https://timesofindia.indiatimes.com/life-style/health-fitness/health-news/6-telltale-signs-you-are-low-on-vitamin-d-and-how-to-fix-it/articleshow/116411700.cms
Vitamin D deficiency, affecting 1 in 4 US adults, can cause subtle symptoms like bone and joint pain, muscle weakness, teeth problems, hair loss, fati
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