Jordan Sand

There is some reason to doubt the story Daniel Soar tells about the origins of the controversy around monosodium glutamate (LRB, 9 September). Public concern over the adverse effects of MSG consumption began with a letter sent to the New England Journal of Medicine in 1968 signed by Dr Robert Ho Man Kwok. In 2018, Howard Steel, another doctor, claimed that he had invented Dr Kwok and written the...