Final answer:
Too much vitamin D can lead to a buildup of calcium in the body, potentially causing hypercalcemia and related health issues.
Step-by-step explanation:
Excessive intake of vitamin D can lead to a buildup of calcium in the body. Vitamin D is important for calcium absorption in the digestive tract and for maintaining normal serum concentrations of calcium and phosphate, which are crucial for bone health and other physiological functions. Over-consumption of vitamin D can cause hypercalcemia – a condition characterized by abnormally high levels of calcium in the blood, which can lead to various health problems such as kidney stones, cardiovascular issues, and bone pain.