Years ago, a teacher in Wisconsin conducted an experiment with her class (p. 31).  They took 6 normal mice, put half in each of two cages, and fed them different diets for 3 months.  One set ate whole, natural food - you know, stuff you can imagine growing, like fruits, vegetables, meat, eggs, whole rice or oats - and the other ate the stuff from the cafeteria.  The article doesn't specify, but I can imagine they mean pizza, American "cheese", Coke, hot dogs, candy, cookies, fries, mac & "cheese", white rice/noodles/buns, "riblets," waffles, canned fruit in heavy syrup, chicken patties, tater tots ...

Those mice went berserk.  While the "real food" mice continued to sleep & play normally,

At the end of the experiment, they were able to rehabilitate the mice with a return to real food.  It took three weeks. 

Another Wisconsin teacher, Sister Luigi Frigo, was inspired to do this experiment with her class - every year.  Every year, the result is the same.  One year, they tried to repeat the experiment a few weeks later, but the junk-food-turned-real-food mice refused to eat the junk the second time around.

Students in Holland performed the experiment, this time with real corn and soy vs. GM (genetically modified) corn and soy.  (Most processed foods contain corn & soy, two of the most frequently GM foods on the market.)  Similar results ensued. 

How did the first high school respond?  They changed over their school lunch menu to salads, meats prepared with old fashioned recipes, whole grain breads, & fresh fruits and vegetables.  The students drink water.  A school once described as "out-of-control" with students who were "rude, obnoxious, and ill mannered," with so many weapons violations & student disruptions that they hired a cop to be on duty full-time, underwent a total transformation.

The improvements have lasted seven years so far, and other schools are changing their meal programs with similar results.

This is exactly consistent with another school lunch program offered over 70 years ago by Cleveland dentist Weston A. Price.  While traveling around the world to study cultures still unchanged by "modern" commerce and foods, he learned that no matter what they ate, from fish, insects, & berries to meat, milk & blood (no vegetable matter at all), they were all in perfect health as long as they ate no processed foods.  No cavities, no orthodontic needs, no heart disease, diabetes, depression, obesity, or tuberculosis (the killer of the day).

As soon as they started adding in the refined grains, dry cereals, processed vegetable oils, pasteurized milk, or canned foods of the industrialized peoples around them, they started adding in the maladies, in proportion to the amount of "modern foods" they added to their diets.

So Dr. Price began a program (under Fig. 97) to feed poor children a good, solid lunch each day, even as their other meals continued to be "highly sweetened strong coffee and white bread, vegetable fat, pancakes made of white flour and eaten with syrup, and doughnuts fried in vegetable fat."  He gave them orange juice, cod liver oil, grassfed butter on fresh whole grain bread, stews of pastured meat & real broth, whole raw milk, and fresh fruits & vegetables.

Their cavities (he was a dentist, after all) stopped progressing immediately and an unexpected side benefit resulted - some of the worse students became some of the best.

We know what we have to do.