While it is common for the baby to want to feed frequently, cluster feed, and sometimes faster weight gain more early-on compared to formula feeding, feeding directly from the breast is a scenario that does not contribute to overfeeding or obesity.
In fact, since the composition of breastmilk is perfectly made for their energy needs, and without fillers, and children who breastfed are actually less likely to become overweight later in life. The pace is also a huge factor in preventing overfeeding, as breastfeeding is very involved on their end, and releases slowly throughout the feed. This gives their stomach enough time to communicate to their brain when they feel full.
Emphasizing breastfeeding directly at the breast is an important specification, too. Bottle feeding, regardless if it contains breastmilk or formula, can overfeed, and quite easily. Even with a slow-flow nipple, which has no real regulation on what that means from brand to brand, bottles rely on gravity and suction, and no other stimulation or internal regulation. Paced bottle feeding is a practice taught by many lactation consultants/ IBCLCs to combat overfeeding, spit up, and waste. That’s right: lactation consultants can help bottle-fed babies, too!