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The 9 Best Greens Powders of 2024, Tested and Reviewed
Greens powders may help fill nutritional gaps in your diet
In This Article
In This Article
Black Friday Deals
- Dr. Mercola Fermented Greens Powder, $39 (was $50)
- KOS Show Me the Greens Powder, $25 (was $40)
Eating greens (as well as all other fruits and vegetables) has been linked to numerous health benefits, but many people don't consume the recommended two cups of fruits and three cups of vegetables per day. Greens powders, made of dried, powdered vegetables, are a convenient way to get some of the nutrients found in vegetables, but they may not provide all of the same benefits you get from eating the real thing.
Greens powders aren’t a substitute for eating whole vegetables—which are much higher in fiber and other nutrients, suggests Maddi Osburn, RDN, LD. However, a greens powder can be helpful when you can’t eat as much produce (if you’re traveling, for instance). Some greens powders are loaded with vitamins and minerals, acting like multivitamins, while others focus more on antioxidants. Many also include extras like herbs, adaptogens, prebiotics, probiotics, and digestive enzymes, offering added benefits—but not all ingredients are right for everyone.
To select our top greens powders, our dietitians researched and reviewed several products on the market, evaluating for nutritional content, quality of ingredients, and safety. We tested 39 greens powders in the Verywell Testing Lab and rated each product for taste, texture, smell, third-party testing, nutrition, and value. Many of our top choices are certified third-party tested to ensure their ingredient list is accurate and free of contaminants. If there are adaptogens or other additions in these greens powders, we call them out and explain who may want to avoid them so you can make the best choice for your needs.
Editor's Note
Our team of registered dietitians reviews and evaluates every single supplement we recommend according to our dietary supplement methodology. From there, a registered dietitian on our Expert Review Board reviews each article for scientific accuracy.
Always speak with a healthcare professional before adding a supplement to your routine to ensure that the supplement is appropriate for your individual needs and which dosage to take. Some greens powders may not be recommended for pregnancy or breastfeeding, or they might interact with certain medications or worsen symptoms of chronic illnesses.
Third-party tested
No added sweeteners
USDA Organic
Pleasant fruity taste
Some ingredients, like digestive enzymes, may not be suitable for all
Can take extra mixing to dissolve clumps
Key Specs:
Serving Size: 1 scoop (7 grams)⏐Servings Per Container: 30⏐Gluten-Free: Yes⏐Organic: Yes⏐Added Sweetener: No ⏐Third-party tested: Yes
Who It's For
This is a great choice for those looking for an organic, comprehensive greens powder with additional probiotics and digestive enzymes.
Why We Recommend It
The Garden of Life Raw Organic Perfect Food Green Superfood offers an extensive fruit, vegetable, and sprouted grain and seed blend in addition to greens. We like that the flavor has some fruity notes to complement the grassy taste of a greens powder. It provides 70 percent of the recommended daily amount of vitamin K, 35 percent of vitamin A, 10 percent of riboflavin, and smaller amounts of folate, calcium, iron, magnesium, manganese, and potassium.
This contains an extensive list of ingredients that may provide additional benefits beyond those of other greens powders. However, if you have a food allergy or are taking any prescription medications, it's always important to read the label. For example, it contains digestive enzymes, so if you have any digestive problems, check with a healthcare provider to see if these ingredients could affect your symptoms. Certain digestive enzymes can help with specific digestive concerns, but they must match the condition to help and likely provide no benefit to healthy people.
It also contains probiotics, including two Lactobacillus probiotic strains that may help alleviate certain digestive conditions and support a healthy gut microbiome. However, research is still preliminary, and there are currently no clear recommendations for using this combination of probiotics in the general population.
Garden of Life Raw Organic Perfect Food Green Superfood is organic, gluten-free, and vegan. It has been voluntarily tested and approved by ConsumerLab's Quality Certification Program.
Things To Consider
- This greens powder is particularly high in vitamin K—around 70 percent of the recommended daily allowance—which can be beneficial for some people but may pose a risk for people taking certain medications. Vitamin K can interact with blood thinners, cholesterol medications, and some antibiotics.
- The texture is a bit clumpy, requiring more mixing to dissolve fully. Alternatively, it would be a good option to blend into a smoothie.
PHOTO: Verywell Fit / Jhett Thompson PHOTO: Verywell Fit / Jhett Thompson PHOTO: Verywell Fit / Jhett Thompson
Third-party tested
Contains algae
More affordable than some options
Contains prebiotics, probiotics, rosehip, and digestive enzymes, which may not be suitable for everyone
Has a grassier flavor and slightly grainy texture
Key Specs:
Serving Size: 1 scoop (8 grams) | Servings Per Container: 30 | Gluten-Free: Yes | Organic: No | Added Sweetener: Some blends contain stevia | Third-party tested: Yes
Who It's For
Choose this powder if you like the taste of matcha and the nutrient composition of our top pick but want a budget-friendly alternative.
