4-6oz every feeding?

Katie • Mommy to a beautiful baby boy 💙 8/20/18

My baby boy is only a month old and he eats 4-6 oz every 2-3 hours which ends up being 30-34oz a day. Is anyone else’s babies eating this much? My mil keeps telling me to put rice cereal in his bottle to “fill him up” but I’ve heard so many negative things about it, she gives extremely outdated advice. He’s gained a pound every week since we’ve had him home, now he weighs 11 pounds.