Thursday, December 23, 2010
More Controversy!
Hey Tess... here's one of the articles alluded to in the LA times column. It's pretty interesting to look. You're probably not interested in these details, though, and if not I'm sorry, but that's where the devil is. It shows how much each study has to be stared at to make sense, and how hard it can be to make sense of unrelated studies.
I guess if nothing else, as a friend, this shows you what a drag it is to be me.
Don't bother to read on if you don't want to see my analysis...
First, the study includes a total of 40 people. That is a very small number.
Second, it's important to segregate what they say about weight loss, fats circulating in the blood, and actual adipose tissue.
The weight before was about 210 pounds (plus/minus 20 pounds) for both grups. The high fat diet end weight was 190 (plus/minus 20 pounds) while the carb diet end weight was 195 (plus/minus 20 pounds). So, really, this study isn't making a claim about weight; the errors make the differences between and before/after indistinguishable. A better number to report would probably have been the % weight loss. This might wash out the big errors (comparing someone that was 170 with someone 210 won't reveal how each individual fared). Of course, this may have looked even worse than body mass.
The body fat was actually less in the high carb group.... 36.8% vs 38.2%... though the size of their error bars (8%) actually dwarfs any difference. The carb group had more non-fat body mass, which makes them slightly heavier overall.
Where they do see something striking is in concentrations of blood lipids. A decrease in triacylglycerols of 50% (as he said in the article). The carb group also saw a decrease of 20% (not mentioned in the article), which is also really striking. The error bars in both these numbers is 25%. Caloric reduction in general is a good thing for diabetes risk.
The other thing that's striking is the shift in the insulin response. This gets to that homeostasis thing I was mentioning before... the reduced carbohydrate load allows the body to shift to a lower insulin response: there's less sugar to import, so we require a smaller insulin response. On the other hand, the difference is response is really not too surprising: the body responds to the stimulus... less carbs, less insulin required to move fewer carbs into the cell. I bet if they looked after week1 of the study, they'd have seen the same thing.
To be fair, I think the metrics of diabetes risk is what they're emphasizing (circulating lipids). So, you can still be overweight (if I lose 20 pounds, I'll still be overweight), but reduce your risk for diabetes. Which is more important? I don't know. Being overweight but diabetes free is still probably linked to self-esteem and depression issues.
So, I guess the bottom line is that it's easy to confuse weight loss and health benefits. Also, such small studies are very hard to interpret because the errors are so large. However, it is nice to know that, even if you're too fat (at 210 myself, I can say that's too fat), you can still avoid risk for diabetes!
In the end, for me, the article is about how 210 pound people go on 2000 calorie diets for 12 weeks. I wish I could do that with a house full of pumpkin pies, candied yams, mashed potatoes, fudge and rolls.
Anyway, sorry! But thanks for posting the link, it was useful and fun for me!
bg
We Have a Controversy!
"Hey Tess, this is obviously unsolicited, so sorry and feel free to ignore. I do teach metabolism, and have thought a bit about all this, not that I'm positioning myself as an Authority. But reading your post, well it made me think. What I will say overall is that its really hard for *anyone* to look at the nutritional science of the past 10, 20, 30 years and come up with definitive conclusions. I'm pretty suspicious of attempts to do so, though obviously an Answer is what everyone is after. Not that scientists are the only ones who can/should interpret the science, either...
Anyway, as to insulin:
Insulin's job is not to store fat. Its job is really to respond to sugar concentrations in the blood, and one of its principal duties is to induce import of glucose into the cell. When there's a dietary influx of carbohydrates (like the chocolate chip cookies I've been working through), that's a signal that the 'fuel level' is high, and it's time to store it away for future use. On the one hand, insulin induces storage of carbohydrates as glycogen (particularly in the liver). On the other hand, when glycogen levels are adequate, insulin stimulation leads to synthesis of lipids. This is the trouble! Excess carbohydrate is going to be stored as fat... the simplest-to-grasp reason is that, calorie-for-calorie, fat takes up less space... fat doesn't have to be bathed in water, like carbohydrate polymers such as glyogen do... for this and other reasons, fat is a better energy storage medium. Also, the liver has limited glycogen storage capacity, whereas we have lots of adipocytes for storing fat distributed all over the body. There are other effects of insulin on gene expression, etc... In the end, insulin is part of a 'homeostasis system' that works to keep energy levels constant. Incidentally, that tendency towards homeostasis makes it hard to lose the weight we've gained.
So insulin is good! Import of carbohydrates is good! Storage of glycogen and lipids is good! Loss of sensitivity to insulin (and the resulting health problems including perhaps obesity and CHD) is most likely the result of difficulties that arise from chronic overingestion of calories (of carbohydrates perhaps most specifically, but of food in general) and concomitant underconsumption (use of) those calories in exercise.