Why We Recommend It
Amazing Grass Greens Blend is third-party tested for purity and potency and contains a blend of fruits, vegetables, grasses, prebiotics, probiotics, and digestive enzymes. Each serving provides 58 percent Daily Value of vitamin K, 18 percent DV of vitamin C, and smaller amounts of vitamin A, calcium, and potassium. We also like that it contains 3 grams of fiber, which is relatively high for a greens powder.
This blend contains two types of algae—spirulina and chlorella—which may have potential health benefits, such as a reduced risk of certain chronic diseases, due to their nutrient and antioxidant content.
The added prebiotics, probiotics, and digestive enzymes may benefit some people but not others, especially those with digestive disorders.
Things To Consider
- This powder blends well, but it has more of a grainy texture than others. When it comes to taste, it is definitely on the grassier side, with a similar taste to a matcha drink.
- Amazing Grass contains rosehips, which may interact with antacids, estrogens, lithium, and medications that affect blood clotting.
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Third-party tested
Small serving size and versatile use
Contains fermented greens and algae
Lower in vitamins and minerals
Contains moringa and caffeine, which may not be a good choice for some
Key Specs:
Serving Size: 1 teaspoon (3 grams) | Servings Per Container: 90 | Gluten-Free: No | Organic: Yes | Added Sweetener: Monk fruit extract and stevia ⏐Third-party tested: Yes
Who It's For
This versatile greens powder can be mixed into various beverages and foods, packing a high dose of antioxidants into just one teaspoon. It contains some iron but few other vitamins and minerals, making it a good choice for those looking for just antioxidants from their greens powder plus a boost of caffeine.
Why We Recommend It
The Dr. Mercola Fermented Greens Powder contains a blend of fermented grasses, greens, vegetables, herbs, matcha, and algae, including chlorella and spirulina. Fermenting fruits, vegetables, and other foods may increase your ability to use and benefit from the antioxidants found in those ingredients.
We like that this powder has spirulina and algae, which may offer several health benefits, like lowering cholesterol and blood pressure. While it contains 30% of the daily value of iron, it is primarily beneficial for its antioxidant content. Antioxidants protect your cells from damage caused by free radicals, which can contribute to aging and various diseases.
While some may appreciate the taste with just water, this greens powder can work well when mixed into more savory liquids. We like the nutrient density of this powder and how well it blends without clumps. It may work best when mixing this into a soup or a green vegetable smoothie.
Things To Consider
- This greens powder contains yerba mate and matcha, which contain caffeine. If you are sensitive to caffeine, are pregnant, or take a medication that could interact with caffeine, you may want to avoid this product.
- It also contains moringa, an herb that can affect how medications are broken down in the liver, especially thyroid medications and those used for diabetes. If you're taking any medications, review this product with a healthcare provider before using it.
- The flavor of fermentation may throw some people off, as it is more tangy and similar to a vegetable broth. Still, the added natural sweeteners (monk fruit and stevia) help to neutralize the bitterness.
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NSF Certified for Sport
High in antioxidants
Tastes like a fruity, mint lemonade
Contains herbal ingredients that may not be suitable for all
Can be clumpy
Lower in vitamins and minerals
Key Specs:
Serving Size: 1 scoop (10 grams) | Servings Per Container: 30 | Gluten-Free: Yes | Organic: No | Added Sweetener: Stevia | Third-party tested: Yes
Who It's For
This powder is great for athletes and active people looking for a greens powder that's NSF Certified for Sport and may help in muscle recovery due to its tart cherry and antioxidant content.
Why We Recommend It
If you're a competitive athlete, it's essential to choose a product that is third-party tested for any ingredients banned by your sport. We recommend Biosteel Sport Greens powder for athletes because it meets the rigorous NSF Certified for Sport requirements. The Acai Lemonade flavor has quite a distinct citrus smell that combines with almost a minty undertone for the flavor profile.
Some research suggests that fruit and vegetable juices and concentrates may promote muscle recovery. Specific research also connects tart cherry, an ingredient in this blend, with exercise recovery.
This powder contains a blend of different greens and berries and other antioxidant boosters like green tea extract, CoQ10, and piperine. This is primarily an antioxidant supplement (including vitamin C) but contains no significant amounts of other vitamins or minerals. It also includes an amino acid complex with l-glutamine and l-leucine, which may help exercise recovery, but the research on its effectiveness is inconsistent.
