I'm taking care of a tiny, little baby boy who was born about two months ago and only gained 1 oz. since birth. He is really adorable and is eating very well (4oz every 2-3 hours). I was worried that he might have reflux or something that would make it difficult to keep his formula down but no sign of that so far.
Apparently children normally grow at a rate of about 30 g (1 ounce)/day in early infancy (birth to 3 months) and this then slows to about 20 g/day from 3-6 months and to only 12-15 g/day in later infancy (6 - 12 months). Older children grow even more slowly, with toddlers (1-3 years) growing, at about 8 g/day, and preschool age children at about 6g/day.
Please pray for strength for this sweet baby.