Collagen powders, capsules, or drinks — which form works best? Compare the benefits, costs, and effectiveness of collagen supplements for healthier joints and skin.

Postbiotics are more than probiotic "waste," they're actually beneficial for your body, and you can get them from many of the foods that keep your gut bacteria healthy.

It’s been used for centuries as a medicinal resin, long before ‘gut health’ was a buzzword — but studies now back up its benefits.

"I recommend omega-3-rich fish, such as salmon, mackerel and sardines," says Church. "These fish are high in ...