Nutrients Kids Need Do Children Need Multivitamins? Is food enough, or do kids need more? 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. What's in Your Kids' Vitamins & Supplements? Potentially harmful ingredients to avoid. Why Do We Need Vitamin D? For healthy bones, teeth, immune system, and more.