Vegetables and fruits are basically alkaline while meats, dairy, and processed foods are acid.

However, if an intruder is introduced, it is up to the body's immune system to eradicate it. Instead of the Standard American Diet that consists of 80% acid and 20% alkaline food, eat a diet of 20% acid and 80% alkaline. An easy remedy to that is to drink wheatgrass.

You could take lots of supplements, but still may not have a healthy immune system. Can Your Immune System Help Fight the Swine Flu. If you follow the advice of the Center for Disease Control, World Health Organization, and Homeland Security, you would godfry your hands often, cover your mouth when you cough and stay at home when you are sick. So how do you build up your immune system.

Our immune system is an amazing and complex system, it fends off foreign bacteria and viruses which cause infections or illnesses.

But for many folks it is hard to add in 5 servings of vegetables a day as recommended by the government. You could go to your family doctor, but he really was trained to treat the illness.

This is all very good advice, as your skin and mucous membranes in the mouth, nose and other areas are the first line of defense.