My post workout protein shake has around 150 calories (1 scoop in 500ml) so bearing in mind i burn around 1000 calories in a workout its not so bad.
I did a quick search and came up with
http://www.maximuscle.com/maxiwomen/iwanttolosefat.html
If you go to
Rpoints.com and become a member, then follow their link to maximuscle you'll get 5% cashback too