14. Onion
Onions are rich in flavonoids and potassium. These vegetables are antiseptic and antibacterial, it is a good idea to eat it every day, but especially when you have a cold.
Eating onions also helps to keep blood sugar low, reduces blood pressure and prevents strokes, heart disease and cancer. Luckily, onion can be added to almost all kinds of food: sandwiches, salads, fried and roasted dishes, so it’s not difficult to include it in your everyday diet.
