Pew analyzed more than half a million health and wellness posts. More than a third promoted a product or service, while only 9% cited an outside source when making a health claim.

The modern wellness feed is not just about motivation, meal prep or workout routines. It is increasingly a commercial layer between consumers and the healthcare system. Pew Research Center analyzed 535,512 Instagram, TikTok and YouTube posts from 6,334 health and wellness influencers published between February and April 2026 and found that 38% promoted a product, service or subscription. Nearly every influencer in the sample — 92% — promoted something at least occasionally, while one-third did so in a majority of their posts. At the same time, only 9% of all posts cited an outside source while making a health claim. That combination is the more important finding: people are encountering health information inside an environment where commercial promotion is common and supporting evidence is not.

Pew found that most influencer content stays on the safer side of the wellness spectrum. Fifty-four percent of posts discussed healthy living, including fitness, nutrition and healthy habits, while roughly a third touched on medical topics. Fitness appeared in 25% of posts, healthy habits in 20% and nutrition in 19%. But those categories increasingly overlap with appearance, supplements, longevity and medical interventions. Fourteen percent of posts discussed improving physical appearance, another 14% mentioned treatments requiring a prescription or medical professional, and 19% discussed a medical condition. That matters because the boundary between lifestyle advice and medical advice is becoming difficult for audiences to see. A post can start with protein intake or sleep and end with a supplement, diagnostic test, injectable drug or treatment recommendation without the viewer ever feeling as if they have entered a medical marketplace.