OMAHA, Neb.--(BUSINESS WIRE)--It turns out pricey diet meals aren’t the only convenient portion-controlled meal option for weight management, according to new research presented by ConAgra Foods, Inc. (NYSE: CAG) at Experimental Biology (EB) 2015. The study led by Kristin Reimers, PhD, RD, ConAgra Foods, found that ounce for ounce, single-serve frozen meals widely available in grocery stores often provide the same or better calorie and nutrient benefits as meals available exclusively through we