Vit.O.Best Hmb 1000 is a sports supplement in capsule form containing HMB (beta-hydroxy-beta-methylbutyrate). HMB is a metabolite of the amino acid leucine which is used to enhance athletic performance and promote muscle recovery. This product is mainly used by athletes and people who perform intense workouts, as it helps to reduce muscle damage, increase strength and endurance, and speed recovery after exercise.