welome here and please dont feel bad about asking questions its the best way to learn. Read as much as U can about the subject, from posts on here to any low-carb book. Some people dont have problem drinking a bit of caffiene products others do. I quit cold turkey and suffered BAD for a few days but am really glad Im off them. I stick to water 90% of the time, may be boring however I do eat such rich wonderful food I dont miss extra beverages. I love coffee so a few days a week I will have decaf. Anyway good luck and keep asking questions!