Fascinating Interview

[Paleowoman]

KGNU-How On Earth, Show: Exercise and Low Carb Diets (with Stephen Phinney) (http://hoe.kgnu.net/hoeradioshow.php?show_id=184):nod:

[mcsblues]

Nice. Good to hear from Eric Westman as well.

[Relief]

I loved this--and was so proud it was coming out of Boulder--the "Granola Head" capital of the world!

[Gabriel Guzman]

Fascinating indeed. Thanks for this great link. I already burned the interview on CD for educational purposes. I found it just so refreshing to hear about these studies again and nothing like hearing from the author himself.

For those interested, Phinney's article on Ketogenic Diets and Physical Performance can be found in the "Scientific articles good to have as reference" (http://72.32.36.211/forum/showthread.php?p=9109#post9109), in the Important Links and Resources forum.

I have a pdf file of the McLellan and Dubois article that Phinney mentioned (the one published in 1930), containing documented data on Stephanson's prolonged meat diet at Bellevue Hospital. It's a little big for the limit of the attachments but I'll be happy to e-mail it to those interested.

By the way, Phinney said something that became one of my favorite quotes now...

In science, the beliefs' structure transcends the data that support them.

[Mitra]

I finally found time to finish listening to this. Thank you, paleowoman. It was very interesting.

I was struck by one of Phinney's comments: "It's interesting that biological adaptation is there in every caucasian subject I've studied. The most difficult adaptation appears to be the mental adaptation of accepting the fact that the diet you grew on isn't the only diet that humans can use." And I loved the story about the woman who travelled to Vancouver and couldn't understand why the people there were eating plants :eek:.

[Songwriter]

Wow, that is quite an interview! For anyone who appreciates SCIENCE behind a position, this is a great find. I'm impressed.

[lyn64]

I was struck by the observation that exercise is pretty ineffective at producing weight loss. Personally exercise has always made me hungrier and eat more, so the calorie burning effect is sort of cancelled out. I'm not doubting the cardiovascular and anabolic benefits, mind you;) .

Lyn

[banshee]

While it is probably true that exercise is ineffective at producing weight loss (over what time period, though?), I think it is a very effective way to increase/produce fat/size loss. Over that last 2 months, I've been exercising diligently. I have seen very little change on the scale, but I'm seeing inches lost and I'm fitting into smaller clothes, so clearly there is fat loss occurring.

And I don't think any of the studies I've ever seen have truly measured the difference in weight that can occur over the long term with the increased metabolism that can occur with muscle building.

I too see an increase in hunger with exercise, but as long as I satisfy that hunger with protein/fat to help rebuild the muscles I tear down, I continue to see the inches disappearing.

[lyn64]

Sorry about the sloppy terminology. I did actually mean bodyfat not weight. I'd have to agree with you intuitively, and I know low carb boards are full of reports that exercise does help bodyfat loss. Which is why I was surprised to read Wortmann reporting that the clinical evidence was to the contrary. It wouldn't be the first time people's intuition was pretty wide of the biochemical mark;) . Let's not however forget that an exercise regime that includes resistance training is bound to improve bodycomposition. Not to mention that I think we're all in agreement that exercise can magnify the metabolic magic of a low carb diet encouraging fatburning. I think Wortmann's point was that the proof of the pudding
(:rolleyes: ) was in the eating. The non effectiveness of exercise as a fatburning modality in itself is pretty clear when a high carb diet is being consumed. High carb exercise junkies are almost unanimous in reporting that the bodyfat losses hardly reflect the energy expenditure - which is jus going to be exacerbated if exercise makes you even more ravenously hungry than low carb diet/exercise related hunger.

Lyn

[laughingW]

I've actually experienced a little of what Wurtman was talking about. With the morbid obesity, if I went for long times at high intensity, the cortisol and inflammation seemed to go way up and stopped fat loss.

I really liked whoever in the interview said, "what works for normal weight is not automatically applicable to the very obese .... that assumption is not borne out in the scientific literature" or something to that effect.