Chicken has an amino acid that thins the mucous lining of the sinuses, thus relieving stuffiness. Garlic and onions kill flu and cold viruses. Fish is good for your brain. The mineral zinc is found in fish and shellfish. Studies show that even a minimal deficiency of zinc impairs thinking and memory.
Blueberries fight the bacteria that causes diarrhea.
Bananas are a natural antacid. They soothe heartburn or gastric distress. Spinach is good for your spirits. It contains lots of folic acid. If your body doesn't have enough folic acid, you may feel depressed.