Eating peanuts, on the other hand, helps to promote tolerance to them, thereby decreasing allergy risk. (slate.com)
Remember that because caffeine is a stimulant, you can develop tolerance to it and have withdrawal symptoms (such as headache, fatigue, or irritability) when you eliminate it suddenly. (mindbodygreen.com)
Constipation often happens in babies who are being introduced to solid foods, or it can be a sign of milk or soy protein sensitivity or a lack of tolerance to something in breast milk or formula. (babycenter.com)