Kevin Kararwa Leukaemia Trust - Vitamin D has several important functions. Perhaps the most vital are regulating the absorption of calcium and phosphorus, and facilitating normal immune system function. Getting a sufficient
![MedlinePlus.gov on X: "Vitamin D helps your body absorb calcium, one of the main building blocks of bone. It also has a role in your nervous, muscle, & immune systems. You get MedlinePlus.gov on X: "Vitamin D helps your body absorb calcium, one of the main building blocks of bone. It also has a role in your nervous, muscle, & immune systems. You get](https://pbs.twimg.com/media/Ec0khcfXYAACW9e.png)
MedlinePlus.gov on X: "Vitamin D helps your body absorb calcium, one of the main building blocks of bone. It also has a role in your nervous, muscle, & immune systems. You get
![Functions of vitamin D in human body and immune system sources in food outline diagram. Labeled educational scheme with health benefits from eating ingredients and sun light vector illustration. Stock Vector Functions of vitamin D in human body and immune system sources in food outline diagram. Labeled educational scheme with health benefits from eating ingredients and sun light vector illustration. Stock Vector](https://as2.ftcdn.net/v2/jpg/05/58/39/35/1000_F_558393577_INc4SOUZAyF8SwRFiFagQUs5JjuUmnua.jpg)
Functions of vitamin D in human body and immune system sources in food outline diagram. Labeled educational scheme with health benefits from eating ingredients and sun light vector illustration. Stock Vector
![Sex differences in vitamin D metabolism, serum levels and action | British Journal of Nutrition | Cambridge Core Sex differences in vitamin D metabolism, serum levels and action | British Journal of Nutrition | Cambridge Core](https://static.cambridge.org/content/id/urn%3Acambridge.org%3Aid%3Aarticle%3AS0007114522000149/resource/name/S0007114522000149_figAb.png?pub-status=live)