Hi Percy,
There's one big issue I'd like to enter into the conversation. If calories-in/calories-out is wrong, if it's really the food categories rather than the calories consumed that matter, then where do the extra calories go in a low carb diet?
Well, I'm not sure. The low carb diet would not have high calorie sugars so it may be that the calorie intake by the body is slowed down, allowing them to be used to power the muscles (hence the reported higher activity levels?) rather than being dumped into fat storage because the demand for muscle use is low when the calories are all taken in with a high loading of calories.
I do have more energy, btw, but I can't be sure if this is a result of the diet or a result of being 16 months off chemo because the chemo saps your energy and depressed my level of energy below normal. I struggled with low energy levels from the chemo since the first time in 2005 (has it been that long?), and this year and the last year (since I started the diet) is the first time I feel relatively normal, energy wise. The last chemo was a new type and did not seem to affect my energy like the previous ones, so that may also be part of the equation to my energy levels this year. I certainly would not be able to do the work on the house that I have been doing with the energy levels I had 2006 to 2009.
Many people report being more energetic and less hungry on a low carb diet, so one possibility is that the extra calories were consumed by additional activity. Whether true or not, I don't believe there's any compelling research for or against this.
A little bit more energy leading to a little bit more activity can produce larger consumption of calories than just the activity alone. IIRC studies on exercise have shown that the effect of exercise on metabolism last for hours after the exercise is finished.
Another possibility is that it is excreted. I don't know whether this is a reasonable possibility, but again, I'm unaware of any compelling research.
That would be relatively easy to measure, I would think, but asking people to bring in poop samples may not appeal . . .
So that's my big question: On a low carb diet where you're still consuming the same number of calories, what happens to them?
It's possible that it goes to added muscle mass - I am stronger and have more endurance than I did a year ago. This still adds some weight, but muscle is more dense, so a little more muscle adds a little weight but not much volume.
. . . and you do lose weight.
I am more concerned with my girth than my weight, as I believe it more accurately indicates fat levels.
This website calculates a simplistic BMI
BMI Calculator: Measure Body Mass Index and Fat
quote:
Body Mass Index Calculator
How Healthy Is Your Weight?
Your BMI can tell you if you’re carrying too much, too little or just the right amount of body fat
Note that this does not account for different body types and is really a simple estimate.
When I put in 5'-8" and 175 lbs I get a BMI of 26.7 and it says
quote:
Your body mass index (BMI) is between 25.0 and 29.9, suggesting that you are overweight. Nearly two-thirds of Americans have a BMI in the overweight range.
When reviewing your BMI results, keep in mind that a BMI has its limits. For instance, BMI can overestimate body fat in athletes or others who have a muscular build. It’s also wise to review results in light of your gender because the recommended amount of body fat differs for men and women.
So my physical activity and muscles may account for
some of the BMI, but I have no way of knowing how much it is affected.
My waist going from 32" to 34" tells me that I've slid back towards overweight.
If I put in 165 lbs I get 25.1, just barely into the the overweight range. and looking at pictures of me at that time, I cannot see this as being overweight:
If they had an input for waist size that would be a little more accurate in this regard, being able to differentiate between athlete and couch potato by the weight distribution (I have seen one BMI calculator that had a body type selection, but nothing to input waist size). For instance, my butt size is
significantly smaller to the point where pants can fall off without a belt.
The weight I've regained seems to be more centered on the belly than evenly distributed, accounting for the waist increase.
I think 165 to 170 lbs is an reasonable range for me to target, and am working on getting back down there (less couch more bike).
Enjoy