Soy is one of the most common food allergens. Soy allergies are most common in children and young people. A child will usually outgrow a soy allergy, but the allergy may persist and be a lifelong ...

Soy is a popular legume of Asian origin. Soy is high in plant protein and people can consume it in a variety of ways. People who follow a vegetarian or vegan diet often use soy to replace meat.