AFAIU only bitter almonds, which are not used to make almond butter, contain significant amounts of cyanide. You could eat pounds of almond butter and not have an issue.
If we assume a 75Kg standard male human the lethal dose of cyanide would be 37.5 mg (0.5 mg by Kg)[A]. A Kg of sweet almonds has more or less, 25mg of cyanide [B] therefore if you eat 1,5Kg of almond butter in a short space of time you could reach the lethal dose.
Is a lot of butter but:
1) If you eat less you could still vomit or have stomach problems that could lower your chances of survival in such hostile environment.
2) the maker could had used some cheaper bitter almonds in the mix to lower the price. Bitter almonds have much more cyanide so even a few could lower the lethal oral dose.
And 3) there is a possible interaction with vitamin C suplements, that turn amygdalin in cyanide [2].
Eating half of the stuff wouldn't be so difficult in a diet that needs to replace 7000-9000 calories each day. 750 g of almond butter has around 4600 calories. A reasonable value to eat if choosen as the main source of fat in the diet.
