In the nineteenth century, before the rise of commercial baby food, nearly all infants were breastfed exclusively for most of their first year. By 1950, most infants were eating solid food before two months of age, and that food was increasingly made by companies, not parents. At first, commercial baby food was the same as canned food for adults, just in smaller jars. But in the 1970s, when parents rebelled against “canned food taste,” baby food manufacturers responded by offering more variety and less salt and sugar. Today, age of first solid food and choice of baby food vary widely. When and what babies eat, argues Amy Bentley, mirrors our larger debates about nutrition, diet, and the morality of commercial versus home-made food.