National Institute for Health and Care Excellence [80] and Public Health England [76]
Supplementation for at risk groups (i) Pregnant and breastfeeding women, particularly young women. (ii) People over 65. (iii) People who have low or no exposure to the sun, for example, those who cover their skin for cultural reasons and who are housebound or confined indoors for long periods. (iv) People with darker skin, for example, people of African, African-Caribbean, or South Asian family origin.
