You received many good answers describing how alcohol is metabolized and used by the body. But let’s consider the BIG picture for a moment. We are trying to affect a lifestyle change with our clients. Ingesting more than 1-2 drinks per day or more than 10 per week is going to effect the lifestyle choices your client makes. As teir inhibitions drop, they will make more and more unwise lifestyle choices, i.e. eating high calorie, fattening foods with friends they are partying with. Other unhealthy choices may also be involved which I won’t go into here.
I tell my clients you don’t have to stop partying and enjoying yourself, just do it on ONE drink. Then switch to club soda & lemon or plain water. The real danger of alcohol is much more than its 7 calories per gram. Its real danger is how it causes people to do STUPID things.