How many ounces of water should be consumed 2 hours before exercise?

• A. 14-20 oz
• B. 4-8 oz
• C. 16 oz
• D. 32 oz

Answer: (A)

Hydration before exercise should start you in a good, hydrated state while avoiding stomach fullness during activity. Drinking about 14–20 oz of water roughly two hours beforehand strikes a practical balance: it provides enough fluid to begin with, allows time for absorption and any excess to be processed, and reduces the chance of GI discomfort once you start moving. Too little fluid (the smaller amounts) won’t meaningfully impact your hydration status, and too much (like 32 oz) can cause fullness or bathroom breaks during the workout. A fixed 16 oz is reasonable for some, but the range accommodates individual differences in body size, sweat rate, and environment, making 14–20 oz the best-fit recommendation for two hours before exercise.