Has the "coconut oil pig feed" anecdote ever actually been sourced?
This quote:
>In the l940s, farmers attempted to use cheap coconut oil for fattening their animals, but they found that it made them lean, active and hungry. For a few years, an antithyroid drug was found to make the livestock get fat while eating less food, but then it was found to be a strong carcinogen, and it also probably produced hypothyroidism in the people who ate the meat. By the late l940s, it was found that the same antithyroid effect, causing animals to get fat without eating much food, could be achieved by using soy beans and corn as feed.
Seen here: Coconut Oil
And similarly:
>Coconut oil is the least fattening of all the oils. Pig farmers tried to use it to fatten their animals, but when it was added to the animal feed, coconut oil made the pigs lean [See Encycl. Brit. Book of the Year, 1946].
Seen here: Unsaturated Vegetable Oils: Toxic
It has widely circulated online and is repeated here on Reddit, on the forums, and by numerous short form "content creator" types on TikTok, Instagram, etc. but is never sourced outside of Ray's "citation" to the 1946 Encyclopedia Britannica Book of the Year which can be found here: 1946 Britannica Book Of The Year : Encyclopaedia Britannica Inc Chicago : Free Download, Borrow, and Streaming : Internet Archive
However I have spent a good deal of time looking through it and cannot find anything relevant. Has anyone ever found the exact source of this anecdote?