What is vitamin D?
Vitamin D helps to regulate the amount of calcium and phosphate in your body.
This vitamin is needed to keep your bones, teeth and muscles healthy.
A lack of vitamin D can lead to bone deformities in children.
Bone pain caused by a lack of vitamin D is called osteomalacia in adults.
The body creates vitamin D from direct sunlight on the skin when outdoors.
However, during the winter months, people are unable to get sufficient levels of vitamin D from sunlight.
Instead, people can top up their vitamin D levels from a small number of food sources including:
- Oily fish such as salmon, sardines, herring and mackerel
- Red meat
- Liver
- Egg yolks
- Fortified foods