Hi. my 4 week old son still seems hungry after 60-90ml of formula every 3 - 3.5 hrs.he seems restless. when i give him more formula he drinks and falls asleep. how much should he be drinking?

Some basics: The average infant will take about their weight in kg as ounces (3kg=3oz) every 3-4 hrs with some variation. Feeding is the 1st nurturing process they learn & many want to suckle more for nurturing than feeding. Pacifiers may work as well when they want to suckle after a feed. As long as the kid is robust at feeds & filling out they are getting enough.