Is there any food or medicine that could loose appetite?

Tell your friend to cut out the carbs. mainly the white foods like sugar, flour, pasta, potatoes, rice and such. Stick to fresh fruits and vetegables along with lean meats and fish. He will lose weight. If he eats only the meats, fruits and vegetables, he will lose weight and still eat as much as he wants (within reason) and he will not be hungry. Tell him to add some exercise. Walking is excellent. It requires no money - just a good pair of shoes. He can start with just a few minutes at a time and work up to an hour. I lost 70 pounds this way. I also have asthma. Good luck.

He could talk to his doctor, I guess, but in my opinion it all comes down to will power. It's really hard - yeah - but no one is UNABLE to resist things. It's all about our motivation and determination to lose weight. In the end, it's all in our minds, and we need to resist the urge to over-eat as much as we can. He should also be looking into a good exercise routine.

There is an edible green algae in the name of Spirulina that is rich in protein blocks called phenylalanine. There are researches and studies you can find online explaining this green algae can suppress your appetite while at the same time providing you vital nutrients that your body needs. You can find "food supplement" preparations in tablet form sold in leading health stores worldwide online and offline. What's amazing with studies, they are claiming you can get complete nutrition is just one tablet of Spirulina! You ought to find if it's true.