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 ...

This study was approved by the Mayo Clinic Institutional Review Board. Informed consent was obtained from all patients for reviewing their medical records. Testing for CRP in serum is performed ...