Oct 16, 2025

What happens when you eat too much fibre?

Aanya Mehta

Bloating and Gas

Excess fibre ferments in the gut, leading to bloating, gas, and abdominal discomfort, especially if your water intake is low.

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Reduced Appetite and Fatigue

Fibre makes you feel full for longer, but too much can suppress appetite and energy levels, leading to fatigue or unintended weight loss.

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Constipation

Too much insoluble fiber can cause constipation, while excessive soluble fibre may trigger loose stools or diarrhea.

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Dehydration Risk

Fiber absorbs water in your intestines. Without enough fluid intake, this can cause dehydration and make bowel movements harder.

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Nutrient Absorption

High fibre levels can bind to minerals like iron, calcium, and zinc, reducing their absorption and potentially causing deficiencies over time.

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Stomach Cramps

A sudden fibre increase can overwhelm your digestive system, causing cramps, pain, and feelings of heaviness.

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Balance is the Key

Don’t cut out fibre, just balance it! Combine high-fiber foods with enough water, fruits, and protein. Moderation helps your gut stay healthy and happy.

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How much fibre is too much?

Adults need about 25 to 35 grams of fibre daily. Going beyond 50 grams regularly can lead to digestive problems. Always increase fibre gradually and stay hydrated.

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