Review on Optimize Your Performance with Runner's Energy & Endurance Powder - Keto Friendly, Low Carb & Calorie - Packed with Vitamins, BCAAs, Caffeine & More - Fruit Punch Flavor - 30 Servings! by Katie Richards

I've only used this product a couple of times but so far I'm really enjoying it. Unfortunately, it was my first time using it in Ragnar Relay and I was very nervous. about possible side effects, but it worked very well! It definitely gave me a boost, but more importantly, it gave me "stamina". I was able to run with enough energy to get by without sleep and regular meals. No heart palpitations or caffeine jitters that I get with other pre-workout or energy supplements. There is no gastrointestinal disorder. It was easy on my stomach and gave me the boost I needed.