- Why was Monica Geller overweight in her early years?
- How did she become normal weight?
Monica was fat in her younger years because she ate too much.
That prompted Monica to lose weight, which she successfully managed by Thanksgiving 1988.
She's never been shown overweight, but they did do a few flash backs to when she was younger and she was in a fat suite.
I think she said a few times that you would binge on things like ice cream. You weight gain came from her inability to get boys to like her.
I don't know how she lost the weight.