Is it true that formula fed babies are more likely to become obese children/adults than breastfed ones?

As what Idza has mentioned, there are a number of factors at play that may have contributed to the link between formula fed babies and higher rate of obesity. A common reason is that when a baby is breastfeeding, he/she responds to the signals sends by their body to indicate that they are full. They will naturally stop suckling once they are full. A bottle-fed baby, on the other land, may be encouraged to finish their bottle instead of responding to the satiety cue. In other words, there is a chance that a bottle-fed baby may overeat. However, it is possible to help your baby develop healthy eating habits by being sensitive to his/her feeding cues (and not based on a feeding schedule). Infants have small stomachs and would like have frequent feedings but with smaller amount. There is no need for babies to finish the entire bottle of milk he/she was given. Once they seemed disinterested, it is a cue to take the bottle away. There are also times where he/she is crying for comfort and not food. Hence, don’t be too quick to offer him/her the bottle, trying soothing by rocking or other means of relaxation first.

Although some studies might show a higher rate of obesity in formula fed children, we can't just blame formula for that. There are plenty of obese children and adults who were breastfed when they were babies. The questions we should consider are: 1) Were these children also inactive? 2) Were they fed an unhealthy diet later on in life? 3) Were the formula feedings regulated or just given whenever baby wanted? There are too many other variables in obesity to just claim that any extra weight was strictly due to formula. http://sg.theasianparent.com/5-infant-formula-feeding-myths/

thanks