A new TikTok trend called 'fibermaxxing' is encouraging users to boost their daily fibre intake, with proponents claiming benefits including improved digestion and reduced colon cancer risk. However, nutritionists are urging caution, warning that too much fibre too quickly can cause bloating and discomfort.
Registered dietitian Mascha Davis told Health: 'More isn’t always better.' Kate Mintz, a dietitian at UCLA Health, added: 'Many people don’t get enough fibre, but it’s important to be thoughtful about how you’re doing it so that it’s not too much too fast.'
While fibre can help prevent constipation, increasing intake abruptly may worsen symptoms initially, according to dietitian Jennifer House. The Mayo Clinic notes that excessive fibre can lead to a bloated and uncomfortable experience.
For individuals with autoimmune conditions like Crohn’s disease, or those recovering from intestinal surgery, a lower-fibre diet may be necessary. In general, however, most Americans fall short of the recommended 25–30 grams per day, averaging only 15 grams.
Experts recommend adding fibre gradually over several weeks and staying well-hydrated. Good sources include raspberries (8 grams per serving), beans, oats, and vegetables. As Professor Joanne Slavin of the University of Minnesota advised: 'If you're going to have a cookie, have an oatmeal cookie.'
