Deficient in a certain enzyme

This crossword clue is for the definition: Deficient in a certain enzyme.
it’s A 29 letters crossword puzzle definition.
Next time, when searching for online help with your puzzle, try using the search term “Deficient in a certain enzyme crossword” or “Deficient in a certain enzyme crossword clue”. The possible answerss for Deficient in a certain enzyme are listed below.

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Possible Answers: LACTOSE INTOLER-ANT (giving “ANT-MAN”).

Last seen on: LA Times Crossword 20 Nov 20, Friday