Eating pineapple tongue numbness can be through drinking salt water, drinking milk to make the symptoms get relief. 1. Drink salt water: eating pineapple can lead to numbness of the tongue, itchy mouth and other problems, according to the literature, pineapple contains biogenic glycosides can lead to this situation, salt water can inhibit the activity of biogenic glycosides, which can alleviate or eliminate the symptoms of numbness of the tongue. 2. Drink milk: According to the literature, pineapple also contains bromelain, which can break down the protein on the tongue, resulting in tongue numbness after eating. Milk can reduce the breakdown of protein by bromelain to relieve the symptoms of tongue numbness. Later, if you eat pineapple again, it is recommended that you heat it with high temperature or soak it in salt water before consumption, and eat it in moderation, do not eat too much.