A high-protein diet may be the go-to for weight loss and muscle building, but there’s one crucial nutrient that often gets left behind.
Fiber is often neglected in protein-heavy diets
When people increase their protein intake, they often reduce foods rich in fiber. That means fruits, vegetables, and whole grains get sidelined, disrupting dietary balance.
Most Americans don’t get enough fiber
Only 5 % of men and 9 % of women meet the daily fiber recommendation.
The average intake is around 15 grams a day - far below the recommended 25 grams for women and 38 grams for men.
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Fiber is essential for digestion
Although your body can’t digest fiber, it plays a vital role in digestive health.
It keeps your bowels regular and helps your digestive system function smoothly - especially important when you're eating a meat-heavy diet.
High fiber intake may prevent chronic disease
Studies suggest fiber may lower the risk of type 2 diabetes and colon cancer.
It may work by binding to cancer-causing agents in your intestines and helping flush them out of your system.
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Your gut bacteria rely on fiber to thrive
Your gut microbiome - the community of microbes in your digestive tract - needs fiber to function properly.
Without enough, your microbiome can fall into imbalance, increasing the risk of chronic illness.
Fiber helps produce cancer-fighting compounds
When gut bacteria ferment fiber, they produce butyrate, a short-chain fatty acid with potential anti-cancer properties.
It may inhibit tumor growth and promote cancer cell death.
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There are two types of fiber, and you need both
Soluble fiber (found in lentils, beans, and seeds) slows digestion by forming a gel.
Insoluble fiber (from vegetables and whole grains) acts like a broom, sweeping your gut clean. Each type has unique benefits.
Some types of fiber are easier on sensitive stomachs
If you struggle with loose stools or IBS, soluble fiber is usually easier to tolerate.
Insoluble fiber can sometimes aggravate symptoms, so knowing the difference matters.
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Nature offers excellent sources of fiber and protein
Lentils, nuts, seeds, fruits, and vegetables are rich in both fiber and protein.
A single serving of lentils has about 15 grams of each, making it a perfect option for balanced nutrition.
Increase fiber slowly
Jumping into high fiber too quickly can lead to bloating or gas.
Experts recommend adding 3–5 grams of fiber per day and staying well hydrated to help your body adjust.
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This article is based on information from NBC News.