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.
The bone broth in chicken soup contains collagen, which can help boost your immune system, in addition to amino acids and nutrients that help prevent inflammation. Chicken soup's illness-fighting ability is thought to be related to cysteine, an amino acid released from chicken during cooking.
He recommends consuming 15 to 25 mg of zinc a day for a strong immune system and states that 3 oz. of dark meat turkey has 3.8 mg, while white meat turkey has just slightly less. Broccoli Broccoli is another healthy food for boosting the immune system.