05/23/2026
What is fibermaxxing: smart health strategy, or just another trend?
Fibermaxxing is a trend that doesn’t have a formal medical definition but generally means consuming more than the recommended 25-35 grams of fiber per day. People adopt it in hopes of “fixing” their metabolism, speeding up digestion, losing weight, or even lowering their risk of chronic disease. To do this, some people include large amounts of fiber-rich foods in their diet, while others opt for fiber supplements to achieve these higher daily amounts of fiber.
There are two kinds of dietary fiber, each with its own key role to play in our metabolism:
Soluble fiber dissolves in water. It attracts water into the intestines and turns into a gel during the digestive process. It slows digestion, which can aid in lowering blood sugar and cholesterol levels. Soluble fiber can be found in abundance in foods like apples, bananas, beans, berries, citrus fruits, oats, and peas.
Insoluble fiber, often found in the indigestible husks and skins of plant foods,does not dissolve in the stomach, and can help speed up digestion by moving food through your system more quickly. Foods that are high in insoluble fiber include whole grains like rice and quinoa, leafy greens, cruciferous vegetables like broccoli and Brussels sprouts, nuts, and seeds.
fiber is an important building block of a healthy diet, it’s only one piece of the puzzle. The healthiest eating patterns, like those observed in longevity regions around the world, emphasize fiber-rich plant foods—but in balance with healthy fats, the right macronutrients, and essential micronutrients. This balance supports digestion, metabolism, and whole-body health, without the discomfort that can come from overloading on a single nutrient. The Longevity Diet, developed by Dr. Valter Longo, and backed by decades of research, follows this principle: a mostly plant-based diet, naturally abundant in fiber, is shown to support long-term health and vitality. So are you adding fiber to your diet?