NPR

How Almonds Went From Deadly To Delicious

In a new study, researchers pinpoint the genetic mutation that transformed almonds from toxic and bitter to tasty and sweet.
Thanks to a genetic mutation thousands of years ago, modern domesticated sweet almonds are delicious and safe to eat.

St. Basil's Hexaemeron, a Christian text from around the fourth century, contains a curious botanical instruction: Pierce an almond tree in the trunk near its roots, stick a "fat plug of pine" into its center, and its almond seeds will undergo a remarkable change.

"Thus the ... bitter almonds ... lose the acidity of their juice, and become delicious fruits," the text reads. "Let not the

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