Could you please explain the difference between vegetable and animal fats and the effects of these in diets?
Animal fats are fats from the carcasses of animals (eg the fat on a chop) or from what the animal produces (eg the fat from milk used to make butter or cream). Animal fats include the fat around a piece of meat and marbled in the meat. Also the skin on chicken or duck, butter, ghee, cream, lards and drippings. These fats are predominantly "saturated fats" which have been linked with heart disease.
These fats not only contain cholesterol but will also raise cholesterol (the low density lipoprotein) and this can lead to atherosclerosis (clogged arteries). Imagine the fat after you've grilled some lamb chops ... as soon as the fat begins to cool down, boy does it stick to the baking tray!
Many studies have also investigated whether these fats have a role in cancers. The only animal fat that is considered "healthy" would have to be fish. The fish skin and the fat within the fish both contain Omega three fats. These are helpful for heart disease, diabetes, arthritis and blood pressure. If you are fond of canned fish then check out the type of oil in the can.
Vegetable fats are the oils extracted from plants, nuts, fruit and vegetables. They can vary from coconut, sunflower, sesame, avocado, canola and olive oil. These fats vary widely in the type of fats they contain, although none contain cholesterol. However, the fat extracted from palms and coconuts is highly saturated and is the least healthy for the same reason as animal fats.
Canola and olive oil are highly monounsaturated and these types of fat help to lower the body's cholesterol and hence are helpful. They may help towards many inflammatory problems.