“Let food be your medicine,” said the ancient Greek physician Hippocrates in the 4th century B.C. But he probably didn’t envisage a world in which people would feel so anxious about their diets that they would get their DNA sampled before they decided what to eat. Companies like Nutrigenomix and DNAFit will now test a swab of your saliva for various DNA markers and send you a detailed report on what to consume in order to optimize health for your particular body. Have trouble metabolizing caffeine? Cut out yogurt.

Source: Wall Street Journal March 21, 2019 15:22 UTC