A walk down any grocery aisle in America is a study in nutritional fads: low sodium, low sugar, low carb and low cholesterol, but none as enduring and lucrative as low fat.

Last year, 12.8 percent of all new products churned out by food companies were emblazoned with a low-fat or fat-free label, according to ProductScan Online, everything from low-fat tortilla chips to cheese slices, peanut butter, refrigerated dip and hot dogs.

But with a new study this week indicating that a reduced-fat diet may not help ward off heart disease or cancer, marketing experts and some food companies say the days of the low-fat phenomenon are numbered.

Read more at http://www.theledger.com.