Medically reviewed by Karina Tolentino, RD Key Takeaways Pre-workout supplements often contain caffeine and amino acids to ...
If you’ve trained your social-media algorithms to serve you even a little bit of fitness content, scrolling your TikTok feed might feel like wandering the aisles of a vitamin store. Workout vlogs ...
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 supplements are associated with side effects like digestive issues, water retention, and headaches. Adjusting your dosage or avoiding supplements with certain ingredients may help. To ...