Feeling Off? 5 Signs You Could Be Low on Fiber

Most Americans don't get enough fiber in their daily diets. In fact, only about 5% of adults meet the recommended daily intake for this essential nutrient. 

Fiber does much more than just keep your digestive system moving. It’s important in managing your weight, protecting your heart health, and stabilizing your blood sugar levels.

If you aren't eating enough fiber-rich foods, your body will let you know. At Bethel Medical in Brockton, MA, our medical team advocates optimizing your nutrition. Led by Dr. Douglas R. Grogan and Dr. Jennifer Hall DiFalco, our experts work with you to identify dietary gaps and create wellness plans.

Here are five common signs you're lacking fiber, along with steps you can take to address them.

Your digestion is irregular or uncomfortable

Infrequent bowel movements are the most common indicator of a low-fiber diet. Fiber adds bulk to your stool and holds onto water, which helps waste move smoothly through your digestive tract. When you don't consume enough, you'll likely experience constipation, straining, or irregular bathroom habits.

Adult women should aim for at least 21 to 25 grams of fiber per day, while men need 30 to 38 grams. If you fall short of these targets, you may also experience frequent bloating and abdominal discomfort as your digestive process slows.

You feel hungry shortly after eating

Fiber slows digestion, helping you feel full longer after a meal. It expands in your stomach and slows the rate at which it empties its contents. If you find yourself reaching for a snack an hour after eating a full meal, your plate probably lacked adequate fiber.

Meals that consist mainly of simple carbohydrates, like white bread or sugary pastries, digest very quickly. Our specialists recommend replacing these with complex carbohydrates. Foods like oatmeal, beans, and lentils take longer to break down, providing steady energy and keeping your appetite satisfied until your next meal.

Your energy levels crash throughout the day

When you eat a meal that is low in fiber, your body absorbs the sugars from your food very rapidly. This causes a sudden spike in your blood sugar, followed by a sharp drop. That drop is the reason you feel sluggish, tired, or unfocused in the middle of the afternoon.

By slowing sugar absorption, fiber prevents those sudden spikes and crashes. This helps maintain stable energy levels and reduces strain on your pancreas, thereby lowering your long-term risk of type 2 diabetes.

Your cholesterol is creeping up.

If your recent blood work showed an increase in your cholesterol, your diet might be missing soluble fiber. This type of fiber forms a gel-like substance during digestion. It binds to cholesterol particles in your small intestine, which prevents them from entering your bloodstream and traveling to the rest of your body.

Increasing your intake of soluble fiber can lower your low-density lipoprotein (bad cholesterol). Over time, keeping your cholesterol in a healthy range helps protect your arteries and significantly reduces your risk of heart disease.

You're experiencing unexplained weight gain.

When you don't feel full after meals, you're more likely to overeat. Low-fiber foods are often higher in calories and less satisfying, which can lead to unintentional weight gain over time.

High-fiber foods require more chewing, which gives your brain time to register that you're full. They're also less calorically dense, meaning you can eat a larger volume of food without consuming excess calories. Adding more fruits, vegetables, and whole grains to your plate makes it much easier to manage your weight naturally.

For help in improving your fiber intake and all of your family’s primary care needs, schedule an appointment at our office in Brockton, Massachusetts, today.