Does Pre-Workout Work? Ingredients, Benefits and Risks
Does pre-workout work? It can, depending on its ingredients and doses. Learn what research says about caffeine, creatine, beta-alanine, citrulline, benefits and risks.
Fitness
Nutrition related to exercise and body composition.
11 articles
How Many Steps a Day Do We Really Need for Better Health?
You don't necessarily need 10,000 steps a day. Learn what research says about 4,000, 7,000 and 10,000 daily steps and how to choose a realistic target.
Does Fasted Training Burn More Fat? What the Evidence Shows
Fasted exercise can increase fat oxidation during a workout, but that does not necessarily mean greater body-fat loss. Here's what the evidence actually shows.
Strength Training vs Cardio: Which Is Better for Health and Weight Loss?
Cardio or strength training for weight loss? Learn what the evidence says about fat loss, muscle preservation, fitness, and overall health.
Do BCAAs Help Build Muscle? What the Evidence Says
BCAAs can stimulate muscle protein synthesis, but do they actually increase muscle growth? See what current evidence says and whether supplementation is worthwhile.
Beta-Alanine: What It Does and Who May Benefit
Learn what beta-alanine does, how it increases muscle carnosine, which workouts may benefit, the doses studied, and why the supplement can cause tingling.
Does Beetroot Improve Exercise Performance? What Science Says
Beetroot is rich in nitrate, which may produce small performance gains in certain types of exercise. Learn how it works, effective doses, timing and limitations.
Does Caffeine Improve Workout Performance? What Studies Show
Caffeine can improve strength, power and endurance, but responses vary. See what research says about effective doses, timing, benefits and possible downsides.
Does Citrulline Malate Improve Exercise Performance?
Citrulline malate may provide small performance benefits in some workouts, particularly muscular endurance. Learn what the evidence says about dosage, strength, fatigue, and safety.
Whey Protein: What Is It For and Who Actually Needs It?
Whey protein is a convenient source of high-quality protein, but it is not required to build muscle. Learn when it helps, how much may be useful, and who actually needs it.
Creatine: what does the science really say?
One of the most studied supplements in the world, with solid evidence for strength and performance — and a list of myths that should have been retired years ago.
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