Which foods should not be served to infants within the first 12 months?

The recommendation against serving allergenic foods such as shellfish and egg whites within the first 12 months is based on guidelines aimed at reducing the risk of food allergies in infants. During this critical period of development, an infant’s digestive system is still maturing, and exposure to certain allergenic foods may trigger allergic reactions. Research suggests introducing allergenic foods later, except in certain cases where early introduction might be monitored by a healthcare provider.

In contrast, options such as chocolate, honey, and salt, while not ideal for infants, are often highlighted for different reasons. Honey poses a risk of botulism and should be avoided until after 12 months. Salt can be harmful because infants' kidneys are not fully developed to process high sodium levels. Fruits, proteins, and vegetables are generally considered nutritious and can be safely introduced to infants at the appropriate stages of solid food formation, typically starting from around six months. Whole grains and dairy can also be introduced, but dairy should be limited to some forms (like breastmilk or formula) until after one year to avoid digestive issues.

Thus, the guidance around allergenic foods focuses on preventing potential allergic reactions, making it the best answer in this context.