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Science + Longevity

Sigma Nutrition

Nutrition evidence, less influencer energy

Sigma Nutrition artwork

How Wellness Culture Commodifies Science

Exercise physiologist Nick Tiller argues that wellness marketing borrows the language of science while discarding its standards, turning genuine findings, like vitamin D's role in immunity, into inflated, unverifiable claims. He traces the damage upstream too: low statistical power, publication bias, and admitted data manipulation in exercise science feed the misinformation industry that influencers later sell.

September 1, 2026 · 7 min read

Sigma Nutrition artwork

Effective Athlete Nutrition Support, Explained

Performance nutritionist Gemma McGuinness argues that nutrition works best as a long-term investment in health, not a lever pulled only for performance. She explains how flexible standards, if-then planning, and psychological safety keep athletes consistent through injury, career transition, and pressure, with energy levels as the clearest sign nutrition is working.

August 25, 2026 · 7 min read

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