Vitamin D Deficiency: It all starts in the brain, not in bones: The first and foremost sign of vitamin D deficiency |
Most people, sometimes even healthcare practitioners, think that the first signs of vitamin D deficiency are weak bones, muscle pain, and fatigue. For years, vitamin D deficiency has been closely associated with bone strength and muscle weakness. However, Dr. Eric Berg, a wellness expert, explains how the earliest signs of low vitamin D rarely appear…