Calories In/Calories Out

“Doc, why aren’t I losing weight” is question I get every once in a while and it is a subject which is actually quite simple but leads to a great deal of confusion……

Your weight, my weight, everyone’s weight is really a matter of calories in and calories out.   In other words, how many calories do you consume (calories in) and how many calories do you use up, or burn, in a day (calories out).

If  you burn more calories than  you consume…you will lose weight and if you consume more calories than you burn….you will gain weight. It really is that simple! 

Many of you have no doubt been told to “count calories” in the past.  The reason for this is so that you will know how many calories you are consuming (calories in).  As long as that is less than the number of calories you are burning (calories out), you will lose weight (calories in less than calories out).  So figuring calories in is a matter of being aware of what you put into your body, reading (and understanding) nutritional labels etc. As an aside learning to read nutritional labels is critical for success with this surgery, or any weight loss, and is something Karla will be happy to do with you during any of her nutritional counseling sessions.

The other half of the equation then is calories out, in other words how many calories do I burn up in a typical day?  This is equal to your “Basal Metabolic Rate” (which is the amount of calories your body needs just to maintain itself, even if you just stayed in bed all day) plus any calories you burn up during your activities for the day (walking around, climbing stairs, exercise etc).  You can get an idea of your basal metabolic rate (BMR) by going to the following website: 

This will calculate your BMR based on your age, weight and height so it is not exact, but will give you a ballpark figure. You might be surprised by the way, your BMR maybe less than you think!

So the surest way to lose weight is to first calculate your BMR using the website mentioned above.  Then make sure that the amount of calories you consume is less than your BMR.  If you do this and exercise it is a virtual guarantee you will lose weight as the difference between calories in and calories out will be substantial.

Let me give you a concrete example:  If you are a 40 year old woman who is 250 lbs and 5 ft 5 inches tall the BMR calculator will tell you that your BMR is 1860 calories.  If you then consume 1200 calories per day and exercise you can see how the weight will come off as the difference between calories in and calories out will be at least 660 calories (1860 -1200) and will be greater the more activity you engage in.  As your activity increases your metabolism increases and you will burn more than 1860 calories per day….and lose more weight.

You can play with the BMR calculator and see how metabolism changes with age and weight.  As you lose weight your metabolism slows down (it doesn’t take as much energy to move a lighter body).  It also slows down as you age (generally because of less muscle mass).

This explains the dramatic weight loss after surgery…particularly gastric bypass.  In the first several months after surgery the average calories in per day is probably only 300-500 calories, so there is a huge difference between calories in and calories out!

Free Seminar

It’s Free, Free, Free….I will be having a free informational seminar at my office (225 Millburn Ave, Suite 204….for those of you who don’t know) this Wednesday, August 26th at 6:30 p.m.

It is open to anyone who wants to find out the facts about weight loss surgery.  Please call us at 973-218-1990 to reserve a spot.  If you have someone in your life (friend, relative, co-worker….anyone) who has been interested in finding out about weight loss surgery, feel free to let them know…..or forward them a copy of this email.


End Quote:

“Times  fun when  your having flies”   Kermit the Frog

That’s it for this week folks, as always, thanks for reading.
Michael Bilof


Contact Information

web site address:
phone: (973) 218-1990

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Ocean County Support Group

I am not trying to exclude the North Jersey patients but I did want to remind all of the South Jersey patients that we have a once a month support group in Ocean County.