Getting enough vitamin D may protect you against the flu, a study has suggested.
Vitamin D, often called the “sunshine vitamin” because it is made by the body using sunlight, is found in food such as oily fish, red meat, and egg yolks.
Getting enough vitamin D may protect you against the flu, a study has suggested.
Vitamin D, often called the “sunshine vitamin” because it is made by the body using sunlight, is found in food such as oily fish, red meat, and egg yolks.