Men over 50 often experience declining vitamin B12 absorption, leading to symptoms like leg numbness, tingling, muscle weakness, and balance issues. This deficiency can also cause restless legs and burning sensations in the feet, significantly disrupting sleep and overall quality of life. Early detection and supplementation are crucial for nerve health and well-being.source https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/vitamin-b12-deficiency-in-men-over-50-numbness-cramps-and-restless-legs-at-night/articleshow/125254106.cms