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 100g butter contains 888 kcal of energy, 1.4 g of protein, 98 g of fat, 296 mg of cholesterol, 0.02 mg of riboflavin, 35 mg of calcium, 8 mg of phosphorus, 39 mg of potassium, 40.3 mg of sodium, 7 mg of magnesium, 0.8 mg of iron, 0.11 mg of zinc, 1.6 μ g of selenium, 0.01 mg of copper, and 0.05 mg of manganese.
 Butter, also called butterfat and buttermilk, is made by separating the cream from skimmed milk, ripening the cream and stirring it. The biggest difference between butter and cream is its composition. Butter has a higher fat content. High quality butter is light yellow in color, even and delicate in texture, with no water oozing from the cut surface and fragrant in smell.
 Calcium content of butter

 Every 100 grams of butter contains 35 milligrams of calcium.
 Butter is so nutritious! The nutrition of butter is the first of dairy products. The butter refined from milk is rich in nutrients, including vitamins, minerals, fatty acids, glycosylated phosphatidylcholine, and cholesterol.
 Butter is also delicious for cooking. It can be used to fry fish, beef steak, toast and spread bread. It is not only nutritious, but also very mellow and delicious.