Introducing Immunity Support baby food blends from Beech-Nut! Whole pear, kale, and orange are blended with beta-glucan to help support a strong and healthy immune system. Designed especially for young eaters who are building a healthy immune system, Beech-Nut Naturals Stage 3 Immunity Support baby food blends are made with 35mg of beta-glucan. Beech-Nut Stage 3 baby food jars are ideal for infants 8 months and older.