This study is designed to see how well healthy babies grow when they drink iron-fortified formula. "Iron-fortified" means that the formula has iron added to it. Iron is an important nutrient that helps carry oxygen in our blood. Babies in this study will drink the formula as much as they want for about 16 weeks, which is about 4 months. During this time, researchers will check the babies' growth by measuring their weight gain. The study follows guidelines from the FDA, which is a group that makes sure food and medicines are safe. To join, babies must be born healthy and full-term, meaning they were born around their due date. Babies with any health problems that might affect their feeding or growth cannot participate.

• Length of Study: 16 weeks.
• Eligibility: Only healthy, full-term infants can join.
• Monitoring: Growth will be checked by measuring weight gain.