Candy can also have a darker side for parents who are trying to keep their kids as healthy as possible, or protect them from allergic reactions by restricting what candy their kids can have. Imagine how the kid feels when they have a food allergy and can't have candy -- seeing other kids reaping the benefits of their trick-or-treating, dumping out their huge bags of candy and sorting through what they got -- it's both sad and frustrating.

The value of good germs has been known for decades. This was epitomized last month when an international group of researchers illustrated how the use of genetically modified probiotics could prevent chronic disease. Using only a specifically designed bacterium, they could prevent obesity in mice giving them a healthier life.

Many people are deeply concerned about GMO food and hold strong beliefs that make assumptions about whether or not GMO is actually safe. Our global food supply may not be sustainable without GMO since our population is growing. With more mouths to feed, we need more food, and GMO can satisfy this need by increasing yields and allowing crops to be grown in areas that could not be farmed otherwise.