Coffee, when consumed with no sugar or creamers, has no negative effect on weight gain because you are not adding any additional calories to your diet. If you are looking for a caffeinated drink, black coffee is a better choice than sugary sodas. If you are addicted to coffee, it is best not to quit cold turkey. The safest way to quit is to slowly cut back by one cup (8 ounces) per day for a week at a time. So for example, if your current consumption is 8 cups a day, you should cut back to 7 cups a day for one week, then 6 cups a day for another week and so on. This will help prevent what’s known as ‘caffeine headache’ so the bottom line is, moderate consumption of coffee, such as one or two cups a day is perfectly healthy unless you have an aversion to any caffeine. But as with all things, moderation is the key.