A. Food allergies are becoming a significant health issue among the elderly. Age-related changes significantly impact the innate and adaptive immune systems, and older adults are more likely to develop food allergies as their immune systems age. However, depending on the age of development and the type of allergy, food allergies can go away in certain circumstances. For example, allergies to soy, wheat, milk, and eggs develop in childhood and may be outgrown, while allergies to tree nuts, peanuts, and shellfish (mainly in adults) remain lifelong. Therefore, your allergies may shift and change at different times in your life.