Fibermaxxing is a nutrition trend centered around dramatically increasing daily fiber intake, often beyond the standard recommendations of 21–38 grams per day. People hopping on this trend claim that maximizing fiber helps improve digestion, support weight management, and enhance overall health. The idea is simple: the more fiber you eat, the better your body functions. Fiber-rich foods like beans, lentils, vegetables, fruits, and whole grains not only provide bulk to meals but also slow digestion, making it easier to feel full on fewer calories.
Fiber is one of the most important nutrients for digestive health, and fibermaxxing takes advantage of this. There are two types of fiber: soluble and insoluble. According to the Mayo Clinic, “[Soluble] fiber dissolves in water. It forms a gel-like material in the stomach that slows down digestion. It can help lower cholesterol and blood sugar. [Insoluble] fiber doesn’t dissolve in water. It supports the movement of material through the digestive system and adds bulk to stool. So it can be helpful for people who have constipation or don’t regularly pass stool.”