How Food Affects Your Gut Health: The Role of Fiber, Fermentation, and Probiotics

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Highly processed foods
Artificial sweeteners (like aspartame and sucralose)
Excess alcohol
Low-fiber diets

These can reduce microbial diversity, leading to digestive discomfort and sluggish metabolism.

Summary

A healthy gut isn’t about taking supplements — it’s about feeding the bacteria you already have. Eat a variety of fiber-rich, plant-based, and fermented foods to help your gut flourish. When your microbiome is happy, your whole body benefits — from better digestion to stronger immunity and clearer thinking.