Creatine vs HMB: which to choose and for whom

Creatine and HMB both promise to support muscle, but they suit different people. The editorial team examined typical profiles — from a strength athlete to a person recovering from injury — and explained who will get real benefit from which supplement and who would do better to save their money.

Where to begin the choice

The question «creatine or HMB» usually arises when a person wants to support their strength training and has a limited budget. To answer honestly, you first need to define the goal, level of training, age, and sport. The very same supplement can be an excellent choice for one person and almost useless for another.

The basic principle the editorial team follows: first choose products with the best ratio of evidence, safety, and price. By these criteria, creatine monohydrate leads for most strength athletes. HMB makes sense to consider when preserving muscle, rather than boosting performance, comes to the fore.

It is also important to remember the foundation: no supplement compensates for insufficient protein intake, sleep deprivation, or chaotic training. Both substances give the best result only against a background of adequate nutrition and progressive loading.

Below we look at typical profiles of people and explain what we would advise each of them and why. The diagram in the figure summarizes the logic of the choice.

Whom creatine suits better

Strength athletes and bodybuilders.For those who train with weights regularly, creatine is the obvious first choice. It increases the number of quality repetitions and, over time, strength and muscle mass. The effect is confirmed in both beginners and experienced athletes.

Team sports and sprinting.Football, hockey, basketball, combat sports with repeated explosive actions — these are precisely the situations where the creatine phosphate buffer works best. Creatine helps maintain power across a series of short accelerations.

Vegetarians and vegans.Since creatine comes from food mainly in meat and fish, in people on a plant-based diet the intramuscular stores are usually lower. That is why their response to the supplement is often more pronounced.

Older people.Combined with strength exercise, creatine helps preserve muscle mass and strength, which is important for preventing sarcopenia. Reviews by Candow and colleagues also consider a possible effect on bone tissue, although there are fewer data here.

• Typical maintenance dose: 3–5 g per day every day, at any convenient time.
• A loading phase (about 20 g/day, split into 4 doses, 5–7 days) is not mandatory — it merely speeds up saturation.
• Form: creatine monohydrate; preferably with independent quality certification.

For whom it makes sense to consider HMB

Beginners at the start of training.It is precisely in untrained people that studies most often showed a reduction in markers of muscle damage and a moderate gain in strength. Still, even for them creatine usually gives more for less money, so HMB here is more of an addition.

Older people and periods of immobilization.The most interesting data for HMB concern preserving muscle during bed rest. In the study by Deutz and colleagues in 2013, HMB reduced the loss of «lean» mass in older people over 10 days of bed rest. Such situations — including recovery after injury — are the most logical niche for HMB.

Periods of severe calorie deficit.Theoretically, the anti-catabolic action of HMB should help preserve muscle during a «cut». However, there is as yet no convincing evidence of benefit in trained people who consume enough protein.

In practice, studies most often used 3 g of HMB per day (about 38 mg per kilogram of body weight), split into 2–3 doses. The effect, if there is one, develops over several weeks.

Comparison by profile

To make the choice easier, we have summarized our conclusions in a table. The assessments reflect the editorial team's position based on current reviews and are not clinical recommendations.

Separately about weight-class athletes: at the start of intake creatine often increases body weight by 1–2 kg due to water retention in the muscles. For boxers or weightlifters before competition this may be undesirable. HMB has no such effect, but that does not yet make it a more effective alternative.

For endurance sports, neither of the two supplements is a priority. Creatine may be useful in finishing sprints or during strength preparation, but the main contribution to the result there comes from other nutrition strategies.

If, however, the budget allows and the goal is maximum muscle preservation during a difficult period, a combination of creatine, sufficient protein, and HMB is theoretically possible. That said, the additional benefit of HMB in such a combination is poorly proven.

Mistakes in choosing and how to avoid them

The first common mistake is buying «premium» forms of creatine at a high price. Comparative studies have shown no advantage of the hydrochloride, ethyl ester, or buffered forms over ordinary monohydrate, and the ethyl ester was even inferior to it.

The second mistake is expecting a quick effect from HMB. Unlike creatine, there are no noticeable changes in the first few days, and in a trained person there may be no visible result at all. Treating HMB as a «legal alternative to anabolics» is a marketing exaggeration.

The third is irregular intake. Creatine works through saturation of the muscles, so skipping weeks nullifies the effect. In studies HMB was also taken daily over a long period.

The fourth is ignoring quality. Choose products with independent testing (for example, Informed Sport or NSF Certified for Sport), especially if you are an athlete subject to doping control. People with kidney disease should coordinate any supplement with a doctor.

Editorial conclusions

For most people who train for strength, muscle mass, or explosive power, the first choice is creatine monohydrate: it is cheap, safe, and has convincing evidence.

HMB is appropriate in narrower situations — for beginners, older people, during immobilization, or recovery after injury, when the main task is to preserve muscle.

Neither supplement replaces protein in the diet, sleep, and a well-thought-out training program. Supplements are an «add-on», not the foundation.

Read also our articles on the creatine loading phase, on protein for older people, and on nutrition during recovery from injury.

References

1. Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18.
2. Wilson JM, Fitschen PJ, Campbell B, et al. International Society of Sports Nutrition Position Stand: beta-hydroxy-beta-methylbutyrate (HMB). J Int Soc Sports Nutr. 2013;10(1):6.
3. Maughan RJ, Burke LM, Dvorak J, et al. IOC consensus statement: dietary supplements and the high-performance athlete. Br J Sports Med. 2018;52(7):439–455.
4. Rowlands DS, Thomson JS. Effects of beta-hydroxy-beta-methylbutyrate supplementation during resistance training on strength, body composition, and muscle damage in trained and untrained young men: a meta-analysis. J Strength Cond Res. 2009;23(3):836–846.
5. Deutz NE, Pereira SL, Hays NP, et al. Effect of β-hydroxy-β-methylbutyrate (HMB) on lean body mass during 10 days of bed rest in older adults. Clin Nutr. 2013;32(5):704–712.
6. Candow DG, Forbes SC, Chilibeck PD, et al. Effectiveness of creatine supplementation on aging muscle and bone: focus on falls prevention and inflammation. J Clin Med. 2019;8(4):488.