Nutrients Kids Need The Benefits of Vitamin C For a healthy immune system, wound healing, iron absorption, and more! Why Do We Need Vitamin D? For healthy bones, teeth, immune system, and more. What's in Your Kids' Vitamins & Supplements? Potentially harmful ingredients to avoid. What to Look for in Kids' Multivitamins What to look for and what to avoid. Omega-3 Fatty Acids and Development Learn why omega-3s are so important for development. Do Children Need Multivitamins? Is food enough, or do kids need more?