It's not easy losing weight when your homeless
Someone asked me once what options I knew of regarding good fat burners. Honestly I can't say other than what I've heard through rumor control.
There's drinking water with some lemon juice added for flavor. There's not eating, which isn't good. There's also eating nothing but vegetables with some nuts for protein, as long as a person makes sure their getting other nutrients naturally.
The thing is no matter how hard someone tries while homeless, they are faced with the issue of having to ingest what's at hand...when it's on hand. There are many times a person has to make the choice of overindulging one meal; or many in a row; out of pure survival knowledge they may not have the same option the next day.
I'm just sayin'.