Vitamin D deficiency
Vitamin D deficiency is widespread in the UK.
In children, severe vitamin D deficiency can result in a child developing rickets.
For adults, vitamin D deficiency can lead to a condition called osteomalacia, where your bones become softened.
Vitamin D is so common in the UK, the NHS advises all people living in Britain over the age of four to take a vitamin D supplement during the winter months.
This is because the sunlight in Britain over the winter is not strong enough for us to create enough vitamin D and it’s difficult to get all the vitamin D you need from diet alone.
source: express.co.uk