An infant's digestive and immune systems are still developing, and while it is good to introduce new foods, use caution with certain choices. Some foods are not appropriate for an infant and may threaten his health. Introducing small pieces of food such as popcorn, candies, nuts or raw vegetables too early will increase the risk of choking, according to the Parent Handbook website.
Solid Food
In the very early stages of development up to six months, avoid giving your baby any solid foods. Feed him solely on breast milk or formula.
Honey and Bee Products
From four months up to one year, refrain from giving an infant honey or any other bee products. Honey can cause botulism spores to form in a baby's intestine, which can produce dangerous toxins, according to the Baby Center website.
Peanut Butter
Peanut butter is a common food allergy among infants and children, according to the University of Maryland Medical Center. Avoid giving your infant peanuts or related products for up to the first three years. Peanut butter can also create a swallowing problem if eaten in amounts that are too large for the baby to swallow.
Cow's Milk
Cow's milk contains proteins that are not digestible by a baby under one year of age. It also lacks all of the nutrients required of a human baby, and contains minerals in amounts that could adversely affect the kidneys, according to the Baby Center website. Also avoid any type of unpasteurized cheese as it may contain listeria.
Fish and Shellfish
For the first year of life, refrain from giving the baby any fish or shellfish. The possibility of mercury contamination is too great a risk for her developing body, according to the Parent handbook website.
