Does your refrigerator light stay on when you close the frig door? No? Well, new research is suggesting that perhaps it should! As a chiropractor, I’m all about “total wellness,” which means that I believe in routine chiropractic care along with a healthy lifestyle that includes good nutrition, regular exercise, drinking plenty of water, and dealing effectively with life stresses. Getting the nutrition we need from fruits and vegetables used to be a “no brainer,” i.e., just buy them fresh. But, with the current trend towards big farm over-planting that has lead to soil depletion in many areas, sadly the fruits and vegetables grown in, and pulled from, soil lacking in nutrients lack much of the health benefits they once offered. We generally need to search for fruit and veggie stands and farmers’ markets to get anything close to the natural nutrition that was once “a given” when we were children because, let’s face it, it’s hard to find healthy produce in our supermarkets anymore. So, I was pleasantly surprised and very interested in a new study that the harsh, unnatural lighting in most supermarkets — the kind of lighting that seems to have no environmental upside — apparently has a bright side: healthier fruits and vegetables.
That’s right! A recent study found that spinach actually gained nutritional value as it sat for days under fluorescent lights! And, not just “minor” value gains. Some vitamins doubled their concentrations. Apparently, fluorescent supermarket lights mimic the spectrum of natural sunlight, and some supermarkets keep them on all the time, 24-hours a day. Continuous light exposure allows plants to maintain photosynthesis and, of course, photosynthesis produces nutrients.
The study’s author, Gene Lester, is a research plant physiologist at the United States Department of Agriculture in Beltsville, MD. He and his colleagues chose to study spinach because it is one of the most nutritionally complete vegetables commonly available, with significant concentrations of vitamins C, A, K, E and folate.
You can read about how the research was done in the Journal of Agricultural and Food Chemistry or by going to discovery.com
Bottom line: To boost the nutritional content of spinach and other produce, researchers suggest (counter-intuitively) that consumers select packages from the front of display cases that are kept under continuous light.