Perhaps that can work if a body is working in its perfect conditions. For example, I'm remembering the story from Chris Masterjohn and his problem synthesizing cholesterol. If this happens due to a genetic problem, I wonder, regarding PUFAs, if something similar could happen too.Personally, that is why I'd rather let the body figure out how much PUFA it needs, synthesise it as needed, and then put it exactly where it wants the PUFA to be, rather than consume PUFAs and have them either circulating freely or potentially mobilised from storage.