From strengthening bones to boosting the immune system, Vitamin D has many benefits for our overall health. That’s why it’s important to make sure your body is getting enough of it, especially in the wintertime. “One of the best ways to get vitamin D is through UV rays from the sun – something we see less of in the winter months,” explained Kristin Kirkpatrick, RD, a registered dietitian for Cleveland Clinic.

Dieticians say that many people have a vitamin D deficiency, and a simple blood test can tell you for sure. However, some warning signs of a deficiency can include fatigue, bone pain, muscle weakness, and mood changes. When it comes to getting enough of the so-called "sunshine vitamin" this winter, certain foods can help. Fatty fish like salmon, tuna, mackerel, and sardines are all good options.

Mothers who are breastfeeding should be aware that breast milk lacks the Vitamin D that their babies need to grow.