Do you know what amount of vitamin d 3 is best for you?
Sources of vitamin d 3 in daily life:
Sunlight, oily fish, meat, eggs, (organic) milk, margarine enriched with vitamin D, low-fat margarine and frying products.
When does a vitamin d deficiency occur?
- If you cannot be outside for 15 to 30 minutes every day between 11 a.m. and 3 p.m., the position of the sun is optimal)
- If your hands, your arms or your head are covered when you are outside, there is insufficient skin in contact with the sun.
- If you use a sunscreen/day cream with a high protection factor (SPF) to protect your skin (after all, the cream blocks the UV rays).
- From say October to March, because then the number of sunshine hours and the intensity of UV rays in Central Europe are insufficient to produce enough vitamin D
Other causes of vitamin D deficiency:
- As you get older, because then your skin becomes thinner, which makes it less easy to make vitamin D
- If you have dark skin, because then you make less vitamin D than someone with lighter skin.
- Children during growth spurts, because then there is an extra need for vitamin D to support bone building