Yeah mate, lots of doom and gloom merchants on here.
They are loads of us who lost weight, and reversed diabetes, have a look at the Newcastle diet.
It did the job for me.
It's a good site, but it makes it's coin from selling a low carb diet course apparently, and likes to keep the low carb people pepped up, but once you get past that, that is some good advice on just how to lose weight, and get yourself back onto a normal diet.
No offense to the missus like, but if you say she needs to lose a few pounds, it may tip her back into the good zone.