Calcium HMB Powder



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*(Documents above may vary from batch received. Click here to request batch-specific documents)

Supplement Facts & Directions

Supplement Facts

Serving Size: 1000 milligrams
Servings Per Container: Varies
Amount Per Serving % Daily Value*
HMB (as Calcium ß-hydroxy ß-methylbutyrate monohydrate) 943 mg

* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value Not Established
‡ These supplement facts may vary from the product you receive. Please call for exact numbers.

Other Ingredients: None


Free of: Added Sugar, Soy, Dairy, Yeast, Gluten, Corn & Additives.

Directions: As a dietary supplement, take 1000 mg (3/8 tsp) two to three times daily with a meal or as directed by a physician.

Warning: If you are pregnant, nursing, taking any medications or have any medical condition consult your physician before use. Keep out of reach of children.

Product Details

What is HMB Supplement?

HMB (beta-hydroxy beta-methylbutyrate) is a highly bioavailable metabolite of leucine, a branched-chain amino acid (BCAA) that is essential for protein synthesis and muscle repair. Calcium HMB is a calcium salt form of HMB that reduces muscle protein breakdown. The body can synthesize HMB while metabolizing leucine, but it does so in very small amounts. Clinical studies have shown that calcium HMB supplements can significantly reduce muscle fatigue and the catabolic breakdown of muscle tissue that accompanies strenuous exercise, intense bodybuilding workouts, or muscle trauma.

Potential HMB Benefits

Calcium HMB Supplement for Exercise Performance

HMB is a popular ergogenic supplement that enhances athleticism. Numerous studies have examined HMB’s effects on exercise performance. Clinical trials have reported that healthy adults taking HMB supplements experience improvements in muscle gain from exercise, overall strength, and lean body mass.

Calcium HMB is an anti-catabolic compound that inhibits the breakdown of muscle proteins. On a gram-per-gram basis, HMB dramatically outperforms leucine as an anti-catabolic agent. Athletes may benefit from this in several ways. For example, athletes often consume calorie-restricted diets following a bulking phase. However, the body doesn’t limit weight loss to fat. It can also target muscle tissue, but taking an anti-catabolic like calcium HMB can preserve muscle mass.

A 12-week clinical trial showed that calcium HMB improved aerobic exercise capacity and anaerobic power—the max amount of power an individual can exert when performing high-intensity workouts—compared to a placebo. Researchers also noted a reduction in body fat. A different 12-week study reported similar findings with significant increases in aerobic and anaerobic exercise capacity compared to the placebo group. Both studies focused on highly trained athletes and imply calcium HMB has the potential to improve exercise adaptation in the long term.

Calcium HMB Synergy

Calcium HMB supplement synergizes with several other supplements.

HMB + Creatine

One study found that combining HMB with creatine produced significant improvements in strength and exercise performance during high-intensity workouts.

HMB and Vitamin D

Multiple studies reported that a combination of HMB with vitamin D increased muscle strength in older adults. Some participants experienced this benefit without exercising.

Calcium HMB Supplement for Muscle Damage and Recovery

Athletes and fitness enthusiasts put their bodies through a lot to gain muscle. Muscle injuries, although unwanted, are common. Muscle soreness is also typical following intense exercise. Scientific studies show that HMB supplements dramatically reduce muscle damage markers and promote better recovery. They also reduce markers of inflammation.

Potential HMB Side Effects

HMB supplements are likely safe for most individuals, as HMB is a metabolite of leucine—an essential amino acid that the body needs to sustain life. Rarely, some people may experience HMB side effects like constipation, stomachache, or itching.


Tested by Accredited 3rd Party Labs

PureBulk's supplements are tested by accredited third party labs in the USA to ensure their identity, purity and potency. To receive a copy of these test results or any other PureBulk supplement please fill out the COA request form found here.

*NOTE: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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