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You won't find a better short workout for losing belly fat. Forget about crunches and focus on this workout.
Yes, abs workout are excellent for tightening the belly and building ab muscles but they're not very effective for losing belly fat.
Strength workouts like this one if what will help you lose belly fat fast.
Don't take the easy route and use very light weight. Challenge yourself with heavy weights and that way you're guaranteed to get great results.
Enjoy the belly fat shredder workot with dumbbells.