Getting more fiber into your diet, especially soluble fiber found in oats, chia seeds, legumes, vegetables, and fruits, can help reduce fat accumulation in the abdominal area.
Psyllium husk is another great source of fiber—and has zero calories.
Fiber swells up with water, increasing the bulk of your stomach contents and giving you a feeling of fullness.
It also reduces fat absorption from food by binding with bile acids required for the digestion of dietary fats.
Fiber can also bind with sugars and other carbohydrates, delaying or reducing their absorption into the bloodstream.