Most adults in the United States fail to meet recommended fiber intake, potentially raising risks of chronic diseases. A social media movement known as 'fibermaxxing' promotes boosting this nutrient. Experts recommend simple strategies to add more fiber to daily diets through whole foods.
Many Americans consume less than the recommended 25 grams of fiber per day for women and 38 grams for men. This shortfall, according to Alison Brown, a nutrition researcher at the US National Institute of Health, deprives people of benefits such as reduced risks of cardiovascular issues, type 2 diabetes, and certain cancers, while supporting gut microbiota and digestive health.
Foods like fast-food and ultra-processed items are typically low in fiber, Brown explains. Instead of supplements, nutritionists stress natural sources: fruits, vegetables, whole grains, legumes, nuts, and seeds.
Four practical approaches include:
Make small swaps: Replace white bread with whole grain, white rice with brown, or add vegetables like tomatoes and carrots to sauces, suggests Joanne Slavin from the University of Minnesota. Jessica Higgins from NYC Health + Hospitals/Woodhull recommends mashed avocado instead of mayonnaise on sandwiches.
Choose smart snacks: Popcorn (three cups provide nearly four grams of fiber), nut mixes without added sugars, and dips like guacamole (half a cup of avocado has about eight grams) or hummus from legumes, which also aid cholesterol and gut health.
Prepare smoothies: Unlike juices that remove fiber-rich skins and seeds, blenders preserve them. A smoothie with one cup of raspberries, spinach, a quarter avocado, and two tablespoons of almond butter yields about 14 grams; add chia seeds (one tablespoon has five grams).
Use canned and frozen products: They retain the same fiber levels as fresh, are cheaper and longer-lasting. Check ingredients to avoid excess sugars or sodium; rinse canned items like beans and peas, advises Slavin.
These tips make reaching daily goals easier without major changes.