Things To Consider
- Some people might not love the aftertaste, and it takes a while to mix this powder to get rid of clumps.
- It contains several herbal ingredients, including green tea extract and piperine, that can interact with certain medications and are unsuitable for those with certain health conditions or those who are pregnant or breastfeeding.
- It contains inulin, a type of fiber that can be helpful for some people's digestion but problematic for others, including those with IBS.
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Good source of iron
USDA Organic, non-GMO and produced in an NSF-certified facility
Contains algae
Pleasant green apple smell and taste
Not third-party tested
Can leave some sediment on the bottom
Key Specs:
Serving Size: 1 scoop (9.5 grams) | Servings Per Container: 28 | Gluten-Free: Yes, but not certified | Organic: Yes | Added Sweetener: Stevia and monk fruit extract | Third-party tested: No
Who It's For
This powder is for those who don't like the taste of traditional greens powders and want a fruity alternative with simple, organic ingredients.
Why We Recommend It
If you're looking for an organic and flavored greens powder, try KOS' green apple sorbet-flavored powder. It's sweetened with monk fruit and stevia, keeping the calorie content low while adding some sweetness. It's USDA organic, non-GMO, and produced in an NSF-certified facility.
This product also has two grams of fiber and is a good source of iron, providing 17 percent of the daily value. Iron is an important mineral that produces hemoglobin, which helps transport oxygen throughout the body. Having enough iron in your diet can also help reduce your risk of anemia.
In addition to the algae—spirulina and chlorella—KOS keeps it simple with wheat grass, cabbage, kale, broccoli, apple, and green bell pepper powders. We like the strong green apple flavor and smell profile of the powder since it helps mask and tone down the earthy flavor of greens.
Things To Consider
- This powder contains a digestive prebiotic blend that may not be suitable for some individuals with digestive sensitivities and disorders, including those with IBS.
- It dissolves well in water but may leave some sediment on the bottom of your glass.
- It's not third-party tested for purity and potency.
PHOTO: Verywell Fit / Jhett Thompson PHOTO: Verywell Fit / Jhett Thompson PHOTO: Verywell Fit / Jhett Thompson
Third-party tested
Single ingredient
USDA Organic
Easy to fully dissolve in water
Does not contain micronutrients
Not the best taste if you don't like broccoli
Key Specs:
Serving Size: 1 /4 teaspoon | Servings Per Container: 30 | Gluten-Free: Yes | Organic: Yes | Added Sweetener: No | Third-party tested: Yes
Who It's For
This powder is a good option for those looking to boost their antioxidant intake with a simple, single-ingredient powder.
Why We Recommend It
If you want pure greens powder without unnecessary added ingredients, we recommend True Grace Superfood Powder Broccoli Microgreens because the only ingredient is powdered broccoli microgreens. Microgreens are miniature leafy greens that are high in antioxidants, and research suggests these small plants have anti-inflammatory and anti-bacterial properties. This powder does not contain vitamins and minerals, but it is a good option to boost your antioxidant intake.
This powder is certified regenerative organic, non-GMO, and grown on small US farms. Certified regenerative organic signifies that True Grace places a strong emphasis on restoring soil quality and promoting sustainable land use practices. It's also third-party tested by Alchemist Labs for purity and potency, including heavy metal testing.
We also like that this powder blends fully in water in just a few seconds, unlike other powders that may take 20-30 seconds to thoroughly mix in.
Things To Consider
- If you aren't a fan of broccoli, you may not love the taste of this greens powder because it does have a mild broccoli flavor. The flavor isn't overpowering, but it is noticeable. Because there is no added sweetener and it is from broccoli microgreens, note this option may have a stronger, more vegetable-forward flavor compared to others.
- It does not contain vitamins and minerals.
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Third-party tested
Physician approved as safe to take while pregnant or breastfeeding
Slightly sweet, pleasant flavor
Contains inulin, which may cause gas and bloating in some
Does not contain micronutrients
Key Specs:
Serving Size: 1 scoop | Servings Per Container: 30 | Gluten-Free: Yes | Organic: Some ingredients are organic | Sweetener: Stevia
Who It's For
If you are pregnant or breastfeeding, this greens powder is physician-approved safe option that is high in antioxidants and contains both probiotics and prebiotics.
Why We Recommend It
If you are pregnant or breastfeeding and looking to supplement with a greens powder, you want to pay particularly close attention to the ingredient list and supplement facts, as well as the quality of the product. Some greens powders contain adaptogens, herbal blends, and digestive enzymes, as well as high amounts of certain vitamins and minerals, which may not be suitable or safe to take while pregnant or breastfeeding. Perelel's Synbiotic Greens Powder is a physician-approved, safe option that is also third-party tested for purity and potency.
