Vitamins and supplements can help fill the gaps in your diet; the best way to load up on essential nutrients is to get them straight from the food you eat. Your body absorbs and uses vitamins and nutrients better when they come from a dietary source. When it’s a vitamin or any other supplements, it’s often questionable how much you’re getting. Because supplements are regulated as foods and not as drugs. The Food and Drug Administration doesn’t evaluate the quality of supplements or assess their effects on the body. Nutrients including Vitamin C, Vitamin D, Zinc, and Iron have been proven to boost immunity. Also, it’s important to know that you build a strong immune system by maintaining healthy eating habits over time. You can’t eat four oranges for breakfast and expect to be protected against catching a cold the same day.