Nutrition
Alpha Diversity
Alpha diversity is microbial species richness in your gut—supported by many plant types, varied fiber, and consistent fermented foods over restriction fads.
Alpha diversity measures how many different microbial species thrive within one person’s gut—higher richness often correlates with resilient digestion and metabolic health in research, though tests vary by lab. Eating thirty-plus plant types per week, varied fiber, and fermented foods supports richness more than one daily yogurt.
Sudden restriction diets can shrink diversity.
Common questions
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Do you need a stool test to improve alpha diversity?
No—food patterns drive change for most people. Microbiome tests can inform curiosity but should not replace gradual fiber ramps and symptom tracking.
Related terms
Put Alpha Diversity into practice
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