AG1 (Athletic Greens

AG1 is the most recognizable greens powder in the world, designed to replace a multivitamin + probiotic + adaptogen stack in a single daily scoop, with one serving supplying 75 vitamins, minerals, and plant compounds; it's vegan, non-GMO, and gluten-free. Its strongest clean-label credential is real and meaningful: AG1 is NSF Certified for Sport — NSF conducts annual audits of its manufacturing facilities, reviews ingredients for toxicology, ensures label claims are accurate, and third-party tests AG1 for over 280 banned substances. Each batch is tested for microbial contaminants, heavy metals, allergens, and banned substances, and the company tests for over 500 pesticides and herbicides, including glyphosate. BodySpec + 2 Now the part that matters most to our readers: AG1 does not meet our ingredient-transparency standard. The product groups most of its ingredients into undisclosed proprietary blends, making it impossible to verify whether any individual ingredient reaches a clinically meaningful dose — one dietitian analysis found 49 of the 75 ingredients sit within these proprietary blends. Independent evaluations have raised further flags: one independent testing outfit ranked AG1 poorly, citing the proprietary blend, a Prop 65 lead warning, and a DEHP finding alongside the $3.30-per-serving price — while acknowledging the NSF Sport certification is real and commendable. The supporting research is also largely company-funded, and its only human clinical trial on the full product was a small one-month study of 30 people conducted by the company itself. Lift Big Eat Big + 3 Who it's for: if you're a tested athlete who values the banned-substance screening and wants maximum convenience in one scoop, AG1's certification is among the best in the category, and it's manufactured in a GMP-compliant facility with no added sugar or artificial sweeteners. If your priority is knowing exact doses of what you're taking — the reason this directory exists — transparently-dosed greens powders will serve you better. Top Nutrition Coaching Our verdict: AG1 earns a listing for its genuinely rigorous NSF Certified for Sport testing, but we can't give it a full recommendation while most of its doses stay hidden. We list it so you can make an informed choice — and we'll update this profile if AG1 ever discloses per-ingredient amounts.