US gluten-free product salesHours of video uploaded to YouTube per minute
As YouTube upload rates have grown, gluten-free product sales have grown, a correlation of 0.981 that connects video content to dietary restriction with the algorithmic confidence of a chart that knows exactly how many wellness influencers have recommended going gluten-free. The video uploads, the gluten is avoided, and both trends are products of the same internet that spreads both content and dietary anxiety with equal efficiency.
YouTube uploads grew from about 24 hours per minute in 2008 to over 500 hours per minute by 2022. Gluten-free sales grew from about 1.5 billion to over 7 billion dollars. Both are exponential growth curves powered by the same platform economy: YouTube is a primary distribution channel for wellness content, and wellness content is a primary driver of gluten-free adoption. The correlation contains a real mechanism—YouTube videos about gluten sensitivity directly influenced consumer purchasing behavior.
Fifteen years of YouTube uploads and gluten-free sales is a correlation with a genuine mechanism: the videos that upload include wellness content, the wellness content promotes gluten-free diets, and the consumers who watch buy the products. The video is uploaded, the bread is avoided, and the algorithm connects them through the same recommendation engine. The content creates the demand. The demand creates the content. The SCOBY—sorry, the cycle—continues.
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Want to learn more about why correlations like “US gluten-free product sales” vs “Hours of video uploaded to YouTube per minute” don't prove causation? Read our guide to statistical thinking.