How To Treat Loss Of Appetite Caused Due To Food Poisoning?

I m a healthy 65 year old male who had a clean colonoscopy four months ago - no polyps and one diverticulitis. I had food poisoning Thur and Fri from some bad meat I ate wed and Thur. I m fine now, but have lost my appetite. I ve eaten only three meals since Thur morning, because I felt I should, but don t feel hungry. I m on 80mg of Atorvastatin as the on Rx.