It all starts in the brain, not in bones: The first and foremost sign of vitamin D deficiency
Contrary to popular belief, the earliest signs of vitamin D deficiency often manifest in the brain, not the bones. Mood swings, anxiety, and irritability can signal slipping vitamin D levels, as the nutrient is crucial for serotonin production. These mental and emotional symptoms appear before physical discomfort due to the brain's rapid response to nutrient deficiencies.
Contrary to popular belief, the earliest signs of vitamin D deficiency often manifest in the brain, not the bones. Mood swings, anxiety, and irritability can signal slipping vitamin D levels, as the nutrient is crucial for serotonin production. These mental and emotional symptoms appear before physical discomfort due to the brain's rapid response to nutrient deficiencies.
