You are allowed to bring a reasonable amount of breast milk and other baby food with you.
You do not need to declare the breast milk and baby food at the security checkpoint.
If the breast milk or baby food is frozen, it should be frozen solid when it is placed in your carry-on or checked bag.
If the breast milk or baby food is in a liquid form, it will be subject to the TSA's 3-1-1 liquids rule. This means that you can bring bottles of breast milk and baby food in your carry-on bag as long as they are in a quart-sized, clear plastic, zip-top bag and the containers are 3.4 ounces (100 milliliters) or smaller.
If you are traveling with a large quantity of breast milk or baby food, you may be required to undergo additional screening.
By following these guidelines, you should be able to travel with breast milk and other baby food without any issues.
If you have any questions or concerns, you can contact the TSA directly or check their website for more information.