lose weight required before iui?

An

hi ladies,

so I'm a plus size lady I'm 5'4" and 227lbs. I gained weight due to depression and the medication. thankfully the meds worked and I'm doing great. however, I'm looking to do IUI and the doctors required me to lose 20lbs first. is that a normal request? I want to add that all my tests came back great I'm not diebetic or have any other conditions.

thanks!