Previous CDC studies have shown that nearly everyone in the U.S. is exposed regularly to low levels of perchlorate. People are exposed through eating food, and drinking milk and water that contain perchlorate. Trace levels of perchlorate have been found in both breast milk and infant formula.revious CDC studies have shown that nearly everyone in the U.S. is exposed regularly to low levels of perchlorate. People are exposed through eating food, and drinking milk and water that contain perchlorate. Trace levels of perchlorate have been found in both breast milk and infant formula.
When you add solid foods to your babyâs diet, continue breastfeeding until at least 12 months. You can continue to breastfeed after 12 months if you and your baby desire. Check with your childâs doctor about vitamin D and iron supplements during the first year.
Feeding tips. 1  If your baby won't eat what you're offering on the first try, offer it again in a few days. 2  Get more detailed tips on how to introduce solids. 3  Print our step-by-step guide to feeding your baby. Begin with about 1 teaspoon pureed food or cereal. 2  Mix cereal with 4 to 5 teaspoons breast milk or formula (it'll be very runny). 3  Increase to 1 tablespoon of pureed food, or 1 tablespoon of cereal mixed with breast milk or formula, twice a day. 4  If giving cereal, gradually thicken the consistency by using less liquid.