Vitamin D
VitaminVitamin D is a fat-soluble vitamin that regulates calcium and phosphorus absorption, playing a critical role in bone mineralization. It also modulates immune function, supports muscle health, and influences mood regulation through serotonin synthesis.
When Deficient
- Bone pain and increased fracture risk
- Muscle weakness and fatigue
- Depression and mood changes
- Impaired wound healing
- Frequent infections and illness
When Overdosing
- Hypercalcemia (elevated blood calcium)
- Nausea, vomiting, and poor appetite
- Kidney stones and renal damage
- Excessive thirst and frequent urination
- Confusion and disorientation
