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Messages - Warren Dew

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Diet and nutrition / Re: So, nightshades...
« on: January 16, 2010, 08:28:16 PM »
"It's going to take a while to stabilize," he said. "By 'a while,' I'm talking tens of thousands of years."

So how is it speeding up if we still need tens of thousands of years to evolve???

Because tens of thousands of years is shorter than hundreds of thousands of years or millions of years, I believe.

Also, when Harpending talks about evolution being faster in "modern" humans, his definition of "modern" is "within the past 10,000 years or so", not "within the last 100 years or so".  He's not accounting for the effects of modern medicine.

That said, evolution can still happen even if modern medicine makes everyone survive to adulthood.  In this case, evolution will favor the genes of those that have more kids.  In addition, the genes of people who have no kids will be selected out - including, for example, a lot of my friends who have elected not to have kids.

Research / Re: Meta-analysis: saturated fat with cardiovascular disease
« on: January 16, 2010, 04:43:13 PM »
The relation is more complicated than just a macro-nutrient ratio.

It's fairly clear that it's the total amount, not the ratio, that matters anyway.  China historically had high ratios of carbohydrates, but the total amount was not that high, as their total caloric intake was much lower on average than western countries.

Between this and the other tread on working out barefoot think it's time to get some thin soled shoes :)

I keep wishing Robeez would make adult shoes, I like my daughter's shoes so much.

Yoda 1396, could you link to some of the racing shoes you're talking about?  A quick web search only turns up some shoes that look to my untrained eye like normal running shoes.

I'd get some vibrams, but I think shoes without socks would be too cold for the Boston winter.

Miscellaneous / Re: The New Age Cavemen and the City
« on: January 16, 2010, 04:31:55 PM »
With childhood diabetes, maybe they are being fed non-paleo carbs: potatoes (nightshade), wheat / gluten, corn, high fructose corn syrup, sugar, etc.  Then there is also chemical pollution and parasites.

I would also note that type II diabetes before adulthood is a recent thing, postdating the food pyramid, and is strongly associated with childhood obesity.  Basically if you eat enough carbohydrates to get fat, you are at risk for diabetes.  I think it's just that children are more active and can burn off more carbohydrate, so it wasn't until recently that a lot of children were stuffed so full of carbohydrates that they got fat despite the activity.

Miscellaneous / Re: Walking too slow?
« on: January 16, 2010, 07:52:07 AM »
No, if you are dressed for it. Running shoes, etc.  If you are running down the street wearing penny loafers and dress slacks it may look weird.  I used to keep an extra pair of running shoes and clothes in my desk and work.
It was dress shoes and slacks.  Changing would eliminate the time advantage.  Plus, there's that thread that said running shoes are bad for you....

Miscellaneous / Re: The New Age Cavemen and the City
« on: January 16, 2010, 07:25:59 AM »
I think you misunderstood me. What I mean is that your diabetic friend cannot reverse his condition to the point where I am right now, where I can eat high carb for years without requiring any insulin medication (this is what I mean by reverse, not that he/she gets slightly better).

Perhaps you miswrote?  I was responding to this:

The moment you drop low carb and eat a starchy meal you'll need your insulin medication again.

I certainly agree the diabetic cannot go back to his or her younger self who could tolerate carbs for years before noticing problems.

Miscellaneous / Re: The New Age Cavemen and the City
« on: January 15, 2010, 10:06:46 PM »
Lol, tell that to a diabetic. If you are diabetic you might be able to give up on your medication if you eat low carb, that doesn't mean you reversed insulin resistance, but that you don't need as much insulin now because there are no carbs/sugars. The moment you drop low carb and eat a starchy meal you'll need your insulin medication again.

Based on the experience of diabetics I've known, you are mistaken.

If you've lost all the excess weight that was gained and adjusted to an appropriate level of exercise and to not overeating, one carbohydrate heavy meal is not an immedate problem.  The risk lies in getting addicted to carbohydrates again and binging on them again, because with the reduced insulin resistance, the carbohydrates will result in an insulin spike and hunger.

Diet and nutrition / Re: how many calories?
« on: January 15, 2010, 09:59:06 PM »
Sounds like you're getting a good start!

The fatigue is likely to be the result of your first time in ketosis - your body is adjusting to burning fats instead of carbohydrates for fuel.  You will get over that part.

If you feel hungry, you can get more calories either from lots and lots of fruit, or from more meat.  If you're eating lean cuts of meat, definitely switch to fatty cuts as the first step.

