What is the fastest way to lose 20 pounds?

According to Yahoo Shine, an individual who is at least 40 pounds overweight can lose 20 pounds in 20 days by following a 1,500 calorie diet and a cardiovascular workout regimen. Certain foods, including red meat and white starches, are to be eliminated completely.

A personal trainer from Yahoo Shine recommends breaking down the 1,500 calorie diet into 6 small meals, 3 of which must include protein and all of which must include fruits or vegetables. For the first 2 weeks, one should do at least 30 minutes of cardiovascular activity, including running and cycling, 5 to 6 times per week. After the first two weeks, light weightlifting should be incorporated.