Alcohol consumption and bone mineral density in older men

Area of Science:

• Gerontology
• Bone Metabolism
• Epidemiology

Background:

• Alcohol abuse is a known risk factor for fractures in men.
• The impact of moderate alcohol consumption on bone mineral density (BMD) in men remains unclear.

Purpose of the Study:

• To investigate the association between self-reported alcohol intake and BMD in a population-based cohort of men.
• To determine if moderate alcohol consumption influences bone density at the hip and spine.

Main Methods:

• Dual X-ray absorptiometry was used to measure BMD at the hip and spine.
• Men were categorized by alcohol intake: non-drinkers, drinkers, and by units/week (none, low, medium, high).
• Statistical analyses adjusted for age, weight, smoking, caffeine intake, and physical activity.

Main Results:

• Drinkers were younger, consumed less caffeine, and had fewer smoking pack-years than non-drinkers.
• Mean hip BMD was higher in drinkers versus non-drinkers before adjustments.
• After full adjustments, only the trochanter BMD remained significantly higher in drinkers, and moderate intake (1-4 units/week) showed a crude association with higher BMD at multiple sites.

Conclusions:

• Moderate alcohol consumption may be associated with slightly higher bone mineral density in older men, particularly at the trochanter.
• This association is attenuated by lifestyle factors, suggesting that moderate drinking's direct benefit on bone density may be limited.
• Further research is needed to clarify the complex relationship between alcohol intake patterns and bone health in aging men.