The physiology of weight loss is closely associated with the principle of in an energy-balancing equation: as long as one's caloric (energy) intake is less than than caloric (energy) expenditure, weight loss will be the end result.  On the same note, if energy consumption is higher than energy expenditure, weight loss will be the end result and if the two are equal, weight maintenance results.  Although this holds much merit, it isn't always true as genetics, environment, and daily life-style habits are all determining factors.

One pound of fat (1 lb.) is equal to 3,500 calories.  Therefore in order to lose a pound, a caloric deficit of 3,500 calories must be created. If a caloric deficit of 500 calories is created each day for 7 days (1 week), (7 X 500 = 3,500) a loss of 1 pound will be the result, based upon this principle. This deficit can be created through diet (eating less) and/or exercise.

The most effective, long-term and safe method that produces long-term health is by eating a balanced diet AND exercise. Exercise is the KEY to weight management. 

Have an active, healthy week! 

Your friend in fitness, 

Kelli

 Thanks Kelli!  I was wondering this while on the eliptical today.  I was tempted to try to stay on to burn 2k calories, but that seemed like a lot.

 Hi rlpthemvp,

Keep up the great motivation.  Just remember, weight loss is part of a natural, healthy way of life that includes diet and exercise and is more of a journey vs. a sprint.  Even though it may be tempting to try to "do it all at once", you don't want to risk burning yourself out or getting injured.  You'll be more effective if you really challenge yourself on the elliptical and do an intense session that gets your heart rate sustained at a higher level than going at an easier pace for a very long time or distance. The harder you work, the more calories you'll burn because your body requires more fuel.  You'll also do more to get yourself in good cardiovascular shape.

Keep it up!

Good Luck,

Paul