Question: how much coffee should i drink before working out?
Answer: 1. Drink in moderation. Research suggests that you need to consume 4.5 to 6 milligrams of caffeine per kilogram of body weight to maximize your exercise benefits. For a 140-pound woman, that's roughly 285 to 380 milligrams, or roughly one 20-ounce to two 16-ounce cups of coffee, Fear says.