Pure virgin coconut oil, containing no hydrogenation (the process of adding hydrogen to make a liquid fat hard), contains 92% saturated fat -- the highest amount of saturated fat of any fat.
Most saturated fats are solid at room temperature, found in animal products (such as meat, dairy, poultry with skin, and beef fat) and contain cholesterol. Unlike animal fats, tropical oils -- palm, palm kernel, and coconut oils -- are saturated fats that are called oils but depending on room temperature can be solid, semi-solid, or liquid, and do not contain cholesterol.
Like all fats, coconut oil is a blend of fatty acids. Coconut oil contains an unusual blend of short and medium chain fatty acids, primarily lauric (44%) and myristic (16.8%) acids. It is this unusual composition that may offer some health benefits.
Additionally, "because they come from coconuts, they may contain beneficial plant chemicals that have yet to be discovered," says Mozaffarian, researcher and co-director of the cardiovascular epidemiology program at Harvard.
As for calories, all fats have the same number of calories per gram. One tablespoon of coconut oils contains 117 calories, 14 grams fat, 12 g saturated fat, and no vitamins or minerals.