In addition to the antioxidant greens and fruit blend, it also contains a prebiotic fiber called inulin, which is a fermentable fiber that can help support a healthy gut microbiome. It also contains probiotics, which can help to populate the gut with beneficial bacteria. The use of probiotics is generally considered safe during pregnancy; however, the research behind strains, dosages, and their associated benefits is somewhat limited.
This powder comes in an acai berry flavor, made with natural flavorings, and slightly sweetened with stevia. We love that the flavor is subtly sweet and not overpowering, which may be helpful if you have morning sickness. It fully dissolves in water very quickly without leaving any clumps. The smell can be slightly off-putting, as it is more earthy, but the taste is surprisingly pleasant.
It is non-GMO and free of gluten, dairy, soy, synthetic fillers, artificial colorings, and flavorings, Perelel offers a subscription service with monthly delivery (which also brings down the cost of the product), or you can buy it as a one time purchase.
Things To Consider
- While it dissolves in water quickly, if you don't drink it right away, some sediment may remain on the bottom.
- It contains inulin, but because this is fermentable, it can cause gastrointestinal symptoms like gas and bloating in some and may not be suitable for those with IBS.
- It does not contain vitamins and minerals.
Third-party tested
Good source of iron
Contains 12 grams of protein
Some may find the vanilla flavor too strong
Key Specs:
Serving Size: 1 scoop (20 grams) | Servings Per Container: 30 | Gluten-Free: Yes | Organic: Yes | Added Sweetener: Coconut sugar and stevia ⏐Third-party tested: Yes
Who It's For
This is a great option if you are looking for an all-in-one greens and protein powder and want to mask the taste of greens. It also contains a high amount of iron, making it a good choice for vegans and vegetarians.
Why We Recommend It
Sakara Organic Protein + Greens Super Powder contains a plant-based protein blend including pea, hemp seed, and sesame protein, offering 12 grams of protein with all essential amino acids. The greens blend is made with spirulina, wheatgrass, barley grass, and chlorella—a good source of phytonutrients and omega-3s DHA and EPA. It also contains 25 percent Daily Value of iron, making it a great choice for vegetarians looking to increase their iron intake.
If you're looking for a product that masks that typical earthy greens flavor, this option may be good for you, as it tastes more like a protein smoothie than a greens powder. This powder has a slightly sweet, vanilla-coconut taste from coconut milk, vanilla powder, and a small amount of stevia that blends well into smoothies. For a nutrient-dense, high-fiber, high-protein smoothie, blend it with fruit, spinach, nut milk, and nut butter.
This product is made with simple, USDA organic ingredients and is third-party tested. Sakara offers the option to purchase one time or as a renewing subscription at a slightly lower price point.
Things To Consider
- This product definitely differs from your typical greens powder, with a creamier texture and strong vanilla flavor, which some may not prefer.
- While it is free of common allergens, it is processed in a facility that processes wheat, milk, eggs, soy, and tree nuts, so it may not be suitable for those with certain severe food allergies.
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NSF Certified for Sport
High in many vitamins and minerals
Free of common food allergens
Easy to dissolve in water and smooth texture and great taste
Some ingredients could interact with medications
Exact amounts of ingredients are not listed in proprietary blends
Key Specs:
Serving Size: 1 scoop (12 grams) | Servings Per Container: 30 | Gluten-Free: Yes | Organic: No | Added Sweetener: No⏐Third-party tested: Yes
Who It's For
If you are looking for a greens powder that has a lot of nutrients packed in one serving, AG1 could be a good fit for you. Think of this powder as an alternative to a daily multivitamin. It also contains additional adaptogens, digestive enzymes, and probiotics if you are looking to add those supplemental ingredients to your routine.
Why We Recommend It
Athletic Greens (AG1) has an impressive 75-ingredient list in its greens powder, mainly from whole foods, vitamins, and minerals. The company has strict manufacturing standards with 100 percent traceable ingredients for each batch produced. Their greens powder is vegan, contains no artificial ingredients or pesticides, and is free of common food allergens, including gluten. We also appreciate it has strong third-party testing and is NSF Certified for Sport.
This greens powder could serve as a multivitamin—it is a good source of many vitamins and minerals (except iron). It also contains probiotics, digestive enzymes, and adaptogens. Adaptogens are plants that are thought to help the mind and body better handle—or adapt to—stress. AG1 contains the adaptogens Rhodiola rosea (R. rosea), ashwagandha, and medicinal mushrooms reishi and shiitake to help support the way your body responds to stress. Adaptogens have been used for centuries in some cultures for many health benefits, but it's important to note there are limited long-term studies on how adaptogens—and in what dose—impact our health.
