Okay. Before this gets way off track, let me bring this back to square one. We all want people to lose weight and be healthy. We're all on the same team here.
My argument began as a counterpoint to these:
Zefah, after rereading the source post, I think I may have misunderstood a portion of your argument, but the bolded I still take issue with.
My only point is that the amount of food one eats will have a tremendous effect, moreso than anything on BODY MASS. If you have 50 calories of crap, or 10,000 calories of really healthy food, you will put on mass with the 10,000 calories of really healthy food.
Now, if the discussion were something like:
"What should one eat while on a calorie restriction of 1700 calories?"
Our answers will be really similar. So lets take solace in that and see that we are on the same page for the most part.
I think the main thing people are not discussing or realizing about low-carb diets, and how effective they are, is not because they break the calories in/out equation. What makes low-carb diets effective is the ease of which people can eat less calories and still feel fulfilled.
Protein and fat are more filling than carbs. It is also harder to eat mass quantities of either in the same excess that you can with carbs. Mind you I can only speak of my personal experience so take it as you will. Eating low-carb for myself allows me to eat what my body needs and lose weight, and not have to constantly feel hungry or deprived by eating a standard high-carb but supposedly healthy diet.
No one can claim that eating less calories, regardless of the content of those calories, will not lead to potential weight loss. The effectiveness and ability of the person to stick to the dietary change, short and long term, is probably the most important thing in choosing a diet. If you can't stick to your diet change after you lose the weight, you will gain it back. I choose to eat healthy low-carb food and it makes life easier in general.
I've lost 100lbs since January, by eating low-carb foods until I was not hungry and in general being more active but nothing too rigorous. I am not normal, I have a lot of weight to lose, but low-carb diets are easier to stick to, which makes them more effective.