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.
You can introduce solids any time between 4 and 6 months if your baby is ready. Until then, breast milk or formula provides all the calories and nourishment your baby needs and can handle. His digestive system simply isn't ready for solids until he nears his half-birthday. To start solids, he should be able to move food to the back of his mouth and swallow. 2  As he learns to swallow efficiently, you may notice less drooling â though if your baby's teething, you might still see a lot of drool. 3  Significant weight gain.