A–Z Glossary

25-Hydroxyvitamin D test

A 25-hydroxyvitamin D test is a blood test measuring the main circulating form of vitamin D to assess vitamin D status.

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Calcium and vitamin D intake for pregnancy health

Calcium and vitamin D intake for pregnancy health

Why calcium and vitamin D matter in pregnancy Calcium is the most abundant mineral in the body and is essential for bone structure, muscle contraction, nerve conduction, blood clotting, and intracellular signaling. During pregnancy, calcium transfer to the fetus increases, particularly in the third trimester when fetal skeletal mineralization is most active. Maternal physiology adapts […]