Nutrex Research HMB 1000 MGHMB ( Hydroxy Methylbutyrate) is a metabolite of the amino acid Leucine. Its needed by the body to protect and repair muscle tissue. Regular consumption of HMB slows down protein breakdown and improves protein synthesis. In athletes who engage in intense weight and resistance training this has numerous benefits: lean muscle gains, greater strength output, faster recovery and overall better response to training. HMB 1000 contains 1000mg of active