Dianna Martino - Holistic Naturopath & Coach

Holistic Adelaide Naturopath

Nutrients in Pregnancy: Vitamin D

What is Vitamin D used for?

Vitamin D is utilised by the body for immunity, bone mineral density, as an antioxidant, thyroid health, ovulation, uterine support and function and hormonal balance. During pregnancy vitamin D is required for foetal development, birth weight and bone development.

Low levels of vitamin D in pregnancy are associated with:

  • Increased risk of gestational diabetes
  • Pre-eclampsia
  • Low birth weight babies
  • May hinder babies brain development, impeding mental and motor skills
  • May increase risk of asthma

Food sources of Vitamin D:

  • Fish liver oils- cod, halibut, herring, tuna (although during pregnancy choose low mercury fish and no more than twice per week)
  • Butter
  • Egg yolk (ensure cooked well during pregnancy- no runny eggs)
  • Milk

Supplementing and Dosage of Vitamin D:

Dosage of vitamin D is dependent on your blood test results. You may still be deficient in vitamin D even if you take a prenatal supplement, so the best way to know is to get a blood test. Your health practitioner can help you to determine the correct dose in order to get your vitamin D levels up to a healthy range. Sunlight is not a sufficient source of vitamin D if you are already deficient.

It is best to get your vitamin D levels healthy prior to conception, but whatever stage you are at in your antenatal journey, vitamin D can still be assessed and corrected to support both you and your baby’s health and wellness. Mother’s maternal stores of vitamin D influence baby’s vitamin D levels for months after they are born.