New studies link vitamin D to effective T cell functioning. In other words, if you aren’t getting enough vitamin D, chances are your immunoresponse is lacking! Next time you’re sick, you should not only ensure you’re taking that vitamin C pill, but D as well.

Did you also know that in order for a muscle to contract properly, vitamin D has to be present in order for the myosin and actin myofibrils to bind to one another? In other words, with vitamin D lacking in your diet, you won’t be as strong either.

Sunshine and milk are good old sources of vitamin D, but don’t discount taking a good multi-vitamin and/or vitamin D supplementation.