Forget the flashy packaging and long ingredient lists. When it comes to getting ready for a workout, a simple cup of coffee does the job better than most supplements. Registered dietitian and TODAY nutrition editor Natalie Rizzo puts it plainly: "Coffee is one of my favorite pre-workout drinks because it's simple, affordable, and backed by science."
Most pre-workout powders disclose 100-300 mg caffeine per scoop, but label transparency varies-some use proprietary blends that obscure exact dosages, making it harder for consumers to gauge their true intake.
Rizzo keeps her advice straightforward. She suggests drinking an 8-ounce cup of coffee-about 100 milligrams of caffeine-30 to 60 minutes before exercise. That's enough to get the benefits without going overboard. No need for energy drinks or mystery powders. Just plan ahead, sip your coffee, and give the caffeine time to kick in before you start your workout.
What about the right dose? Clinical reviews show that 3-6 mg of caffeine per kilogram of body weight, taken 30-60 minutes before exercise, is effective for most people. For a 70 kg adult, that's about 210-420 mg of caffeine-a range you can reach with coffee or a clearly labeled pre-workout, but it's easy to go over if you mix sources. The European Food Safety Authority (EFSA) recommends a single dose of no more than 200 mg and a daily maximum of 400 mg for healthy adults, so it's important to keep track of your total caffeine from all drinks and supplements. EFSA caffeine safety opinion.
Claims Check: While many pre-workout supplements market themselves as 'clean energy' or 'performance boosters,' clinical evidence consistently shows that caffeine is the primary active ingredient responsible for ergogenic effects. Higher doses do not guarantee better results and may increase side effects such as nervousness or rapid heartbeat, especially in sensitive individuals. Regulatory authorities require that caffeine content be clearly disclosed on Supplement Facts panels for consumer safety.
Supplements may promise more, but Rizzo's advice is a reminder to keep things simple. Coffee gives you the same main benefit-caffeine-without the extra cost or mystery ingredients. The science is clear, the method is easy, and you probably already have what you need at home.