The Claim

In physically active older adults, six weeks of co-supplementation with creatine (3 g/day) and HMB (3 g/day) combined with integral physical conditioning does not produce statistically significant within-group increases in fat-free mass, skeletal muscle mass, or appendicular lean mass, although numerical trends favor the supplement group.

Source: Combined creatine and HMB co-supplementation improves functional strength independent of muscle mass in physically active older adults: a randomized crossover trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
75score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Description
1 study reviewed
In plain English

Supplementing with creatine and HMB for six weeks while doing physical conditioning does not significantly increase muscle mass in active older adults. The results showed a small trend toward more muscle in the supplement group, but it was not enough to rule out chance.

See the scientific wording

Six weeks of creatine (3 g/day) and HMB (3 g/day) co-supplementation, combined with integral physical conditioning, does not produce statistically significant within-group increases in muscle mass (fat-free mass, skeletal muscle mass, or appendicular lean mass) in physically active older adults, although numerical trends favor the supplement group.

Why this might work

The body uses creatine and HMB supplements to improve muscle cell energy and reduce muscle breakdown. When combined with exercise, this boosts the brain's ability to activate muscles more efficiently, improving strength without needing to build much new muscle tissue.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Combined creatine and HMB co-supplementation improves functional strength independent of muscle mass in physically active older adults: a randomized crossover trial

    The study found that taking creatine and HMB for six weeks while exercising didn't cause a statistically significant increase in muscle size in active older adults, but there was a small positive trend, just as the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.