Vitamin D works with calcium and phosphorus for healthy bones, muscles, and teeth. You make the most vitamin D under your skin when you are outside in the middle of the day in the summer months.
You can get vitamin D from some foods including fortified foods and everyone is recommended to take a supplement, especially during autumn and winter. There are some at-risk groups who are recommended to take daily vitamin D supplements all year round. If you are concerned you are not getting enough vitamin D, speak to your doctor.
Please find more details in the attached file