Miscellaneous / Re: The New Age Cavemen and the City
« on: January 15, 2010, 07:08:53 PM »
Insulin resistance can be reversed, possibly completely, possibly only partially, through exercise and weight loss.  Exercise depletes the glycogen in the muscles, making them able to absorb glucose again.  Weight loss depletes the triglycerides in the fat cells, making them able to absorb glucose and fat again.  I'm not sure whether the loss of liver function that converts glucose to fat is reversible.

Since people tend not to be overweight once they stabilize on the paleo diet, they tend to have better insulin sensitivity, which is to say less insulin resistance.

I don't know enough about leptin resistance to say anything there with certainty.

Food Journals / Re: Vananners' Food Journal :-D
« on: January 15, 2010, 07:03:27 PM »
I have mild to moderate rib pain on occasion which cannot be explained by my doctor but he suspects it's my gallbladder (I never went in for an ultrasound).

Sharp pains in the lower ribs on the right side?  Yes, gallstones.  I had them.  I got them out using a gall stone flush:

I didn't use some of the more arcane ingredients like HCl or black walnut tincture, but I did use the epsom salts.  And it was painful, contrary to the description, but it was worth it.

Miscellaneous / Re: The New Age Cavemen and the City
« on: January 15, 2010, 06:47:41 PM »
Insulin resistance is at least partially reversible.  I think most people become more insulin sensitive on the paleo diet, even if they don't start out diabetic.  I know I did.

It seems to work differently from leptin resistance, though.  Insulin resistance seems to happen when cells simply can't absorb more glucose, rather than because the insulin receptors are blocked.

Sarah has a significant amount of weight to lose. Eating low kcal has already stalled for her. She was previously eating low cal and overtraining, severly!

I think there's a subtle distinction between undereating in order to lose weight, and eating less when your body doesn't particularly want to eat more.  I think that when people are overweight and on a proper - that is to say, paleo - diet, their body will tell them how much to eat to get to their ideal weight.

So one question is whether Sarah is hungry on her current diet.  If she's hungry, I agree she should look for ways to add more fat.  If she's not hungry, I don't think she should eat more fat just to meet some numeric calorie goal.

okay, somewhere somewhere I think Tarlach was talking about how salt gave him gastric upset?  Is that true for others?

It's true for me.  A large amount of salt will give me a loose bowel movement within hours.  A moderate amount will make me need extra toilet paper for a day or two.

fat, fat, fat!!  My calories are either right on 2400ish or way below.  My protein is where it should be and my carbs are low or right on where they should be...but my fat is always low!  dang it!

What Il Capo said, except:  if you are trying to lose fat weight - I don't remember if that's true in your case - it's okay if your fat is low, as long as your carbohydrates are not high.  Your body will extract any deficiency from your stored reserves, which is what you want.  If you get to the point that you have insufficient fat reserves, your body will tell you by making you feel hungry - famished hungry, not carb craving hungry.

I'm following 2423 calories per day

Unless you are a body builder or an endurance athelete, it's okay if you get significantly less than 2400 kcal per day.  If you fall below 1000, you can worry.

Diet and nutrition / Re: So, nightshades...
« on: January 15, 2010, 07:29:54 AM »
How will we ever adapt to these foods (as a species) if we don't eat them?

Well, keep in mind that evolution works by selecting out the ones that aren't fit.  If we really needed to adapt to, say, grains, it would happen through the grain intolerant folks starving or dying from other bad effects of grains before they had kids.  I'm not volunteering to be one of the ones that dies, though.

Also, us adapting to the foods is not the only option.  We could adapt our foods to us.  Our current agriculture, which is based on fertilizer from fossil fuels, is not sustainable anyway; one of the things we could do is start doing more ranching and less farming.

Finally, as Tarlach points out, humans during the paleolithic spread out around the world but lived in balance with the environment for 2,000,000 years.  Then some time between 10,000 and 100,000 years ago, we changed our lifestyle and our population started growing and growing, until now when we're overrunning the available resources.  Maybe the answer is to shift back to the old ways to the extent we can.

Miscellaneous / Walking too slow?
« on: January 14, 2010, 07:14:01 PM »
I park three or four blocks from work.  Tonight, I worked late and wanted to get back to my daughter more quickly, and walking just seemed a lot and lazier than necessary.  So I ran instead.  This is in the middle of an urban area.

Is that too weird?  What if I started doing it on a regular basis, to save 10 minutes a day?

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