I don’t know. Perhaps.

I see what you mean now. I guess by saying low-carb calories that I was implying higher-protein calories since most low-carb diets are higher in protein.

Love your blog (obviously, as I’m in the archives). Sorry for the late comment, but I had a question that I didn’t see asked in any of the comments: doesn’t the fact that the low-carb diet consisted of 24% protein and the low-fat diet consisted of 12% protein cast doubt on the idea that it was the non-protein composition responsible for the increase in metabolic output?

Thanks!

Unless I’m misunderstanding your question, I think that was the point of the article in AJCN. According to the authors, it was the increase in protein that brought about the increased metabolic output.

FYI, not on your blog roll, another blog I’ve read through and found to be quite informative (and compatible in most ways with your ideas, I think):
http://wholehealthsource.blogspot.com/

And while here, here’s something I wrote in a private forum earlier today, FYI:

An Austrian study ( http://tinyurl.com/5mz4us ) indicates that higher levels of D3 correlated with longer lifespans. Period. In other words, higher levels of D3 reduce the all-cause mortality rate. There’s simply no man-made drug that can claim anything close to this.

The study included 3,258 with an average age of 62 year, and over an average follow up of about 7.5 years just over one-fifth had died. The study concluded that people with the lowest blood levels of D were 2.5 times more likely to die from cardiovascular disease, and twice as likely to die from all remaining causes, such as cancer. Lower D levels are also associated with higher CRP and other markers of inflammation.

A second recent study (13,331 people enrolled) comes to the same conclusion, this time by the Albert Einstein College of Medicine. Can’t find a link. The lead doctor was Michal L. Melamed, M.D. if anyone wants to try to find it.

Note that various studies have reported that most Americans are deficient in vit. D, up to 95% of those in northern regions of the States. And this is one of the cheapest supplements available. There’s no reason anyone should be deficient.

Here is the link for the Melamed study:

I believe that Vit D is extremely important for good health and that it probably does decrease all-cause mortality, but neither of these studies proves it.

I’ve heard that cold water burns calories because our bodies have to heat up the water in order for it to be used. But at the same time, I’ve heard that we use some of energy keeping our temperature low enough, so wouldn’t that mean the cold water would help this process and thus not burn more calories? What do you think?

I should probably stick to mountain biking for keeping the fat low I guess

Maybe you’ll be glad to hear these posts are praised internationally.

It seems like all the words of admiration to Dr. Eades and his work have been spent out, so (although I have a great desire to) I won’t bother to say anything impressive or extraordinary, I shall simply agree and confirm what have already been said.
Being on LC diet 7 days for the first time in my life, and having read extensive ammount of articles on this subject, stil some questions remain unclear, and I found them somehow very important from the practical point of view:

1. I want to lose fat, not only weight. It comes logically to me that I have to intake less calories in the form of protein+fat (which are approx. fifty-fifty in my diet)in order to start burning body fat. Am I right? It makes no sense to me that I can eat fat+protein w/o control and still lose fat, even LC dieting.
In other words I have hard time to calculate the wise number of fat+protein calories which will lead to the most efficient fat burning regime.
If it takes long time and space to explain, maybe you just refer to a link.

2. Is prolonged ketosis per se related to health risk, irrespectively of KB concentration in the blood. I mean, is it legitimate to say there is increased blood concentration of KB, if we assume that all the excess of KB is being excreted through urine? Or more precisely, is this transient state of raised KB levels in the blood before being eliminated harmful? Then maybe it will be better to burn all the excess with exercise rather than waiting to be eliminated. OK, I know, some exercising is always welcomed. Then, is it better to take long walks for hours, or to do 30 min aerobic exercise on daily basis?
Again, besides your direct answer, I’ll appreciate if you link me to useful articles on this issue.

3. The last, but not the least, what is your professional opinion about Metabolic typing? This approach is completely new to me, just to find out that Internet is full of respective questionnaires. Of course, I couldn’t resist them, and what comes out as a result is that I belong to Protein type with recommended 50% fat:30% protein:20% carbs diet proportion for the rest of my life in order to stay slim and healthy.
Is there any reasonable scientific support for such a typing?

Well, I realized the post is dedicated to thermodynamics and weight loss and I happen to be off-topic with my questions. I apologize. I simply was not enough eager to read all the previous posts. Guru had similar questions, but when I tried given link for further explanations it didn’t work (and still doesn’t work, maybe you can check out what is going on).

Oh, I would almost miss to mention that I’m in a serious “negotiations” with my husband to start with the intermittent fasting.

Dr. Eades, I feel extremely lucky to come across to your Protein power web site.

P.S. English is not my native language. Sorry for the spelling, grammar and style mistakes.

Hi Ljubica–

MRE

Glad you enjoyed it.

MRE

Paleolithic man ate a very-low-carb diet most of his life. People who stay on low-carb diets tend to adapt and usually don’t stay in as heavy a level of ketosis as those just starting a low-carb diet. Besides, ketones are normal fuels for the body, and many tissues prefer them to anything else.

We are cutting out almost all sweets and drastically reducing the carbs in his diet so I think based on what I’m reading that we’re on the right track.

The big question that had me searching the net was created because of a difference in opinion as to what an “efficient metabolism” is. One of us says the 8 year old has a more efficient metabolism because he uses more energy but still has excess fat. One says that the 11 year old has a more efficient metabolism because his body burns his calories even though he is less active….

I hate to admit that even after reading all of the above posts I still can’t figure it out…
Can anyone help?

Thanks…..

Two people who are the same size consume the same number of calories. One of these people loses weight, the other doesn’t. The one who doesn’t lose would have the more efficient metabolism, at least as I understand it. That person’s metabolism would more efficiently store calories instead of wasting them. Efficient metabolism isn’t really a scientific term that has a specific definition. But if it did, I suspect it would be the one I just gave.

MRE