Did you know that broccoli, papaya, and red/green bell pepper are also rich in ascorbic acid? This antioxidant is known to boost your immune system, so stock up on these ingredients today.

Read the labels and do your research before consuming any kind of supplement. Consult your doctor to know what kind of vitamins are right for your family.

Vitamin D or cholecalciferol supports immune function and calcium absorption. Get your healthy dose through some sun exposure and healthy ingredients like fatty fish and eggs.