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Originally Posted by musicalmomma I know...the schpeal about 1-2lbs loss per week is expected with the band and is healthiest.
However, when I exercise and eat right, I lose 3+ pounds per week. Now I KNOW once I lose a significant amount of weight and get less and less obese, I should expect the 1-2lbs per week. But shouldn't a morbidly obese person (as I was at the start) expect to lose more than 1-2lbs per week, when eating right and exercising? Is it unhealthy for me to lose 3+ per week @ 237 pounds even though I'm eating enough, eating healthy and exercising? I just don't think it is unhealthy. If I were to still lose this quickly after I reach onderland, I could see reason for concern, but now?
Thoughts? |
Weight loss is just math.
You have a Basal Metabolic Rate that will fluctuate from day to day, based on your body weight and lean muscle mass.
Any exercise that you do in addition to your BMR will increase the amount of calories your body will use during the day.
Food is measured in calories, and any food in excess of your BMR plus exercise will accumulate as fat. Conversely, if you eat fewer calories than you need, you will burn stored fat and lose weight.
So, if, as an example, you have a BMR of 2,000 calories per day and do 500 calories worth of exercise per day, your total caloric expenditure will be 2,500 calories per day.
If you eat more than 2,500 calories that day you will add fat, and gain weight.
If you eat fewer than 2,500 calories that day, you will burn fat and lose weight.
Continuing the example, if you were burning 2,500 calories per day, but only ate 2,000 calories, you would have a 500 calorie deficit. At that rate you would lose 1 pound per week. (500 X 7 days = 3,500 calories. Fat is 3,500 calories per pound)
Continuing the example, if you ate only 1,500 calories that day, you would burn 1,000 calories of stored fat, which would result in losing 2 pounds per week. ( 1,000 X 7 days = 7,000 calories. Fat is 3,500 calories per pound)
If you are losing 3 pounds per week, it means you are eating 1,500 fewer calories per day than your body needs.
Bigger people will lose weight faster, because their basal metabolic rate is influenced by their body size.
That also explains why the rate of weight loss will inevitably slow as a person loses weight.