Butter is always discouraged because of the saturated fats. But there is no evidence that butter can cause cardiovascular disease.
It appears it protect us against type 2 diabetes.
Eating 14 grams of butter per day does not cause cardiovascular diseases (blood vessels can become blocked) and diseases of the coronary arteries or strokes.
Claims the researchers at Tufts University in Boston, who analyzed nine studies in which a total of 636,000 people were observed.
The link between eating butter and cardiovascular disease is very weak, according to the researchers.
People who ate butter daily had even less risk of getting type 2 diabetes, the lifestyle disease related to our diet.
The problem lies in the concentrate on a particular macronutrient such as saturated fats, instead of on the entire diet, says the researchers.
Contemporary nutritional still recommend non hydrogenated vegetable oils; which contain many unsaturated fats and low in saturated fat.
It is time to revise those opinions, the scientists say. Other research suggests that dairy products such as yogurt and cheese can reduce the risk of diabetes.
The research is published in the journal PLOS ONE.