A. Early symptoms of the illness are much like the flu. After a short time (in some cases a day or two), more severe pneumonia-like symptoms may appear. Not all individuals with Legionnaires' disease experience the same symptoms. Some may have only flu-like symptoms, but to others the disease can be fatal.
2) Foods High in Vitamin E. Like vitamin C, vitamin E is a powerful antioxidant. Research suggests maintaining ample levels of vitamin E is crucial for maintaining a healthy immune system, especially among older people. To get your fill of vitamin E, look to these foods: wheat germ oil.
Gravesâ Disease: Foods to Eat. Berries: Berries, such as blackberries, blueberries, and raspberries, are brimming with antioxidants. These antioxidants help keep your immune system strong. Gravesâ disease is an autoimmune disorder, which means that your immune system attacks healthy tissues in your body.