AG1 offers a subscription service to make auto-renewing easier and at a lower price point, which can be appealing since it's a more expensive option. This greens powder can be purchased in a 30-serving pouch or in convenient travel packs to take on the go.
What stands out to us about AG1 is how well it dissolves in water; we didn't notice any clumps or grainy texture. We love that the flavor is pleasant, on the fruitier side, and not bitter at all!
Things To Consider
- While appealing to some, it's important to note that the long ingredient list includes adaptogens, plant extracts, mushroom powders, digestive enzymes, and probiotics. These ingredients may not be best for everyone, especially if you are taking any medications, are pregnant, or breastfeeding. In these instances, we recommend consulting a healthcare professional before you try AG1.
- If you already take a multi, we recommend consulting a healthcare professional before taking this greens powder to make sure you're not getting too much of some nutrients.
PHOTO: Verywell Fit / Jhett Thompson PHOTO: Verywell Fit / Jhett Thompson
Adaptogens in Athletic Greens
Rhodiola rosea is a plant that grows in mountainous regions in Asia and Europe. Some studies suggest it may help combat fatigue, exhaustion, and stress. However, more research is needed on optimal dosing and long term effects. Rhodiola can also interact with immunosuppressants, any medications broken down in the liver, those used for diabetes, or high blood sugar.
Ashwagandha is an adaptogen associated with increased energy levels, improved sleep, and reduced anxiety. The long term safety and recommended dosing of ashwagandha is not well known from research. It's important to note ashwagandha may also interact with several medications, including immunosuppressants, sedatives, thyroid hormones, blood pressure medications, diabetes medications, and other herbs or supplements.
Medicinal mushrooms reishi and shiitake can also act like adaptogens and may have other health benefits like helping to lower inflammation and blood pressure. Reishi mushrooms may interact with blood pressure, diabetes, and blood clotting medications. High doses may also increase risk of bleeding—something to consider for those with blood disorders and who have a surgery in coming weeks. The safety of taking these mushrooms during pregnancy and breastfeeding is also not well known.
Where We Stand
Garden of Life Raw Organic Perfect Food Green Superfood tops our list with its comprehensive plant blend rich in vitamins, minerals, and antioxidants, complimented with a great taste. If you are looking for a greens powder that includes protein, try Sakara Protein + Greens.
Greens Powders We Also Tested
While these didn't make our top picks, these greens powders are worth mentioning and may also suit your needs.
- Ancient Nutrition Organic Super Greens: We like the flavor of this greens powder, and it's easy to blend. Plus, it's found in many stores so it's a convenient buy. Like some other powders, it does have adaptogens added which may not be best for all.
- Your Super Super Green Mix: This powder ranks high for texture, as it mixes very quickly and thoroughly in water. It also has a pleasant earthy flavor, but it may not be best if you're looking to mask the flavor of greens.
- Nested Naturals Super Greens: The chocolate flavor of this powder is overwhelming when mixed with just water and it also left a lot of clumps behind. It could be a good option to blend into smoothies.
How We Tested & Selected Greens Powders
Our team works hard to be transparent about why we recommend certain supplements; you can read more about our dietary supplement methodology here. We support supplements that are evidence-based and rooted in science. We value certain product attributes that we find to be associated with the highest quality products.
It's important to note that the FDA does not review dietary supplements for safety and effectiveness before they go to market. Our team of experts has created a detailed, science-backed methodology to choose the supplements we recommend.
In addition to our research, we have tested 39 top-rated greens powders in The Verywell Testing Lab. We tested each product by mixing one serving with eight ounces of water (or the recommended amount) in a glass cup with a spoon. We reviewed each greens powder for flavor, aftertaste, texture, smell, and value, recognizing that this can be subjective and differ between individuals.
Our nutrition editors analyzed all of the greens powders for nutritional value and third-party testing. To determine the nutrition ranking, we looked at nutrient content, quality of ingredients and also additional ingredients, such as adaptogens. We also considered third-party testing and associated certifications for purity and potency. We combined these scores with the taste testing scores to arrive at a total score for each product.
The Verywell Fit Team Tests The Best Green Powders
Verywell Fit / Jhett Thompson
Are Greens Powders Good for You?
Greens powders offer a blend of essential vitamins, minerals, and antioxidants that support overall health. They often include unique ingredients like spirulina and chlorella, known for their potential benefits but typically only found in powder form. However, the mix of ingredients can vary widely between brands, which means the health benefits may differ, too.
