But according to the Special K Challenge, you could lose up to 6 pounds in 14 days if you ... and resulted in about a 4.4 pound weight loss over a 2-week period," says study author Rick Mattes ...

With that in mind, you'll want to check out the following four-week weight-loss challenge from certified personal trainer Alicia Jones. Jones tells Eat This, Not That!, "When trying to lose weight ...