Coffee & Health
Evidence-based answers on coffee’s benefits and downsides — empty stomach, pre-workout, black coffee, and more.
Coffee is one of the most-studied things people consume, and the overall picture is reassuring: moderate intake is linked with several health benefits in large observational studies. But the details — timing, dose, and how you drink it — matter.
These guides stick to the evidence. We look at what the research actually says about coffee on an empty stomach, black coffee, and using caffeine before exercise, and we cite our sources so you can check them.
3 articles in “Coffee & Health”

Does Coffee Dehydrate You? What the Research Says
Moderate coffee drinking does not cause net dehydration. Caffeine is mildly diuretic, but the water in your cup more than compensates. Here’s what the studies actually show.

Coffee Before a Workout: Does It Actually Help?
Yes. 3–6 mg of caffeine per kg of body weight, taken 30–60 minutes before exercise, is one of the most evidence-backed performance boosters available. Here’s the science and the dose.

Is It Bad to Drink Coffee on an Empty Stomach?
For most people, coffee on an empty stomach is fine. It does increase gastric acid, but research doesn’t link it to ulcers or lasting damage. Here’s what the evidence actually says.
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