Here's an article on lipase by Dr. Walter Last LIPASE – The Universal Remedy He says that lipase deficiency is common, that fats can't be mobilized for fuel without sufficient internal lipase, and that only RAW fats contain lipase. He thinks lipase is a key to improved health and energy. I know from a Peat perspective some of what he writes is incorrect, e.g. that cells with more omega-3s produce more energy, but I'd be interested in getting knowledgeable Peaters' reactions.