Do you believe in so-called food-combination poisoning? Do you have the courage to eat crab and Chinese persimmon together.? In fact,there is no need to worry about poisoning.As early as 80 years ago,it was proved that so-called foodcombination poisoning is a superstition,through experiments by a man named Libin T.Cheng (1900-2010),who was one of the founders of biochemistry and nutrition in China and who also became a 110-year-old wise man.