Aminogen safely gaining weight with cancer

Hello!

I'm pretty slim and I want to gain some safe weight... I looked at some enzyme complexes, and found Kaizen Aminogen interesting. It breaks down proteins into ammino acids that are ready to be absorbed by muscles.. I have Hodgins type lymphoma and am trying to gain some weight(muscle) and I was thinking if its ok tto use sumthing like Aminogen, or for example some type of protein isolate to get some mass cuz I'm 64 kilos and I the wind could soon blow me away from the bus stop ;) Info apprecieated very much