MAINSTREAM SUPERMARKETS have traditionally strived to be all things to all people. In the age of health and wellness, however, it pays to specialize a little.
The number of products catering to consumers with special dietary needs — gluten-free foods for celiac disease, Glycemic Index items for diabetes, and dairy-free products for lactose intolerance, among others — has grown significantly over the past few years. So has consumer demand for these products.
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