Prebiotic and probiotic get used interchangeably, but they're not the same thing. Here's what inulin actually does for your gut — and why the first week can bring some bloating.

Stiff joints and 'creakier than I used to be' mornings send most people straight to turmeric. Here's why plain turmeric usually doesn't do much — and what curcumin, ginger and a specific absorption booster actually change.