Metabolism Basics

Does fish oil really shrink visceral belly fat? Here’s what randomized trials actually found — and what they didn’t.

Your smart scale says your metabolic age is 48 at 35 years old. Here’s what that number really measures, how reliable it is, and what actually moves it.

Creatine does increase body water — that part’s true. Whether it’s the “bloat” people fear is a different question. Here’s what the trials show.

A specific probiotic strain reduced visceral fat area by about 8% in a 210-person Japanese trial. Here’s what that study actually showed, and what a newer meta-analysis adds.

A 2025 meta-analysis of 11 trials tested alpha-lipoic acid against blood sugar, cholesterol and insulin resistance markers in overweight adults. Here’s what it found — and didn’t.

NEAT can account for huge differences in daily calorie burn between two people of the same size. Here’s the science and how to raise yours.

A viral 2023 study linked taurine to longevity. Here’s what 25 human trials actually show about taurine, metabolism, and aging.

GLP-1 drugs like Ozempic and Zepbound can cost you muscle, not just fat. Here’s what 2026 trials show actually prevents it.

Reverse dieting promises to repair your metabolism after a diet. The first randomized trial says otherwise. Here’s what actually works.

Insulin resistance and metabolism are closely linked. Discover 7 science-backed ways to improve insulin sensitivity and support healthy metabolism.