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The Why Behind Dietary Fiber

Posted by Emily Ledergerber in Uncategorized | 0 comments

The Why Behind Dietary Fiber

Dietary fiber is an essential component of a healthy diet. You’ve probably heard on several occasions that fiber is an essential component of every good diet and that it’s good for your health. But, why?

Dietary fiber is important to your health.

Dietary fiber is important to your health.

Dietary fiber — found mainly in fruits, vegetables, whole grains and legumes — is probably best known for its ability to prevent or relieve constipation. But foods containing fiber can provide other health benefits as well, such as helping to maintain a healthy weight and lowering your risk of diabetes, heart disease and some types of cancer.

Selecting tasty foods that provide fiber is not a difficult task. Find out how much dietary fiber you need, the foods that contain it, and how to add them to meals and snacks.

What is dietary fiber?
Dietary fiber, also known as roughage or bulk, includes the parts of plant foods your body can’t digest or absorb. Unlike other food components, such as fats, proteins or carbohydrates — which your body breaks down and absorbs — fiber isn’t digested by your body. Instead, it passes relatively intact through your stomach, small intestine and colon and out of your body.

Benefits of a high-fiber diet
The benefits of fiber are incredible to your body.

  • Fiber normalizes bowel movements. Dietary fiber increases the weight and size of your stool and softens it. A bulky stool is easier to pass, decreasing your chance of constipation. If you have loose, watery stools, fiber may help to solidify the stool because it absorbs water and adds bulk to stool. 
  • Fiber helps maintain bowel health. A high-fiber diet may lower your risk of developing hemorrhoids and small pouches in your colon (diverticular disease). Studies have also found that a high-fiber diet likely lowers the risk of colorectal cancer.
  • Fiber lowers cholesterol levels. Soluble fiber found in beans, oats, flaxseed and oat bran may help lower total blood cholesterol levels by lowering low-density lipoprotein, or “bad,” cholesterol levels. Studies also have shown that high-fiber foods may have other heart-health benefits, such as reducing blood pressure and inflammation.
  • Fiber helps control blood sugar levels. In people with diabetes, fiber — particularly soluble fiber — can slow the absorption of sugar and help improve blood sugar levels. A healthy diet that includes insoluble fiber may also reduce the risk of developing type 2 diabetes. 
  • Fiber aids in achieving healthy weight. High-fiber foods tend to be more filling than low-fiber foods, so you’re likely to eat less and stay satisfied longer. And high-fiber foods tend to take longer to eat and to be less “energy dense,” which means they have fewer calories for the same volume of food. 
  • And finally, fiber helps you live longer. Studies suggest that increasing your dietary fiber intake — especially cereal fiber — is associated with a reduced risk of dying from cardiovascular disease and all cancers.

 

You can get fiber from:

  • Whole-grain products
  • Fruits
  • Vegetables
  • Beans, peas and other legumes
  • Nuts and seeds

Refined or processed foods, such as canned fruits and vegetables, pulp-free juices, white breads and pastas, and non-whole-grain cereals — are lower in fiber. The grain-refining process removes the outer coat (bran) from the grain, which lowers its fiber content. Enriched foods have some of the B vitamins and iron added back after processing, but not the fiber.

Another way to get more fiber is to eat foods, such as cereal, granola bars, yogurt and ice cream, with fiber added. The added fiber usually is labeled as “inulin” or “chicory root.” Some people complain of gassiness after eating foods with added fiber.

However, some people may still need a fiber supplement if dietary changes aren’t sufficient or if they have certain medical conditions, such as constipation, diarrhea or irritable bowel syndrome. Check with your doctor before taking fiber supplements.

Also, drink plenty of water. Fiber works best when it absorbs water, making your stool soft and bulky.

Still have questions about fiber? We can answer them.

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