My learning teaches that any oil from fish also contain the diseases the fish was fighting. So in return you are making your body more toxic.... Eating for longevity/divinity is all about consuming foods which does not clog the system.... Fruits are the only food which cleanses and removes old matter and DOES NOT Accumulate.. Since fruit is the best type of food, the oil from olives supplys the best fats... Since the first day of becoming fruitarian I have noticed the body CRAVING things it does not need... It is more of a want then need... God wanted us to be WISE and when using food one must research intensley and experiment... The words of humans can be real persuasive although experimentation is the answer to your true needs.