Food allergies and intolerances can change with age, lifestyle alterations, or pregnancy. Just when you think you have your intolerances pinned down, they can shift, or a new allergy can crop up. On the other hand, some of those who successfully eliminate a trigger food from their diet may find that they're able to eat other foods that previously caused problems once their gastrointestinal systems heal.

NataliaDeriabina / Getty Images
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.