The basic idea is that, according to recent research, fats are less invasive of sugars. This scientific endorsement made possible the rapid spread of this fashion butter, coffee that has conquered its space on the premises where it is not strange to hear order a bullet coffee, also known as fat black or smart coffee. If the coffee health benefits are already known, have breakfast with this type of drink "reinforced" fat replaces the first meal of the day doing the full of energy and concentration, keeping even at lunchtime satiety leading to avoid excesses.
Of course there are critics of this diet, nutritionists perplexed by the fact that it should be specified that the coffee to butter alone, without proper lifestyle, can only produce the opposite effect. Definitely not recommended so who leads a sedentary life, doing more damage to the health of those who get obesity. There is no doubt that taking coffee to butter, without reviewing the lifestyle rather than lose weight definitely makes you fat.