I did go to the TSA site, and it says this: in the section about formula, breast milk and other liquids......
"When traveling with your infant or toddler, in the absence of suspicious activity or items, greater than 3 ounces of baby formula, breast milk, or juice are permitted through the security checkpoint in reasonable quantities for the duration of your itinerary, if you perform the following:
Separate these items from the liquids, gels, and aerosols in your quart-size and zip-top bag.
Declare you have the items to one of our Security Officers at the security checkpoint.
Present these items for additional inspection once reaching the X-ray. These items are subject to additional screening and Officers may ask you to open a container.
You are encouraged to travel with only as much formula, breast milk, or juice in your carry-on needed to reach your destination.
You are allowed to bring gel or liquid-filled teethers, canned, jarred, or processed baby food in your carry-on baggage and aboard your plane
......."