How Long Should it Take a 20-Year-Old to Lose Weight?

Consider Your Physiology

The speed of weight loss depends on multiple factors. Typically, a 20 year-old has higher metabolism than someone older, but that is not set in stone. Gender, plus diet and exercise patterns, also make a difference. A sedentary 20 year-old female on a calorie restricted diet, may have a slower metabolism than an active, well-fed 30 year-old male.

Understand Healthy Weight Loss

For optimal results, it's best not to lose more than one to two pounds per week. People who lose weight at a faster rate may have trouble maintaining that weight loss. People who lose more than two pounds per week may also be at risk for losing muscle mass, which will adversely affect metabolism.

Bottom Line

Regardless of age, its best to aim for a healthy rate of weight loss. One pound of fat equals 3500 calories. In order to lose two pounds per week, you need to get rid of 7000 calories, or 1000 calories a day. The best option is to cut 500 calories from the diet and do an additional 500 calories of activity per day.

References

• "Personal Trainer Manual"; American Council on Exercise;1996
• "Physiology of Sport and Exercise";Jack H. Wilmore, PhD. & David L. Costill, PhD.;1999