While the theme of food doesn’t come up until book four, I’m always on the lookout for relevant information. Here’s an interesting piece on the genetic modification of leafy greens to provide medication through diet.
From the article:
“A team of researchers at the University of California, Davis, have developed modified transgenic lettuce that produces a bone-stimulating hormone. The lettuce can be easily grown in space and could help strengthen an astronaut’s bones. It may even help reduce the risk of osteoporosis on Earth…”
ScienceAlert 
