Recent research has found that about sixty percent of the population are deficient in vitamin D. Vitamin D is important for the absorption of calcium and so is needed for strong bones. It is also important for healthy muscles and eyes. Normally, our body takes in Vitamin D in the form of sunlight through the skin. But if you spend a lot of time indoors or live in the Northern hemisphere, your exposure to the sun may be limited.
The only way to know for sure is to get your blood tested for vitamin D level and you can do that by asking your doctor. The main source of vitamin D is sunlight, but it’s not impossible to get more in your diet. This video tells you about 5 foods you can eat to get this essential nutrient.