AG1 Next Gen by Athletic Greens: A Deep-Dive Review

Overview

AG1 Next Gen is Athletic Greens' reformulated flagship greens powder, packing 83 ingredients — vitamins, minerals, adaptogens, probiotics, digestive enzymes, and plant extracts — into a single daily scoop. It carries a genuine third-party certification and a clinical study showing real micronutrient absorption. But beneath that credible surface lies a formula built largely on proprietary blends, unverifiable doses, and a price tag that's difficult to justify against the competition. Our overall verdict: a product that earns its certification but oversells its complexity.

Trust Score: 58/100 — Solid Option

AG1 Next Gen scores 58 out of 100, placing it in the Solid Option tier. The score reflects meaningful strengths — NSF Certified for Sport status, a published absorption study, and a transparent micronutrient panel — offset by significant weaknesses in proprietary-blend transparency, value for money, and unresolved questions about heavy-metal content. It's a product you can take with reasonable confidence in what's on the label, but not one you can trust to deliver clinical-level doses of most of its advertised actives.

What We Found

Product Quality

A clinical study involving 16 healthy adults found that a single serving of AG1 Next Gen significantly increased blood levels of folate, calcium, zinc, vitamin C, biotin, and several B vitamins compared to a maltodextrin placebo — a meaningful signal for the micronutrient portion of the formula, as documented by ConsumerLab. The problem is that AG1's 83 ingredients extend well beyond vitamins and minerals into three large proprietary blends, and the formula as a whole has not been clinically studied. Independent analysis found that clinically effective doses of common adaptogens — ashwagandha (300–600 mg), rhodiola (200–400 mg), and eleuthero (300–1,200 mg) — cannot mathematically coexist at meaningful levels inside the 2,732 mg plant extract complex alongside more than ten other ingredients. The micronutrient case is real; the adaptogen and superfood case is not verifiable and, by the math, likely incomplete.

Ingredient Integrity

The product's strongest integrity credential is its NSF Certified for Sport status, which provides batch-level testing for banned substances and some contaminant screening. That certification is genuine and not trivial. However, it does not cover comprehensive heavy-metal screening or potency verification for every ingredient, and the three proprietary blends obscure individual ingredient amounts entirely — a meaningful transparency gap for a product marketing itself on the breadth of its formula. ConsumerLab's 2022 testing of the prior AG1 formula found it could contain significant amounts of lead and other heavy metals; AG1 Next Gen is a reformulated product launched after that test, but no current Clean Label Project certification or updated independent heavy-metal disclosure appears in the available evidence. A pending civil lawsuit alleges cadmium and arsenic detection in independent testing, which the brand disputes. The NSF certification prevents a low score here, but the combination of blend opacity and unresolved contaminant questions keeps this dimension firmly in mixed territory.

Brand Integrity

AG1 publishes a certificate of analysis, discloses testing against 500-plus pesticides and 75-plus chemicals, and maintains its NSF Certified for Sport credential — all legitimate structural signals of a brand that takes third-party verification seriously. The brand lists all ingredients on its website and justifies proprietary blend totals as protecting formula innovation. That rationale is common in the industry, but it still means consumers cannot verify whether the actives they're paying for are present at meaningful doses — a transparency limitation the NSF certification does not resolve. The pending litigation over heavy metals is noted context, not a finding of wrongdoing, and the NSF certification's independent verification remains the core integrity signal. No FDA or FTC enforcement history was identified in the available evidence.

Real World Value

At $2.63 per serving on subscription or $3.30 per serving one-time, AG1 Next Gen sits at the premium end of the greens powder market. The NSF certification justifies some price premium over uncertified competitors, but independent analysis found that the vast majority of AG1's ingredients appear at doses far below those used in clinical research — sometimes 10 to 100 times lower. Of the formula's many actives, only Saccharomyces boulardii and BioPerine were identified as having meaningful evidence at their dosed amounts, and those two ingredients are available separately for well under $15 per month combined. Comparable greens powders from Live It Up, Bloom Nutrition, Nested Naturals, and Amazing Grass range from $0.80 to $1.33 per serving. The certification overhead is real, but it does not close a gap that wide.

Customer Experience

AG1 offers a 90-day money-back guarantee, which is one of the more consumer-friendly return policies in the category. Editorial testers reported genuine enjoyment of the original flavor — one described looking forward to drinking it daily and compared the taste favorably to matcha. The newer Citrus and Berry variants drew more mixed reactions, with reviewers describing them as more artificial-tasting with a lingering aftertaste, and texture complaints about grittiness and chalkiness appeared across multiple independent reviews. Pricing sustainability was a recurring concern among testers, which aligns with the value findings above. An independent lab review ranked AG1 eighteenth out of twenty-three greens powders tested, explicitly noting that consumers are paying significantly more for comparatively less quality. The strong guarantee and some genuine user enthusiasm prevent a lower score, but taste polarization and value perception are real friction points.

Bottom Line

AG1 Next Gen is a reasonable choice for someone who prioritizes NSF Certified for Sport status and wants a single product covering their micronutrient bases — the absorption data for vitamins and minerals is real. It is a poor choice for anyone primarily drawn to its adaptogen or superfood blends, where doses are unverifiable and likely sub-clinical, or for anyone price-sensitive, where certified alternatives exist at a fraction of the cost.

Sources

1. A Dietitian's AG1 Review 2026: Nutrition, Taste, Cost and More (long form review, retrieved August 6, 2026)
2. Athletic Greens' AG1: Is It Worth It? - ConsumerLab.com (lab analysis, retrieved August 6, 2026)
3. AG1 (Athletic Greens) Review 2026 — Ranked #18 of… | Evident Health (long form review, retrieved August 6, 2026)
4. AG1 Reviews by ConsumerLab.com with Ratings from Quality Tests - ConsumerLab.com (aggregator review, retrieved August 6, 2026)
5. AG1 (Athletic Greens) Safety, Regulation & Compliance Posture (heavy metal test, retrieved August 6, 2026)
6. Latest Information About Fruits, Veggies & Greens Powders And Pills: Product Reviews, Warnings, Recalls, & Clinical Updates from ConsumerLab.com - ConsumerLab.com (lab analysis, retrieved August 6, 2026)
7. https://drinkag1.com/blog/post/heavy-metals-and-ag1-testing (manufacturing, retrieved August 6, 2026)
8. https://drinkag1.com/about-ag1/faq (brand faq, retrieved August 4, 2026)
9. AG1 Lead Lawsuit 2026: What Victims Need to Know (news, retrieved June 22, 2026)
10. Athletic Greens Review (2026): What Our Experts Think | Garage Gym Reviews (pricing compare, retrieved August 6, 2026)
11. AG1 Alternatives 2026: 6 Cheaper Greens (Pharmacist) (pricing compare, retrieved August 6, 2026)
12. AG1 Review, 2026: A Dietitian’s Take and Our Tester's Review (long form review, retrieved June 26, 2026)
13. My Honest Review Of AG1 (Formerly Athletic Greens) - Good Gear (long form review, retrieved June 26, 2026)