An immune-friendly diet consists of a variety of healthy foods -- fruits, vegetables, grains, legumes, nuts, seeds, and foods with proteins. Regular use of SNACCs (sugar, nicotine, alcohol, caffeine, and chemicals) often defeats the efforts of your immune system to protect you. It's ironic -- often the foods that you crave the most are the foods that your immune system can't tolerate.

Common food allergens that irritate your immune system are distracting -- keeping it off track. The most common food allergens are cow's milk, eggs, wheat, soy, sugar, tomatoes, corn, and yeast. Some common food reactions include headache, nasal congestion, an upset digestive system, fatigue, fast pulse, frequent or dramatic mood changes, water retention, and difficulty losing weight. You may want to check your sensitivity to these foods by eliminating one at a time from your diet for about two weeks. See how your feel. Try rotating potential allergenic foods in and out of your diet so that your immune system doesn't have time to become fully reactive to them.