Low-Dose Lemon Myrtle Extract Boosts Muscle Growth in Older Adults

Age-related muscle loss threatens independence and quality of life in older adults, making effective interventions crucial for healthy aging. This study investigated whether a reduced dose of lemon myrtle extract could enhance muscle building in seniors.

Researchers conducted a 12-week randomized, double-blind trial with 60 Japanese adults aged 65 and older who reported declining muscle strength. Half received 125mg daily lemon myrtle extract while the other half took placebo. Both groups performed identical bodyweight resistance training twice weekly.

The lemon myrtle group achieved significantly greater increases in anterior thigh muscle thickness compared to placebo. This occurred despite using only half the previously studied dose of 250mg daily, suggesting the supplement's muscle-building effects may be achievable at lower concentrations when combined with appropriate exercise.

However, during a subsequent 6-week detraining period, the lemon myrtle group lost their muscle gains at similar rates to the placebo group, indicating the supplement doesn't preserve muscle mass without continued exercise.

These findings suggest lemon myrtle extract could be a valuable tool for combating sarcopenia when combined with resistance training. The ability to achieve benefits at a lower dose may improve cost-effectiveness and reduce potential side effects. For longevity-focused individuals, this research supports the synergistic approach of combining targeted supplementation with consistent strength training to maintain muscle mass with aging, though it emphasizes that exercise remains non-negotiable for long-term muscle preservation.