Vitamin D deficiency is extraordinarily common, and most people don’t even realize they’re suffering from it.

WESTON, Fla. – A recent study shows that the number of Americans following a vegan diet has gone from a few hundred thousand to 9.7 million in the past 15 years. “People may be thinking that they’re getting enough nutrients from a vegan diet when in actuality their diet could be lacking in calcium. Calcium is an important nutrient for bone health, but some vegan sources of calcium like spinach, which is naturally very high in calcium, our body does not absorb the full amount,” she said. O’Neill said it’s important for vegans to consume calcium-enriched foods that also contain Vitamin D, which promotes calcium absorption. The study found that females have a greater reliance on fat as a fuel source during exercise than men.

Having a strong immune system is always important, but it seems to be even more so in the coronavirus pandemic. A strong immune system won’t prevent you from getting the coronavirus, but it does reduce the odds of contracting it and can help you stave it off if there is a positive diagnosis. Here are eight vitamins that help boost your immune system -- and examples of foods that contain them if you don’t want to swallow any supplemental pills, according to the Cleveland Clinic. Notable foods that contain it: There are lot of foods that contain Vitamin C, including orange and grapefruit juice, broccoli, cauliflower, kale, kiwi, spinach, papaya, tomatoes and strawberries. Notable foods that contain it: Chicken, turkey, seafood, beans, broccoli, kale.