If Cytomel is used, it is efficient to approximate the physiological rate of T3 formation, by nibbling one (10 to 25 mcg) tablet during the day. When a large amount is taken at one time, the liver is likely to convert much of it to the inactive reverse T3 form, in a normal defensive response.
I know he apparently later clarified that Reverse T3 is from T4, but I am curious to know why he said the Liver is likely to convert much of the T3 as a defensive response? Is this true? An interesting mistake he made if its not true, thats for sure.