As well as symptoms, a vitamin D deficiency can be confirmed by a blood test. After this, treatment will begin. Mr Kanani said patients will then be advised on what they need to do to get their levels back up to a normal level.
Mr Kanani said: “400-800 IU a day should meet the needs of most healthy people. However, if you are deficient (or do not get much sunshine), you may need to take 1,000 IU or more for a period of time.
“There is not a recommended daily amount of time you need to spend in the sun in order to meet the body’s vitamin D requirements.
“This is because there are several factors involved that vary depending on the individual, such as skin colour and how much skin you have exposed.”
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