By Deanne Shepard Having special dietary needs can make shopping for food items an extra challenging task. With certain products or ingredients to avoid, you constantly have to look for local supermarkets catering to individuals like you. Luckily, more and more grocery stores these days are assigning spaces for items that won't wreak havoc to your health. So many consumers also shop gluten free foods online, something that you may find more convenient than dropping by a supermarket. So many...