One and a half year old baby can eat pineapple, but pay attention to whether there is discomfort after eating, if there is no allergy and other discomforts, you can eat in moderation. Pineapple is a very nutritious tropical fruit, rich in vitamin B, vitamin C, protein, digestive enzymes, etc., beneficial to the growth and development of the baby, and can help the baby digest, promote gastrointestinal motility. But avoid eating too much pineapple at one time, so as not to cause indigestion, gastrointestinal dysfunction symptoms. The first time a baby eats pineapple, pay attention to a small amount of food, because 1.5-year-old babies digestive system and immune system is not fully developed, gastrointestinal function is relatively weak, the first time a small amount of pineapple, observe the baby whether the pineapple allergy. If your baby develops a perioral rash after eating pineapple, accompanied by congestion and edema of the mouth and lips, or itchy skin and pimples, these conditions indicate that your baby may be allergic to pineapple, and it is not recommended to eat it again in the future. If the baby develops nausea, vomiting, or even bloating, abdominal pain, diarrhea and other adverse reactions, it suggests that the baby’s gastrointestinal tract is intolerant to pineapple, and continuing to eat pineapple is also not recommended.