You might not have given your vitamin D intake much thought, but this essential nutrient is hard at work in your body right now. It supports healthy bones, helps to maintain brain function and even activates your immune defences. Most vitamin D is produced in our bodies, which transform the sun's UV rays into vitamin D3. When bright sunlight is scarce, it's especially important to load our diets with vitamin D–rich foods, whether they're naturally high in the nutrient or have been fortified.

Want to give your vitamin D levels a boost? Click or scroll through our gallery to discover the sunshine foods you should add to your diet.