Increase Fiber Intake
25 to 40 grams a day from whole food. The unglamorous lever that moves multiple risk markers at once.
What it does
One of the most under-prescribed dietary variables. It improves lipid profile, glucose regulation, satiety, and gut microbiome — usually all at once. The default Western diet sits near 15g/day; doubling that from whole foods moves several markers without any other overhaul.
Soluble fiber binds bile acids and reduces cholesterol reabsorption. Both soluble and insoluble fibers feed gut microbiota that produce short-chain fatty acids — anti-inflammatory signals affecting glucose regulation, satiety, and gut-barrier integrity.
What the evidence shows
Overall evidence strength: High certainty
Who it's for, who should skip
Anyone below ~25g/day — most people. Whole-food sources preferred; supplement only if dietary intake stalls.
Stacking & alternatives
Access & cost
Self-directed — no purchase required.
Last reviewed 27 August 2026.