Some small studies have shown that greens powders might offer health benefits, such as lowering blood pressure, while studies looking at whether greens powders can increase energy have shown no benefit.
Fruit and vegetable powders may increase blood levels of vitamins and certain antioxidants, like carotenoids. Carotenoids reduce the risk of certain cancers, age-related macular degeneration, and cardiovascular disease.
However, more research is needed to understand greens powders and whether or not they offer genuine benefits. Keep in mind that a great deal of the benefits of fruits and vegetables is offering nutrients in combination with dietary fiber, and greens powders usually offer little to no fiber. Greens powders cannot replace a well-balanced, varied diet, but they may be helpful to some people who aren't getting enough nutrients through food.
Greens powders may be beneficial for:
- People who don't eat many fruits and vegetables: "For those who may not like vegetables, greens powders may be a great alternative," says Andrew Akhaphong, MS, RD, LD. Although greens powders aren't an exact replacement for eating green vegetables (and other nutrient-rich produce), they can provide important nutrients to support health that may otherwise be missing.
- People who travel frequently: It can sometimes be challenging to eat enough produce when you're constantly on the go, and greens powders can be an easy, portable way to meet some of your vitamin and mineral needs.
- Some athletes: "Prolonged high-intensity exercise can increase vitamin and mineral needs. Some athletes have trouble meeting even their baseline nutrient needs, let alone an increased amount for optimal recovery," says Osburn. If you're a competitive athlete and decide to use a greens powder, be sure to choose a third-party tested product and free from any banned ingredients for your sport.
- People with decreased absorption: People with certain illnesses like inflammatory bowel disease may have lower nutrient absorption. In these cases, a greens powder may help you achieve higher nutrient needs. However, be sure that there aren't any ingredients that can make your digestive problem worse.
- People undergoing surgery: Emerging research suggests that fruit and vegetable powders could aid in recovery from surgery. This may be especially beneficial for people undergoing oral surgery or other surgeries that limit the ability to consume whole fruits and vegetables.
Who May Not Benefit From Greens Powders
The ingredients in greens powders vary significantly, so it's important to thoroughly read the label to make sure it's safe for you. Most greens powders contain more than just leafy green vegetables. Many contain grasses and alfalfa sprouts that could interact with medications or worsen some health concerns.
While they are often marketed as "food," greens powders are a supplement, and even food-based ingredients can be problematic for certain people in the quantities included. Also, because there is so much variation between products, a greens powder that is helpful for one person may not be good for another. The following people should be very cautious when considering a greens powder.
- People taking prescription medications: Most greens powders include high amounts of vitamin K, which can interact with various prescription medications. "Medications it may interact with include blood thinners, cholesterol-lowering medications, antacids, and those controlling seizures," says Akhaphong.
- Pregnant or breastfeeding people: Many ingredients, such as adaptogenic herbs, prebiotics and probiotics, and digestive enzymes, are not well-studied in pregnant and breastfeeding people, so we don't know if they are safe. If you're taking a prenatal vitamin, adding a greens powder with added vitamins and minerals could lead to getting too much of some nutrients. We recommend Perelel Synbiotic Greens Powder as a pregnancy and breastfeeding safe choice.
- People with end-stage kidney disease: "Depending on the product, a serving may contain 140 to 350 milligrams of potassium. Individuals with end-stage kidney disease may not be able to tolerate large amounts of potassium as the kidneys have a hard time removing excess potassium from their blood. A build-up of potassium, called hyperkalemia, may cause issues like dizziness, nausea, numbness, and a slow heart rate," says Akhaphong.
- People with a wheat allergy: Most greens powders contain wheatgrass, which may be problematic for anyone with a wheat allergy. Of note, wheatgrass is typically harvested before the seed sprouts on the wheat, meaning it is usually gluten-free. However, anyone with celiac disease or who avoids gluten should choose a product that is certified gluten-free.
- Professional and collegiate athletes: While greens powders can be a helpful way to add nutrients to an athlete's diet, some supplements may contain ingredients that are banned for sport. "Not all greens powders are third-party tested, so it is especially important for athletes that may be drug tested to avoid using greens powders without proper third-party testing," says Osburn. Look for one that is NSF Certified for Sport, one of the most rigorous third-party testing certifications.
- People with digestive disorders: Many greens powders contain ingredients that can worsen digestive problems. People with irritable bowel syndrome (IBS) who have trouble digesting certain carbohydrates, known as FODMAPs, may have trouble with greens powders. "Greens powders may contain FODMAPs like inulin or FODMAP-rich ingredients like some fruits and vegetables," says Akhaphong. Probiotics and other prebiotics can also worsen some digestive symptoms.
