Coffee is the ideal healthy weight loss food. Not only does one cup of black coffee have negligible calories (that makes it a Free Food on the Nutrisystem plan ), but a Harvard study also found that drinking up to four cups a day can actually reduce body fat by about four percent. Researchers theorize that this is done by boosting the rate at which we burn calories (metabolic rate). 1 Keep your coffee healthy with smart indulgences. Unfortunately, coffee is one of the easiest healthy foods to make un healthy. All the mix-ins can turn your daily pick-me-up into one big fat calorie bomb. For example, if you have two cups a day with cream and sugar, you’d better add an extra 300 calories to your food diary. Two ounces of cream is 120 calories (with 12 grams of fat) and two teaspoons of sugar are 32 calories. Switching to whole milk saves you a bundle of calories—two ounces is only 38 calories. 2 There are plenty of other, better fixes to help you to get the coffee taste you want with...