When it comes to convenient and nourishing snacks, you can't beat an apple. It's a satiating option you can grab on your way out the door to run errands, or throw into your lunch bag for work. Fortunately, apples are also available year-round in the U.S. and loaded with vitamins, minerals, fiber, and antioxidants—all the nutrients your body needs to fend off viruses and other infections and ailments.
So, does an apple a day really keep the doctor away? The jury is still out on that one, but 2015 research showed that a…