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Sunday, July 25, 2021

ALL ABOUT VITAMIN D






  • Vitamin D helps regulate the amount of calcium and phosphate in the body.

    These nutrients are needed to keep bones, teeth and muscles healthy.

    A lack of vitamin D can lead to bone deformities such as rickets in children, and bone pain caused by a condition called osteomalacia in adults.

Good sources of vitamin D

  • From about late March/early April to the end of September, most people should be able to make all the vitamin D they need from sunlight.

    The body creates vitamin D from direct sunlight on the skin when outdoors.

    But between October and early March we do not make enough vitamin D from sunlight. Read more about vitamin D and sunlight.

    Vitamin D is also found in a small number of foods.

    Sources include:

    • oily fish – such as salmon, sardines, herring and mackerel
    • red meat
    • liver
    • egg yolks
    • fortified foods – such as some fat spreads and breakfast cereals

    Another source of vitamin D is dietary supplements.

    In the UK, cows' milk is generally not a good source of vitamin D because it is not fortified, as it is in some other countries.

How much vitamin D do I need?

  • From about late March/early April to the end of September, the majority of people should be able to make all the vitamin D they need from sunlight on their skin.

    Children from the age of 1 year and adults need 10 micrograms of vitamin D a day. This includes pregnant and breastfeeding women, and people at risk of vitamin D deficiency.

    Babies up to the age of 1 year need 8.5 to 10 micrograms of vitamin D a day.

    A microgram is 1,000 times smaller than a milligram (mg). The word microgram is sometimes written with the Greek symbol μ followed by the letter g (μg).

    Sometimes the amount of vitamin D is expressed as International Units (IU). 1 microgram of vitamin D is equal to 40 IU. So 10 micrograms of vitamin D is equal to 400 IU. 
  • Between late March/early April to the end of September, most people can make all the vitamin D they need through sunlight on their skin and from a balanced diet.
  • Some people will not make enough vitamin D from sunlight because they have very little or no sunshine exposure.







  • The Department of Health and Social Care recommends that you take a daily supplement containing 10 micrograms of vitamin D throughout the year if you:

    • are not often outdoors – for example, if you're frail or housebound
    • are in an institution like a care home
    • usually wear clothes that cover up most of your skin when outdoors

    If you have dark skin – for example you have an African, African-Caribbean or south Asian background – you may also not make enough vitamin D from sunlight.

    You should consider taking a daily supplement containing 10 micrograms of vitamin D throughout the year.

  • If you choose to take vitamin D supplements, 10 micrograms a day will be enough for most people.

  • Taking too many vitamin D supplements over a long period of time can cause too much calcium to build up in the body (hypercalcaemia). This can weaken the bones and damage the kidneys and the heart

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