Arteries carry blood away from the heart, and veins carry blood toward the heart. Capillaries connect the arteries to the veins throughout the body. Fun Fact: If all the blood vessels from a child's size body were lined up in a row, they would form a line more than 60,000 miles long.
Fats in Butter. Butter is about 80% fat, and the rest is mostly water. Basically, it is the fatty portion of milk that has been isolated from the protein and carbs. Butter is one of the most complex of all dietary fats, containing more than 400 different fatty acids. It is very high in saturated (about 70%) fatty acids, and contains a fair amount of monounsaturated fatty acids (about 25%).
Monounsaturated fats: A type of unsaturated fat that contains only one double bond in its structure. Monounsaturated fats are typically liquid at room temperature and include canola oil and olive oil. Polyunsaturated fats: Another type of unsaturated fat that contains two or more double bonds in their structure. They are liquid at room temperature. Polyunsaturated fats include safflower oil, sunflower oil, and corn oil. Unsaturated Fats in Your Diet The American Heart Association recommends that most of your daily fat intake should come from monounsaturated and polyunsaturated fats.