09/17/2026
Whether it comes from your plate or a supplement, fiber is one of the most underrated tools for weight loss β here's why.
β Lowest calorie density of almost any food group β you can eat more food for fewer calories, which is one of the simplest ways to create the calorie deficit weight loss actually requires
β Digests slowly, so it keeps you full much longer β meaning you're not fighting hunger between meals
β Feeds the good bacteria in your gut (bifidobacterium is a favorite) β supporting the kind of gut health that makes sustainable weight loss easier over time
Most adults should be aiming for about 30g of fiber a day. Here's where to get it:
Legumes:
β Split peas: 16g per cup, cooked
β Lentils: 15.5g per cup, cooked
β Black beans: 15g per cup, cooked
β Canned cannellini, navy, or great northern beans: 13g per cup
Fruits & vegetables:
β Green peas: 9g per cup, boiled
β Raspberries: 8g per cup
β Pear: 5.5g, medium, with skin
β Broccoli: 5g per cup, boiled
β Apple with skin: 4.5g, medium
β Baked potato with skin: 4g, medium
Grains & seeds:
β Whole-wheat spaghetti: 6g per cup, cooked
β Barley: 6g per cup, cooked
β Quinoa: 5g per cup, cooked
β Oatmeal: 4g per cup, cooked
β Chia seeds: 10g per ounce
Falling short through food alone? A fiber supplement helps close the gap β one tablespoon of Metamucil three times a day gets you about 9g (see my video about this before you start!).
Which one of these are you going to add first?