How supermarket fluorescent lights boost the nutrients in spinach

Supermarket fluorescent lights boost spinach's nutritional value, scientists have found.

But leaves kept in darkness can lose nutrients.

The research, revealed in the American Chemical Society's journal, could lead to better ways of keeping vegetables.

Scientists Gene Lester, Donald J. Makus, and D. Mark Hodges said that supermarkets often display fresh spinach in clear plastic containers at around 39f in showcases that may be exposed to fluorescent light 24 hours a day.