Biohacker Bryan Johnson Condemns AG1 Supplements as Costly and Ineffective
Renowned biohacker Bryan Johnson has publicly criticised the popular AG1 supplements, branding them an "influencer heist" and asserting they demonstrate "no clinical benefit." Johnson, who claims to be biologically over a decade younger than his 48 years and consumes more than 100 daily supplements to reduce his biological age, specifically targeted Athletic Greens (AG1), a supplement powder favoured by influencers for its purported support of gut health, energy production, immune function, and nutrient supplementation.
Clinical Trial Findings Question AG1 Efficacy
Johnson referenced a resurfaced 2024 clinical trial published in the Journal of the International Society of Sports Nutrition, which involved 30 healthy adults aged 18 to 50. In the study, half the participants took AG1 for four weeks while the other half received a placebo. Researchers collected stool samples and administered digestive health questionnaires to assess outcomes.
The trial revealed that AG1 users experienced minor enhancements in their gut microbiome, the body's natural reservoir of beneficial bacteria influencing metabolism, immune health, and digestive function. However, these improvements were not statistically significant compared to the placebo group, and no adverse effects were noted. The study authors concluded that longer-term research is necessary to determine any definitive benefits, suggesting that AG1 might have a more substantial impact on individuals with gastrointestinal issues.
AG1's Response and Celebrity Endorsements
AG1 responded to Johnson's criticisms on social media platform X, defending its product by stating that the study "showed improved nutrient status and digestive quality of life" and is consistent with multiple randomised, placebo-controlled trials. The brand emphasised its commitment to transparency and research quality, asserting that its clinical trials demonstrate positive impacts.
Despite this, AG1 has garnered significant celebrity backing, with high-profile investors and supporters including Formula 1 star Lewis Hamilton and actor Hugh Jackman, who has been a customer since 2021. These endorsements have contributed to the supplement's popularity, though Johnson's remarks challenge its perceived value.
Cost Comparison and Alternative Supplements
AG1 is priced at $79 per month with a subscription or $99 for a one-time purchase, equating to approximately $2.60 to $3.30 per serving. In contrast, Johnson advocates for two more affordable alternatives: chicory inulin and resistant starch.
- Chicory Inulin: A natural soluble fibre found in foods like asparagus, bananas, and onions, available in supplement form for $13 to $25 per 16-ounce container. Studies indicate it may support regular bowel movements and blood sugar control, with research showing benefits in adults with constipation.
- Resistant Starch: A carbohydrate that ferments in the large intestine, potentially improving insulin sensitivity and fullness. It costs around $20 to $40 for a 16-ounce container, with servings ranging from $0.40 to $1.33.
Both alternatives are associated with gut health benefits, though evidence is primarily based on associations rather than proven benefits. Higher doses may cause side effects such as bloating, abdominal pain, and gas.
Broader Implications for Supplement Consumers
Johnson's critique highlights ongoing debates about the efficacy and marketing of dietary supplements, particularly those promoted through influencer campaigns. He urged consumers to "cancel your subscription" to AG1, arguing that the product lacks substantive benefits relative to its cost. This incident underscores the importance of scrutinising clinical evidence and considering cost-effective alternatives in the wellness industry.
As the conversation continues, consumers are encouraged to evaluate supplement claims critically and consult healthcare professionals when making decisions about gut health and nutritional supplementation.
