Vitamin K

What it does: Blood clotting.

Deficiency Signs: Symptoms include those of a purpuric syndrome, i.e., ecchymosis, petechiae, bruising, abdominal pain, risk of massive bleeding, cartilage calcification and severe malformation of bone development and calcium deposits in blood vessels. In children, this can cause alterations in the face, nose, bones and fingers.

Best food sources: Cauliflower, Brussels sprouts, lettuce, cabbage, beans, broccoli, peas, watercress, asparagus, potatoes, corn oil, tomatoes, milk.