In the most severe cases, too much vitamin D can lead to bone pain, as well as issues with your kidneys and heart.
If you start feeling unwell, and suspect you might have taken too much vitamin D, stop taking your supplements and book an appointment with your doctor to get checked out.
How much vitamin D should you take?
The NHS recommended taking a supplement containing 10 micrograms of vitamin D every day from October to March if you live in Britain.
Read the label on your supplements, and follow the instructions for use, including how many to take and how often.