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Do Calcium Supplements Cause Kidney Stones? Types & Safe Intake
Navigating the science of kidney stones: why dietary calcium reduces stone risk while unneeded high-dose pills taken without food may increase it.
By Nourish By Nutrients Editorial Team •
Updated: October 2026
Key Evidence Takeaways:
- Dietary calcium eaten with meals binds oxalates in the gut, reducing kidney stone risk.
- High-dose supplemental calcium taken without food can raise urinary calcium levels.
- Always take calcium supplements with meals and stay well hydrated.