Most pre-workout supplements are considered safe for many adults, but they are not essential for health or exercise performance. Their ingredient mixes vary widely by brand. Ingredients like caffeine, ...

Pre-workout refers to dietary supplements that people can take before a workout to help maximize their training. Available as premixed drinks, powders, pills, and snack bars, manufacturers formulate ...

With hard-to-pronounce ingredients and caffeine levels that could impact your heart rate, finding a pre-workout supplements that’s both safe and effective isn’t easy. To identify the best pre-workouts ...