Why test vitamin D (25-OH)?

• Limited Sun Exposure

  If you don’t get enough sun exposure, always cover up, or have dark skin, you are at risk of vitamin D deficiency - even if you live in a hot country.

• Genetics

  Some people have genetic risk factors that reduce their absorption of vitamin D.

• Monitoring

  Monitor a low value or track over time as you make lifestyle changes or undergo treatments.

• Pregnancy

  Vitamin D is very important for maternal and foetal health. It is your baby’s sole source of vitamin D and is required for good health, particularly teeth, bones and immune function.

• 50+

  Those aged 50+ are most vulnerable to a lack of vitamin D. Synthesis of vitamin D decreases with age.

• Medications

  You take a drug, such as hydrocortisone or antacids, which increases the need for Vitamin D.