Euhydration, hyperhydration, hypohydration — what they mean, why a 2% loss of body mass already hurts performance, and two simple ways to check your hydration: urine colour and the scale.

Saturated, unsaturated, mono, poly, cis, trans — the labels are confusing, but the science is clearer than the headlines. Which fats to lean on, which to limit, and why dairy complicates the picture.

Protein sells. Carbs win races. But dietary fat — quietly essential for cell membranes, hormones, and fat-soluble vitamins — barely gets a seat at the table. Here is why, and why that matters.

Not all carbs behave the same way inside your body. Here is how simple and complex carbohydrates work, why fiber changes everything, and when each type actually earns its place on your plate.