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%).
Fat Content. Each serving of crunchy peanut butter has 16 grams of fat, or 25 percent of the daily value. A serving of regular creamy peanut butter has 16.1 grams of fat, and reduced-fat creamy peanut butter has 12.2 grams of fat per serving. Depending on the type of peanut butter you choose, all but 2 or 3 grams of this fat, however, come from healthy unsaturated fat instead of unhealthy saturated fat.