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 ...

TOLEDO, Ohio — Here's everything you need to know about the 2024-2025 Super Fitness Weight Loss Challenge, from registration to workouts to challenges to extra credit and more. 6:30 a.m. HIIT ...