I don't usually post raw
links, but this
one is an
interesting read. Basically, the scientists in question concluded that
the hormones in the plants we eat can directly affect both our bodies
and our gut microbes.
For example allowing your plants to be exposed to drought conditions
prompts those veggies to produce abscisic acid. This chemical has been
linked to inflammatory bowel disease and other problems...but at the
same time the chemical can help alleviate diabetes. So I guess the
upshot is --- consider your own ailments when deciding whether or not
to water those brussels sprouts....