Most Delicious Poison: The Story of Nature’s Toxins — From Spices to Vices Noah Whiteman Little, Brown Spark (2023) One beautiful summer’s day about 30 years ago, my father had a mini-stroke. He was diagnosed with a heart arrhythmia and was prescribed the blood-thinning drug warfarin. But after a few years of relative stability, tests showed that his body was no longer metabolizing the warfarin properly.