I'm not your doctor, but would expect that being sensible is going to be the way forward. You'll be able to enjoy a beer, enjoy a good meal...pretty much everything you're used to really. Just in moderation, and remember to take some exercise as well.
Good luck.
Its the lack of moderation that has caused the problem. Well maybe its time I grew up and became a responsible adult instead of wearing the non existent invincibility cloak that is becoming less and less reliable over the years.