Take a daily dose of an immunity booster drink to strengthen your immune system. This tasty, healthful beverage contains little sugar, dairy, gluten, or artificial colouring. With these immunity boosters, you can strengthen your immune system and aid your body in warding off diseases. They strengthen your body's defences and supply antioxidants to ward off disease. The immune booster beverage is ideal for days when you need a little more defence. You probably already have the ingredients for this immunity-boosting beverage in your refrigerator.