A UK study has found that, while vitamin D is essential for good bone health, there is no evidence for for claims of some of its other benefits, including combating heart disease and cancer.
Vitamin D is made by the body when skin is exposed to UV, and can also be found in some forms of food. For a roundup of expert comment gathered by the SMC on the study, see here.
An excerpt: (read in full here)
“The study says that for most people, sunlight is the most important source of Vitamin D, and it notes enough can be created long before people start to get sunburn.
“It does not say how long people should go into the sun, but says for most, a few minutes in the middle of the day should be enough.”