For example, the probability that a person who weighs 160 lbs, (72.64 Kg), who ingests 0.3632 grams potassium cyanide will die within three days is 50 %, and if he ingests 0.55 grams, the probability is over 90 %. To put these numbers in prospective, a teaspoon of salt contains 7.2 grams and a tablespoon contains 23.7 grams. Thus, 90 percent of 13 people, about 12, who weigh 160 lbs can be killed using a SINGLE teaspoon of potassium cyanide. A single tablespoon of potassium cyanide will kill 90 % of 43 people, i. e. about 39. In reality, death due to cyanide poisoning will occur in much shorter time than three days, more likely in 2-6 hours.