And here is a 12mg dosage, this is what he started on today and will be on for the next two weeks.
I've never weighed a walnut but according to joepiebaker on cheftalk.com they normally weigh between 18 to 23 grams but about half of that weight is in the shell. Just to make the math easy let's say a walnut weighs 10 grams. So Patrick's 6mg dosage for the first two weeks was 0.0006 of a walnut per day. At that rate it would take him about 4 1/2 years to eat one walnut! That is a really small dosage.
This on the other hand is a ginormous amount of walnuts.