I have always counseled clients to limit caffeine intake. Too much caffeine can hinder your ability to sleep soundly which in turn can cause other problems, and it can also raise blood pressure. It is also very dehydrating and given the fact that most people do not drink nearly enough water to begin with, it can cause even more problems.
But I have never told a client who enjoys a cup or two of coffee in the morning that they must give it up totally. Coffee is a “whole food” product and depending on the quality of the coffee you consume and how much, it can definitely be part of a healthy diet. In fact, a cup of coffee before you exercise has been shown to help with weight loss – but that’s black coffee sweetened with something like stevia if desired, not one of those fancy, high calorie, expensive coffee drinks.
This article from Life Extension talks about the benefits of moderate coffee consumption.
Are you a coffee drinker?