Reviews and Information for AG1
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CL Answer
How does Athletic Greens’ AG1 compare to multivitamins and Greens powders? Is AG1 worth it?
ConsumerLab reviews the ingredients in AG1, its safety and possible side effects, and how AG1 compares to other products.
Product Review
Fruits, Veggies, and Other Greens Supplements Review (Including Spirulina and Chlorella)
Avoid Lead in Greens, Problems with Pills, and Don't Give Up Eating Whole Foods.
Clinical Update
4/21/2025
Be Careful With AG1
We recently learned that AG1, a popular “greens” supplement, can potentially contain significant amounts of lead and other heavy metals. For details, see the Update in our Greens and Whole Foods Review, which includes how much we found in AG1, and our Top Picks among greens supplements.
Clinical Update
12/13/2024
Liver Concern With Athletic Greens AG1
There have been many reports linking the supplement AG1 by Athletic Greens with liver injury – although these do not prove cause-and-effect. Get the details in the Concerns and Cautions section of our Fruits, Veggies, and Other Greens Supplements Review, which includes our et the details in the Top Picks among products.
Also see: Is there a risk of liver toxicity with certain supplements?
Clinical Update
4/17/2025
Plasticizer in Dark Chocolate, Tuna, AG1
A CL member informed us that one of our Top Picks for dark chocolate was found to contain toxic phthalate compounds in tests by an independent group. See our take on these findings in our Dark Chocolate and Cocoa Review, which includes our Top Picks for dark chocolate and cocoa powder.
Also see the levels of plasticizers found in one of the canned tunas we've tested and the popular "greens" supplement AG1.
Product Review
Tuna, Salmon, Sardines & Herring Review (Canned and Packaged)
Find Products With the Least Mercury and Most Omega-3s
News Release
November 02, 2023
Spirulina and “Greens” Supplement Tests Show Some Problems
White Plains, New York, November 2, 2023 — ConsumerLab tests of spirulina, chlorella, and “greens” supplements revealed that tablets of three brands of spirulina failed to disintegrate within the allotted time, and several other products contained amounts of lead unsuitable for regular consumption ...
