These BCAAs are a must-have during a fat-loss cycle. Sitting at a caloric deficit for weeks on end can have a negative impact on your ability to recover quickly after workouts, but MTN OPS BCAAs provides clinically relevant doses of essential muscle-building amino acids coupled with glutamine and beta-alanine. Using this stuff has reduced my soreness and maintained my ability to be explosive while working out in a low calorie diet phase. Since there's no caffeine, I can sip on this stuff any time of day. I especially like this stuff because the flavor satisfies my sweet tooth while allowing me to stick to a strict diet.