Recommended healthy food supplements for five-month-old babies Five-month-old babies can already sit and stand with their heads held up, and begin to become interested in the food around them. At this time, appropriately adding some complementary foods to the baby can provide sufficient nutrition and help the baby grow better. The following are recommended healthy complementary foods for five-month-old babies. 1. Vegetable puree. Five-month-old babies can already start to eat some vegetable puree. Can