As a health professional with expertise in nutrition and physiology, I can provide you with information on the potential side effects of excessive calcium intake in the body. Excessive calcium intake can lead to a variety of health issues, including: 1. Kidney Stones: One of the most common issues is the formation of calcium-containing kidney stones, which can cause severe pain and potential urinary tract blockages. 2. Impaired Renal Function: High levels of calcium can lead to a decline in kidney function over time, potentially leading to chronic kidney disease. 3. Cardiovascular Problems: There is evidence that too much calcium may contribute to an increased risk of heart-related issues, such as atherosclerosis, which is the hardening of the arteries. 4. Bone Deterioration: Ironically, while calcium is essential for bone health, too much can actually lead to bone deterioration due to the leaching of calcium from the bones, making them more brittle and prone to fractures. 5. Electrolyte Imbalances: Excessive calcium can disrupt the balance of other minerals in the body, such as magnesium and potassium, which are also crucial for proper muscle and nerve function. 6. Constipation and Digestive Issues: High calcium intake can cause constipation and other digestive problems, as it can affect the normal gut motility. 7. Dehydration: Calcium supplementation can sometimes lead to dehydration, especially if it is not accompanied by adequate fluid intake. 8. Calcium Deposits in Soft Tissues: Excessive calcium can lead to calcification in soft tissues, such as the heart, blood vessels, and kidneys, which can be harmful. 9. Hypercalcemia: A condition characterized by abnormally high levels of calcium in the blood, which can cause symptoms like fatigue, weakness, and confusion. It's important to note that the tolerable upper intake level (UL) for calcium varies by age and can be different for men and women. It's always best to consult with a healthcare provider before significantly increasing your calcium intake. read more >>

(Don't take potassium supplements unless a doctor has prescribed them.) Taking too much calcium (three to four times the usual dose) can lead to such side effects as constipation, dry mouth, a continuing headache, increased thirst, irritability, loss of appetite, depression, a metallic taste in the mouth, and fatigue.read more >>