Gut, Metabolism and Nutrition

A viral study links ADHD to serious gut trouble, but the scariest numbers come from children. What actually holds up for adults, and the big open question.

A real trial found keto beat other diets on liver and blood sugar at equal weight loss. Why the fine print (42 healthy-heart people) shrinks the headline.

Histamine does more than cause allergies. It runs your stomach acid, your alertness, and your defenses. When does too much become a problem?

A 2026 American Heart Association statement puts coffee's safe ceiling at 400mg a day for most adults. But energy drinks don't get the same pass.

Fibermaxxing is all over your feed, but doing it right is more complicated than it sounds. Too much too fast, and bloating can become a real threat.

Insulin resistance can build silently for years before bloodwork catches it. Here's what it actually is, how it's spotted, and what shifts the odds.

Normal test results but still have stomach pain? Functional dyspepsia could be why. It's a diagnosis for real upper-GI symptoms with no structural cause.

GLP-1 medications explained: how they work, real trade-offs, side effects, bone and muscle loss, cost, and what the science still doesn't know.