Here's what you should know about fibermaxxing, Tiktok's latest health trend

By Ana-Marija Dolaskie — Aug 21, 2025
Have you heard of fibermaxxing? It's all the rage on TikTok, or HealthTok, as influencers literally "max out" on their daily fiber intake for wellness-- and undoubtedly views. But introducing your body to fiber it hasn't seen before comes with some unpleasant side effects.
ACSH article image
Image: ACSH

High fiber diets are essential to our body's well-being; studies from Harvard, Mayo, and NIH have shown this. Now, TikTok influencers are putting a twist on a fad, calling it Fibermaxxing: the idea of exceeding the recommended daily dose of fiber, 25-30 grams for adults, in your diet. 

 

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