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HYDROXYMETHYLBUTYRATE (HMB)

Other Names:

Beta-hydroxy-beta-methylbutyrate, B-Hydroxy B-Methylbutyrate Monohydreate, Beta-Hydroxy-Beta-Methylbutyric Acid, Calcium B-Hydroxy B-Methylbutyrate Monohydrate, Calcium HMB, Hidroximetilbutirato, HMB de Calcium, Hydroxyméthylbutyrate, Hydroxymet...
See All Names

HYDROXYMETHYLBUTYRATE (HMB) Overview
HYDROXYMETHYLBUTYRATE (HMB) Uses
HYDROXYMETHYLBUTYRATE (HMB) Side Effects
HYDROXYMETHYLBUTYRATE (HMB) Interactions
HYDROXYMETHYLBUTYRATE (HMB) Dosing
HYDROXYMETHYLBUTYRATE (HMB) Overview Information

Hydroxymethylbutyrate (HMB) is a chemical that is produced when the body breaks down leucine. Leucine is an amino acid, one of the building blocks of protein. People use HMB to make medicine.

HMB is used for increasing the benefits from weight training and exercise; and for treating diseases of the heart and blood vessels (cardiovascular disease), high cholesterol, and high blood pressure. In combination with the amino acids arginine and glutamine, HMB is also used for treating weight loss, weakness, and diarrhea in people with AIDS (AIDS-related wasting).

How does it work?

HMB might promote muscle growth. It seems to reduce the destructive breakdown of muscle in people with AIDS.

HYDROXYMETHYLBUTYRATE (HMB) Uses & Effectiveness What is this?

Possibly Effective for:

  • Increasing body weight and muscle in people with acquired immunodeficiency syndrome (AIDS). Taking HMB in combination with the amino acids arginine and glutamine seems to increase body weight and lean body mass in people with AIDS when used over eight weeks. This combination may also improve the way the immune system works in these people.

Insufficient Evidence for:

  • Athletic performance. There is conflicting evidence about the usefulness of HMB for weight training. Some research suggests HMB might increase muscular strength and body composition, as well as reduce muscle damage. But other research shows no effect. There is also some evidence that HMB might be more effective in people who are just beginning to train than in well-trained athletes.
  • Lowering blood pressure. Beginning research suggests that HMB can lower blood pressure.
  • Lowering high cholesterol. Beginning research suggests that HMB can lower cholesterol.
  • Diseases of the heart and blood vessels (cardiovascular disease).
  • Other conditions.
More evidence is needed to rate the effectiveness of HMB for these uses.


HYDROXYMETHYLBUTYRATE (HMB) Side Effects & Safety

HMB seems to be safe for most people when used short-term. Doses of three grams per day or less for up to eight weeks seem to be safe.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Not enough is known about the use of HMB during pregnancy and breast-feeding. Stay on the safe side and avoid use.

HYDROXYMETHYLBUTYRATE (HMB) Interactions What is this?

We currently have no information for HYDROXYMETHYLBUTYRATE (HMB) Interactions

HYDROXYMETHYLBUTYRATE (HMB) Dosing

The following doses have been studied in scientific research:

BY MOUTH:

  • For treatment of weight loss, weakness, and diarrhea related to AIDS (AIDS-related wasting): 3 grams HMB in combination with 14 grams each of arginine and glutamine in two divided doses daily.

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Conditions of Use and Important Information: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version. © Therapeutic Research Faculty 2009.

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