What things help reducing calcium level in blood?
Drinking plenty of water: Staying hydrated may lower blood calcium levels, and it can help prevent kidney stones too.
Hypocalcemia causes increased neuromuscular excitability by decreasing the threshold needed for the activation of neurons.
The recommended calcium intake to prevent calcium stones is 1000-1200 mg per day. If you exceed the recommended calcium intake then it could cause kidney stones.
The known side effects of calcium are constipation, loose motions, or severe abdominal pain.