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NOW Foods HMB - Product Review

An amino acid related product that has recently gained some decent traction in the health and fitness industry is HMB, otherwise known as Beta-hydroxy beta-methylbutyrate. A lot of acclamation has been given to the effectiveness of HMB so we will have a look at NOW Sports’ version HMB. 

About the product

HMB is a chemical by-product that your body produces once it has processed leucine. It is quite common to see that HMB is regularly used by athletes to prevent muscle breakdown during fat loss phases or even for the elderly as they suffer with higher rates of muscle protein degradation that comes as a result of age. If we look at HMB in comparison to its parent agent, leucine, HMB seems to be quite a lot stronger on a gram per gram basis than leucine. However, this effect is limited to the intervention of muscle protein breakdown and does not extend over to muscle protein synthesis.

Now the body already naturally produces HMB during its leucine ingestion process. However, several studies have noted that taking HMB as an additional supplement greatly benefits the muscles (naturally a part of this due to the additional HMB molecules as a result of supplementing).


During a bulking or muscle gaining cycle, HMB will not provide much use to any lifters. As mentioned above, the effects of HMB do not extend to building muscle nor do they aid in any strength building endeavours. So, saving this product for a shred will prove to be way more beneficial.

The story is vastly different when coming to a cutting cycle. Muscle protein breakdown is a massive threat to any lifters looking to lose a few kilograms of fat and still preserve every inch of hard-earned muscle they gained prior to the cut. HMB plays the perfect role for this pursuit. Not only does it curb the rate of muscle protein breakdown, it also aids in post workout recovery where muscle protein breakdown may exceed the rate of muscle protein breakdown.


It is recommended that users take a dose of anywhere between 1000-3000mg of HMB to get the best benefits from this product. The bottle comes in capsules of 500mgs and has 120 capsules per bottle. Use your discretion to decide how much you need within the recommended range suggested above. Obviously, the more severe your deficit, the higher up on that scale you may want to be.

Please note that taking doses higher than the recommended doses has been shown to cause damage in the kidneys so please take care not to exceed the recommended amount.


This product is 3 out 5 for me. It is a great extra addition to anyone thinking of going on a serious cutting cycle.



HMB (β-Hydroxy β-Methylbutyrate) is a clinically researched, naturally occurring metabolite of the branched-chain amino acid leucine. HMB normally plays a role in the regulation of protein breakdown in the body, helping to preserve lean muscle tissue. HMB therefore can help to maintain muscle strength and mass when combined with regular exercise and a healthy diet. In addition, it may help to enhance recovery from intense exercise.