Fiber supports digestion, prevents constipation, controls blood sugar, and lowers cholesterol. Adults typically need about 28-38 g of fiber daily, depending on age, gender, and energy requirements. Here are common signs that your body is receiving sufficient fiber.

Regular bowel movements

According to Very Well Health, regular bowel movements are a key sign that the body may be receiving sufficient fiber. This nutrient helps increase stool bulk, while some types also absorb water, aiding waste movement through the intestines.

Insoluble fiber is found in whole grains, vegetables, and some nuts. Meanwhile, soluble fiber, present in oats, apples, beans, and citrus fruits, helps retain water, contributing to softer stools.

When your diet provides enough fiber combined with adequate water intake, constipation improves. If constipation persists despite eating many vegetables, you should also consider your water intake and activity level.

Green vegetables are rich in fiber. *Photo: Bui Thuy*

Feeling full longer after meals

If you feel full longer after meals containing vegetables, beans, or whole grains, this could indicate that fiber is helping regulate appetite. This nutrient slows digestion to varying degrees and extends feelings of fullness. Some fiber-rich foods also require more thorough chewing, which helps the body recognize satiety.

Consequently, a high-fiber diet can help control portion sizes, limit snacking, and maintain a healthy weight. However, a scientific weight loss plan requires sufficient protein, fats, and total energy in meals, according to Eating Well.

Slower blood sugar rise after eating

Soluble fiber slows the digestion and absorption of carbohydrates, thereby limiting the rate at which blood sugar rises after a meal. This effect is often more pronounced when fiber-rich foods replace refined starches, such as choosing oats or whole grains instead of white bread.

A diet rich in fiber also improves long-term blood sugar control, especially in individuals at risk of type 2 diabetes.

Le Nguyen (Compiled)