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Fibermaxxing Trend Promises Better Digestion and Weight Control—But Is It Safe?

A social media craze is pushing high-fiber diets for gut health and weight loss. But can too much fiber backfire? Dietitians weigh in.

The image shows a diagram of the human body with three different types of colon cancer, each...
The image shows a diagram of the human body with three different types of colon cancer, each represented by a small intestine. The background is white and there is text written on the image, likely providing information about the causes, symptoms, and treatment options available at the National Cancer Institute.

Fibermaxxing Trend Promises Better Digestion and Weight Control—But Is It Safe?

A new social media trend called fibermaxxing is encouraging people to eat more fibre for better digestion, weight control, and overall health. Dietitians note that while increasing fibre can have benefits, balance and gradual changes are key to avoiding discomfort.

The trend focuses on boosting daily fibre intake to improve gut health, keep people feeling full, and support weight loss. Jessica McAllister, a registered dietitian, explains that fibre helps digestion, reduces hunger, and may assist in shedding extra pounds—though maintaining a calorie deficit remains essential for losing weight.

The US Dietary Guidelines suggest adults consume 25 to 38 grams of fibre daily, depending on age and sex. Women are advised to aim for 25 grams, while men should target 38 grams. Instead of relying on a single source, experts recommend a mix of fibre-rich foods like fruits, vegetables, whole grains, and legumes. High-fibre diets have been linked to several health perks, including lower LDL cholesterol, steadier blood sugar, and a healthier gut microbiome. They may also cut inflammation, regulate bowel movements, and reduce risks of chronic conditions such as colorectal cancer, Type 2 diabetes, and heart disease. Good whole-food sources include chia seeds, oats, lentils, nuts, beans, and vegetables like broccoli and cabbage. However, suddenly eating too much fibre can lead to bloating, gas, or other digestive issues. Health professionals advise increasing intake slowly and adjusting based on individual needs.

Fibermaxxing highlights the benefits of a fibre-rich diet, but experts warn against overdoing it. Gradual increases and a varied diet help prevent side effects while supporting long-term health. For most adults, meeting the recommended 25–38 grams daily remains a practical goal.

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