- People taking other vitamin and mineral supplements: If you're taking a multivitamin or other vitamin or mineral supplement, check to make sure that you won't be consuming too much of any one nutrient. Most nutrients in supplement form (including in greens powders) can cause negative—or even dangerous—side effects when you consume too much. Review the Tolerable Upper Limits set by the National Institutes of Health Office of Dietary Supplements.
A Note of Caution with Alfalfa and Lead
Most greens powders contain alfalfa as a primary ingredient. Although people believe alfalfa to be helpful in treating many diseases, from diabetes to high cholesterol and digestive issues, there is no research to support this.
Regularly consuming high doses of alfalfa can be dangerous, especially for people with autoimmune disorders. Consuming high amounts of alfalfa may not be safe for pregnant or breastfeeding people as well as anyone with hormone-related conditions like breast cancer and endometriosis.
Alfalfa has also been shown to interact with anticoagulant medications, hormonal birth control, diabetes medications, and immunosuppressants.
Another potential concern with greens powders is lead. Lead is naturally found in many foods including green, leafy vegetables. Third-party tested greens powders will test for safe lead levels. However, it's important to note some third-party tested greens powders are still not recommended for regular use during pregnancy or for young children because they have a lower tolerance for lead. Therefore, always check with a healthcare professional if you are pregnant or before giving a greens powder to a child.
What to Look for in Greens Powders
Third-Party Testing
Third-party-tested supplements are sent to an outside lab, where they are tested for purity and potency to ensure they contain what they say they contain and do not contain any potential contaminants. Trusted third-party certifications include ConsumerLab.com, NSF, USP, and Informed Choice. However, these certifications can be difficult to obtain and expensive for manufacturers, so many companies choose not to get their products tested. If you're selecting a supplement that does not have third-party testing, we recommend choosing a trusted brand that does rigorous internal testing.
Some greens powders may be contaminated with heavy metals like lead. Children and pregnant people are more susceptible to the potentially harmful effects of consuming high levels of heavy metals.
Greens powders could also contain ingredients banned in high-level competitive sports, so finding one that is third-party explicitly tested for sport, such as NSF Certified for Sport, is vital for any competitive athlete.
Form
Greens powders are typically a mix of powdered leafy greens, vegetables, fruits, and extracts. They can also contain seaweed (like spirulina), probiotics, enzymes, and herbs, and some have the addition of protein powder. While some powders contain high amounts of vitamins and minerals, there isn't research to understand the bioavailability (how much your body can absorb) of these nutrients in this form. It could be more or less than eating fresh or frozen fruits and vegetables.
Ingredients & Potential Interactions
Because greens powders have not been thoroughly researched and don't contain standardized ingredients, we're very selective with the brands we recommend.
Pay attention to the following ingredients that may be in greens powders:
- Adaptogens, like reishi mushrooms, Rhodiola, and ashwagandha: Greens powders that have adaptogens may warrant caution for those on medications, pregnant, or breastfeeding.
For example, reishi mushrooms may interact with blood pressure medications, diabetes medications, and certain cancer treatments. Rhodiola or ashwagandha may interact with several antidepressants, blood pressure medications, diabetes medications, thyroid medications, cholesterol medications, immunosuppressants, and many other drugs broken down in the liver. We suggest talking with a healthcare provider before taking supplements with adaptogens if you take any medications—even ones not listed here. In addition, the safety of adaptogen supplements during pregnancy and breastfeeding is not well known.
- Digestive enzymes: In general, digestive enzymes provide no benefit to healthy people. While more research is needed, digestive enzymes also appear to provide little to no benefit to those with digestive disorders unless there is a known enzyme deficiency. "Digestive enzymes are best suited for those with diagnosed enzyme deficiencies such as lactose intolerance or other known digestive conditions that may cause symptoms like gas or bloating after eating certain foods. If you have been diagnosed with any of these conditions, taking a separate digestive enzyme supplement that targets your specific issue is recommended," says Finkel.
- Probiotics: Many greens powder contain low levels of probiotics—about the amount you'd find in yogurt. While you've probably heard probiotics are beneficial, there are many different types of probiotics and no clear recommendations around which strains, strain combinations, or doses the general population should take. Specific probiotic strains have been clinically shown to improve a few gastrointestinal conditions, but these aren't the ones you'd find in a greens powder, says Finkel. That said, certain probiotics can also worsen some digestive conditions.
Carefully read a supplement's ingredient list and nutrition facts panel to know the ingredients and total amount relative to its recommended daily value.
