wabmester Member

If @FIT_Goat sees this, Phinney discusses Stefansson starting at about 21 minutes into the video. He discusses some information about his cause of death that I've never seen published -- apparently directly from a communication from Stefansson's physician to Phinney.

Water and sodium are intricately linked. Your kidneys should regulate both pretty well, but sometimes it takes a few days to reach balance. High sodium can lead to fluid retention in the blood -- blood volume expands. Low sodium can lead to fluid retention in tissues -- fluid leaves the blood and enters cells to maintain…

Phinney is the best! I love how he debunked Fung on protein catabolism during fasting. I get tired of doing that by myself. :)

Right. You're not eating a series of macronutrients on a label. You're eating a specific meal. That meal has to be torn down into those macros. Different meals take different times to digest, and the macros get released at different loads. Also, the concept of "macros" is a bit oversimplified. There are multiple kinds of…

Fire them. :)

It's a spectrum. Ketone generation starts at around 150g/d and increases as you approach 20g. Some people even shoot for zero. And there are multiple ways to boost ketone generation: fasting, exercise, and short/medium-chain fatty acids. Find a level you're comfortable with. There's no magic level. You'll know it's working…

Peter Attia is wearing a continuous glucose monitor these days (just because he's an ubergeek). He says he's discovered fascinating things about how he responds to various meals, but he hasn't yet shared the details with the world. I think he did mention that he was kind of shocked by his high glycemic response to rice,…

You'll know. Lack of hunger is a good sign. Peeing like crazy is a sign. If you experience the latter, that's a good signal to boost your sodium intake. Otherwise, headaches, fatigue, and light-headedness might be your next signs.

Don't beat yourself up. Just tell us if you still had dry eyes after eating those cheerios. :)

I guess you need to start by defining "ketosis" and then tell us what it means to be "kicked out." Ketone levels vary throughout the day. Those levels will go down due to just about any meal. If your average ketone level is > 0.5 mmol/l (or whatever) for the day, but it goes below that for 2 hours, does that mean you've…

Yes the source matters. And the person eating it matters. Glycemic response varies. Insulin response varies. Physiology doesn't read package labels.

Yeah, I think these results turn most of us into evangelists. Feels like you can run forever, doesn't it?

Yeah, they fed them corn oil and margarine. Omega-6 and trans-fats. The ratio thing is sort of speculative, but a lot of people think it's a clue. https://proteinpower.com/drmike/2016/02/03/will-the-new-dietary-guidelines-fatten-us-even-more/

Because the trans fatty acid contents of MCE study diets are not available, one could speculate that the lack of benefit in the intervention group was because of increased consumption of trans fat. Indeed, in addition to liquid corn oil the intervention diet also contained a serum cholesterol lowering soft corn oil…

They're talking about a 1961 study. Guess who did the study. Ancel Keys. :)

Sounds like they were discussing one of my favorite studies: Cahill's Starvation in Man. It's a beautiful study. They measured both venous and arterial metabolites during a month of fasting. Minimal glucose needs are about 40g/d. About half of that comes from protein and half from glycerol IIRC. Of course, that's for…

The system is so complicated, and dealing with a mixed meal is so complicated, I don't think it's possible to paint a simple picture. I guess I think of it as a "bucket brigade". There's a steady stream of nutrients, and they go where needed. Hormones signal availability. If there are no end users for the available…

I stole it from Doc Naiman: https://twitter.com/tednaiman

Homeostasis of blood glucose is designed to meet basal demand. The brain can drink 130g a day, so does that mean that 130g/d meets needs? Nope. That 130g/d is spread out over 24 hours -- the brain drinks 6g an hour. What happens to that other 124g you just ate? Glycogen stores are full, so it gets converted to fat via DNL.…

This discussion has gone way above Butter Bob's head. His message is "don't sweat the details" and "fasting will lower insulin more than any kind of meal." But GNG happens whenever substrate is available. What else is the body going to do with excess protein, for example? Metabolism isn't simple. There's no such thing as…

It can be a tough adjustment. There are multiple strategies that can work -- slow-carb, or occasional "cheat meals" that refill glycogen (I admit to "cheating" with Japanese, Thai, and Vietnamese meals once in a while). What almost certainly doesn't work is going back to cookies, bread, and other highly processed foods…

Yeah, a lot of people mention problems with nuts and cheese. But I find that a "binge" on either will lead to reduced consumption later in the day. Delayed satiety due to the protein content. I may end up skipping dinner due to snacking. People also fear a "stall" due to those foods, but I think it's just a one-time gain…

I've been avoiding ketosis for a while now, so I'm having trouble understanding the difficultly people have. 100g or so should just be a soft target. You don't have to hit it everyday. You just need to ensure you refill liver glycogen as needed. That will keep the glucose flowing smoothly for 24 hours or so and avoid deep…

I'm sure you know this, but there's no direct correlation between intake (macros or calories) and the fuel burned by exercise. Your muscles burn what they need, and that comes from local storage within the muscle. If that gets depleted, it either gets refilled or your muscle gets exhausted. The refilling can happen hours…

It depends on both your level of exertion and your level of "fat adaptation." At the highest levels of exertion (e.g., 90%+ HRmax), you'll burn mostly glucose.

Ask her if she can cite a reference. Here's a random article on the subject: http://www.lindora.com/faq/does-being-in-ketosis-while-dieting-for-weight-loss-cause-kidney-disease-or-damage/ Kidney disease is usually due to damage from high blood pressure and diabetes -- both due largely to chronic high carb consumption.

Nothing useful. It just saves you from having to post "+1 <3". And it gives the poster a warm and fuzzy feeling. :)

You're there regardless of whether the ketones are being excreted in your urine yet. And the fact that you're dumping sodium is definitely a sign. I bet your ketostix will be purple later today. :) Simple math: your brain will burn about 130g/d of glucose. Liver glycogen is less than 100g. So you'll burn off glycogen…

Your body doesn't care about percentages. It cares about specific quantities. Carbs: Anything less than 150g per day is low-carb. The lower, the better. Protein: You just need enough to maintain muscle mass. About 1g per kg body weight should do it, but more is fine. Fat: No specific goal is required. Use fat to reach…

Welcome to the group, Steve. My story is similar to yours. I slowly put on my extra weight -- averaged about 1lb per year. My goal was to improve my lipid profile, and studies suggested that losing about 10% of body weight could help. So I dropped my carbs to about 100g/d, and instead of losing my goal of 20lbs, I lost…