Only 5 Sports Supplements Actually Work

The International Olympic Committee's list of effective supplements is intentionally short, reflecting a high standard for evidence. Many other popular supplements lack robust scientific validation for performance enhancement claims. The market is saturated with products that may not deliver on their promises, making evidence-based guidance crucial for athletes. Each of the five endorsed supplements works through a distinct physiological pathway. Creatine monohydrate, for instance, helps regenerate ATP, the body's primary energy source for short, explosive movements, which increases strength and power output. Meanwhile, caffeine acts as a central nervous system stimulant, reducing the perception of effort and fatigue during endurance exercise. Nitrate, commonly found in beetroot juice, improves the body's efficiency in using oxygen, which is particularly beneficial for endurance athletes. Sodium bicarbonate and beta-alanine both help to buffer acidity in the muscles during high-intensity exercise. Sodium bicarbonate directly neutralizes acid, while beta-alanine increases muscle carnosine levels, which then acts as a buffer. For older adults with chronic diseases, nutritional needs are highly individualized. A 2024 study analyzing data from over 9,900 participants found that nutrient supplement strategies should be personalized based on an individual's specific health conditions. Calcium was the most commonly used supplement among this demographic. Recent research also points to cognitive benefits. A 2024 meta-analysis of studies involving over 5,000 participants found that daily multivitamin-mineral supplementation can slow cognitive decline in older adults, particularly improving episodic memory. This suggests that for some older individuals, targeted supplementation can play a role in maintaining brain health. However, for older adults, more isn't always better. Some studies have shown that high doses of certain antioxidant supplements may not prevent chronic diseases and could even be harmful. This underscores the importance of medical guidance before starting any supplement regimen, especially for those managing chronic health issues.