HMB: Protecting against Age-related Muscle Loss

Physionic

Sep 29, 2025

Episode description

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0:00 - Introduction
0:31 - HMB
2:21 - Is it Worthwhile to Supplement?
4:20 - Context Matters
5:05 - Better than other Supplements? Leucine, Protein?
5:59 - Type of HMB Matters..
6:18 - Main Points

References
[Study 520] Li N, Chen S, He Y, Chen Y, Duan X, He W, Wang Q, Liu S, Liu T, Fang H. Effects of oral supplementation of β-hydroxy-β-methylbutyrate on muscle mass and strength in individuals over the age of 50: a meta-analysis. Front Nutr. 2025;12:1522287. doi:10.3389/fnut.2025.1522287.
Funding/Conflicts: Public Funding: Ministry of Science and Technology of the People’s Republic of China (grant 2022YFF1100605); Non-Profit Funding: Chinese Institute of Food Science and Technology (grant 2022-F01); Industry Funding: none reported// Conflicts of Interest: authors state no commercial or financial relationships that could be construed as a potential conflict of interest.

[Study 521] Feng Y, Chen P, Li T, Wan P, Shi R. Effects of exercise with or without β-hydroxy-β-methylbutyrate supplementation on muscle mass, muscle strength, and physical performance in patients with sarcopenia: a systematic review and meta-analysis. Front Nutr. 2024;11:1460133. doi:10.3389/fnut.2024.1460133.

Funding/Conflicts: Public Funding: National Natural Science Foundation of China (32171136); Natural Science Foundation of Shanghai (19ZR1452900); Key R&D Project of the Ministry of Science and Technology (2020YFC2005604); Shanghai Frontiers Science Research Base of Exercise and Metabolic Health; Research and Innovation Grant for Graduate Students, Shanghai University of Sport (YJSCX-2024-021); Non-Profit Funding: none reported; Industry Funding: none reported // Conflicts of Interest: authors declare the research was conducted in the absence of commercial or financial relationships that could be construed as a potential conflict of interest.

[A] Rathmacher JA, Pitchford LM, Stout JR, et al. International society of sports nutrition position stand: β-hydroxy-β-methylbutyrate (HMB). J Int Soc Sports Nutr. 2025;22(1):2434734. doi:10.1080/15502783.2024.2434734

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#HMB #sarcopenia #sarcopeniaprevention

Mindsip insights from this episode:

Pair HMB with exercise to prevent muscle loss

Despite being thought to prevent passive muscle loss, HMB is ineffective if it is not paired with exercise.

#exercise

#supplement

Address bias in HMB research by including negative studies

The current analysis of HMB may be overly positive because it failed to include an unbiased database where unpublished studies with negative results are stored.

#research

Utilize 3 grams of HMB daily for optimal effectiveness

The most effective studies on HMB use a dose of 3 grams per day, as lower doses show reduced effectiveness.

#dosage

Choose creatine over HMB for effective supplementation in older adults

The speaker suggests that creatine has better evidence behind it than HMB as a supplement for older individuals.

#creatine

#supplement

Manage expectations for HMB effects on muscle growth

While HMB is effective at improving muscle and strength in older adults, it will not produce massive, Schwarzenegger-like results.

#muscle

#supplement

Choose free HMB for better absorption

Some reviews indicate that free HMB may be superior to the more common calcium-bound HMB because it is more readily absorbed.

#supplement

Investigate HMB's effectiveness compared to muscle-promoting proteins

We don't know if HMB is uniquely effective because studies compare it to a placebo rather than other muscle-promoting molecules like leucine-rich proteins.