Diet for vitamin D deficiency

A diet containing vitamin D sources can help, but confirmed deficiency may also need clinician-guided treatment and follow-up. Include oily fish, egg yolk and foods fortified with vitamin D where available, and avoid taking high-dose supplements without advice.

Vitamin D helps the body absorb calcium and supports bones and muscles. Dietary intake is only one source, and levels can also be affected by limited sun exposure, skin covering, absorption problems, kidney or liver conditions, and some medicines. Low vitamin D may be associated with fatigue, generalised weakness, joint pain or low mood, but these symptoms have many possible causes.

Choose oily fish such as salmon, sardines or mackerel when suitable for you. Eggs and fortified dairy or plant drinks can add smaller amounts; check the label because fortification varies. Keep meals varied with calcium-containing foods such as yoghurt or fortified alternatives. If a blood test confirms deficiency, ask which supplement, dose and duration are appropriate. Do not stack several vitamin products, because excessive intake can be harmful.

Book a medical review if you have persistent fatigue, weakness, bone or joint pain, frequent infections, or low mood, particularly when symptoms affect daily life. Seek urgent advice for severe weakness, a new inability to walk, or significant bone pain after a minor injury. A clinician can assess other causes and decide whether testing or treatment is needed.

Ask whether a vitamin D blood test is appropriate, whether another condition or medicine could contribute, which foods fit your diet, and when levels or symptoms should be reviewed. Mention pregnancy, kidney disease, liver disease or medicines that affect calcium.