Citing the occurrence of poisons in vegetables, novelist M Mukundan said that even literature is adulterated. He said that labs could identify poison in vegetables, but it was very difficult to isolate it in literature. He was speaking after inaugurating a remembrance meeting of noted litterateur Uroob by the Uroob cultural committee here. He added that the ‘poison’ is more in poetry and novels, while in short stories it was not that extensive.