Microbiome nutrition focuses on what reaches the gut. Fiber, resistant starch, and certain plant compounds aren’t fully digested in your small intestine, so gut microbes use them as fuel.
As microbes break down these foods, they produce metabolites like short-chain fatty acids. These compounds can support the gut lining, help regulate inflammation, and improve how your body processes nutrients.
Over time, your food choices shape which microbes become more common. A more balanced community can support digestion and metabolic signals that affect your day-to-day energy.