On the SLD forums, you can read about many positive side effects of drinking oil. (One of them — better sleep — caused me to start studying the effects of omega-3.) Today three people posted some more:
I conclude that a big nutritional deficiency has been corrected.
What fraction of people with (a) dry or cracked skin, (b) asthma, and (c) irritability have been told to consume more fat, I wonder? Zero? In the case of the asthma and irritability, I expect the improvement comes from a fat high in omega-3.