There are herbal help and then there is also the blue pill. If he is willing to diet and exercise for you will that help?

Herbs that can help are ginger, damiana, wild yam, beta sitasterol, saspirrilla, also b complex and with b 6 & 12. Go to a good health food store and get advice.

Also I would recommend a fiber powder to do 2 main things, ease his hungry and help him gid himself of what he has eaten.

Russell