3 Reasons Why You're Not Losing Weight
Why Weight Loss is Harder for Some People than for Others
-- By Dean Anderson, Fitness & Behavior Expert
People who have more weight to lose may also drop the pounds more quickly in the beginning of a weight-loss program. This is because the more you weigh, the more calories you burn during any given activity. (Walking with an extra 50 pounds on your frame is harder than walking with 20 extra pounds of weight.) A person who weighs more can also cut more calories from his or her diet without jeopardizing the body's ability to function efficiently. If you weigh 300 pounds, you may need 3,500 calories per day or more to maintain that weight; cutting 1,000 calories from your diet (down to 2,500/day) will let you safely lose 2 pounds per week. But if you weigh 150 pounds, you may only need 1,800 calories to maintain your weight, and if you try to cut the 1,000 calories from your diet (down to 800/day), your body won't have enough fuel and your metabolism will slow down drastically, making fat loss harder, not easier. Therefore a person with less weight to lose needs to aim for a smaller calorie deficit, which will translate to a slower rate of weight loss.
Likewise, factors like age and body type can affect how fast you can shed extra pounds. Older people, for example, often lose weight more slowly, perhaps because of hormonal changes and/or because they have less muscle mass or may be less physically active.