Are you an alcoholic if you drink a 30 pack per week?

Not necessarily. The quantity of alcohol one consumes regularly or otherwise is not alone a basis upon which a diagnosis of alcoholism may be made.

Alcoholism specifically involves the sufferer physically and mentally and arguably spiritually. The key diagnostic elements proffered by the book entitled Alcoholics Anonymous (44:1) are:

"If when you honestly want to you find you cannot quit entirely or, if, when drinking you can not control the amount you take, then you are probably alcoholic."