Bring the supplement label to a healthcare provider to review the different ingredients contained in the supplement and any potential interactions between these ingredients and other supplements and medications you're taking.
How Much To Take
There's no standard dosage for greens powders, and ingredients and nutrient amounts can vary significantly. It's important to review the Recommended Dietary Allowance and Tolerable Upper Limits for each ingredient to make sure you are consuming safe levels of each nutrient. Be aware that:
- Your body filters and removes excess water-soluble vitamins, like vitamin C and B vitamins. This makes it less likely that these nutrients can cause harm, but it's still possible to have negative side effects from very high doses in supplement form.
- Fat-soluble vitamins—A, D, E, and K—can be stored in fat tissue and are harmful when consumed in excess. Many minerals can also be harmful in very high amounts.
- People taking multiple supplements are at higher risk for exceeding the Tolerable Upper Limits of vitamins and minerals. Review your greens powder and any other supplements you're taking with a healthcare provider to ensure you are not exceeding the upper limits for any nutrient.
Our Experts
Our team of dietitians helps write and edit all of our nutrition content, but we also interview experts in the field to understand the benefits and drawbacks of greens powders, what's important to consider, and which greens powders are the best. We consulted with the following dietitians:
- Anne Cook Carroll, MS, RD, CDN, is a registered dietitian who works with patients to meet their health goals and educates patients on the appropriate usage of supplements to optimize their nutritional status and overall health. She also specializes in supplement research and analysis.
- Maddi Osburn, RDN, LD, is a registered dietitian and owner of Flexible Nutrition, LLC. She specializes in sports and general fitness nutrition.
- Suzie Finkel, MS, RD, is a registered dietitian and owner of Well Digested Nutrition. She specializes in digestive and metabolic diseases.
- Andrew Akhaphong, MS, RD, LD, is a registered dietitian with a culinary background specializing in gut disorders, diabetes, and weight management.
Frequently Asked Questions
Are greens powders as good as fresh greens?
Research specifically looking at greens powders is limited and doesn't suggest they offer as many benefits as eating whole foods. What we do know is that there are synergistic effects to eating whole foods, meaning that the nutrients in whole foods work together, so you get more health benefits from eating foods in their natural form than from taking supplements.
"Greens powders can help increase your fruit and vegetable intake but don't count on them to completely replace whole foods. Most don't contain all of the vitamins and minerals you need," says Osburn.
One area where many greens powders fall short is their fiber content—many contain very little to no fiber. On the other hand, fresh greens and other vegetables provide fiber, which can promote better digestion and help lower cholesterol. When consumed from whole foods, fiber can also make you feel fuller, which may help you eat less overall, but the same can't be said for fiber supplements.
How do I make green powders taste better?
There are many ways to make greens powders taste better to help quell their bitter or grassy taste. Instead of drinking them plain, add them to a smoothie with fruit, adding sweetness and providing fiber and other nutrients. For even more tasty ideas, try mixing greens powders into your favorite smoothie protein shake, as a seasoning for a soup, into pancake or waffle batter, in baked goods, or even mixing into your favorite dip.
Do greens powders help with bloating?
Some greens powder brands advertise that they relieve bloating, but the evidence for this is not supported by enough research. Certain brands of greens powders contain digestive enzymes, which may help to alleviate gastrointestinal side effects like bloating in those with certain digestive enzyme deficiencies, although they are unlikely to provide any benefit to those without deficiencies.
Those with diagnosed enzyme deficiencies should consult a healthcare provider and may require prescription medication or a specific separate enzyme supplement. It is important to note that certain digestive enzymes and probiotic blends can make some digestive conditions worse, so they should be taken with caution for those with preexisting GI conditions.
Additionally, some greens powders contain ingredients such as inulin, a fermentable fiber, and alternative sweeteners, which can both cause bloating in some individuals, particularly those with IBS.
Are greens powders worth it?
Whether or not they're worth it really depends on your nutrient needs, diet, budget, and lifestyle.
Greens powders can be helpful for days when you don't have time to prepare fresh vegetables or if you are traveling and have limited access to fresh greens. However, in most cases, they're not essential to your diet. They can also be costly—ranging from $20 to $40—and come with a higher price tag if they're third-party tested, USDA-organic, or have added ingredients like adaptogens, probiotics, and digestive enzymes.
Why Trust Verywell Fit
Sarah Anzlovar, MS, RDN, LDN, is a registered dietitian with a master's degree in nutrition communication. She owns a private practice in the suburbs of Boston, helping her clients ditch diets and learn to eat foods that help them feel their best and achieve optimal health. Sarah also uses her expertise to translate nutrition research into relatable and approachable recommendations for our readers, like the top greens powders on our list.
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