As for the Western diet, I just wanted to say that indigenous American and Asian diets are not lacking in carbohydrates: those non-western cultures gave us corn and rice, after all! Again, my impression is that it's this over/under problem that leads to issues of obesity, and thence to the other problems... As for the refined carbohydrate thing, I tend to think of it like I do the high-fructose corn syrup thing. Fructose is fructose - it all goes into the same energy production pathway - the problem is the amount of it we ingest. All plant fuel storage carbohydrates are made of glucose, and glucose is what insulin causes to be imported into the cell, whether the grain has had the bran removed or not. We just need to eat less of them to avoid storing them as fats.
I guess I just wanted point out that it's not carbohydrates per se that lead to insulin dysfunction, but overconsumption of these and other foods. Our lives depend on carbohydrates. Too, I think (having not read the book) that statement about 'everything we believe about a healthy diet is wrong' could be a bit hyperbolic. What's really problematic, I tend to think, is the search for a diet 'Answer' other than moderate eating and exercise (this, from a fat, lazy hedonist).
The books may have covered all this stuff, and I'm just being a didact (in fact, I know I'm a didact, so f@$& me!). I have enjoyed your blog... and the Taube book's in our library, so I'll check it out... I hope you don't mind my note, though, and I won't mind if you tell me to piss off! I totally respect your quest... my own quest focuses on finding time to do anything resembling exercise. Hopefully you take or leave my input without getting to irritated with me!"
Meanwhile, here's an article from the LA Times that summarizes what I've read better than I ever could:
http://www.latimes.com/health/la-he-carbs-20101220,0,5464425.story
Monday, December 20, 2010
My Primal Inspiration
Also see her next post: Primal in Paris.
She's been on the low carb primal path for awhile and has more to say than I do, plus she's a more sophisticated writer, so you might enjoy checking out her blog as well.
Cheers!
Carbs are Bad
Now that I am paying attention to this, it's turning up all over the place: carbs make you produce insulin. Insulin's job is to store fat. In short, grain is bad for you. Sad, isn't it? Have you heard all the studies of the indigenous cultures that had little or no incidence of obesity, cancer or diabetes or other "diseases of civilization" until a Western diet was introduced? Then it all went to hell. What exactly was introduced with that Western diet that compromised health so dramatically? Carbohydrates.
If you want more information about The Primal Blueprint without reading the book, check out Mark Sisson's website: www.marksdailyapple.com. Also, if you want another take on the same idea, Loren Cordain wrote The Paleo Diet. I haven't read it, but my impression is he has a stricter approach, more restrictive, less fun; plus he says no dairy! That crosses a line.
Monday, August 30, 2010
Signing Off
Well, my faithful readers, I believe this is my last post. I have said everything I set out to say, and more. This whole thing is definitely a process, and I still have a big stack of books on my bedside table to read about these and related issues. Perhaps I will have some post scripts in the future, but for all intents and purposes, the I am writing today just to wrap things up.
I have enjoyed the journey of exploring all of these issues and writing this blog so much. I feel like I have some momentum, so I am wondering what will be next for me. I have thought of turning this work into a small book, or a workshop. Either one will require a better name, so please let me know if you have any suggestions!
I hope you have found something in this blog useful or inspirational or educational, and I am also wondering what is next for you. I would love to hear from you about both of these questions: what is next for me, what is next for you?
Please let me know if you’ve tried anything I’ve suggested, what’s been helpful, what hasn’t. I’m very curious about what works for others. I know for myself, the basic goal setting is key, however tedious. I know I need to go back and re-read the beginnings of my blog and follow my own advice. When I am really setting and tracking small and reasonable goals is when I see the most change. Some of those changes are permanent; some need maintenance. Just thinking “I should exercise and eat mindfully”
is not enough for me!
I’d also love to hear any other feedback and if you have any opinion about whether I should try this material in a different venue, and if so, what kind? What would be the most useful for the most people, do you think? Or should I just stop now and cut my losses?
Like I said, I have enjoyed writing this so much. The fact that ANYBODY read my blog at all is just such a bonus! I am very grateful to all of you who have spent some time at www.skinnymamasdontdiet.blogspot.com. Thank you for your time and interest, and may you carry on with mindfulness and motivation!
Wednesday, July 7, 2010
The Political Approach to Weight Management
Well, I have actually said all I had set out to say. My goal was to review the “three-legged stool” of weight management that I learned in my aforementioned class: eating, exercising and self care. So there you go.
But wait! There’s more!
Somewhere along the line, during the months of writing this blog, I saw the movie “Food, Inc.” Now I thought I was a pretty savvy shopper, a pretty “green” consumer and a pretty knowledgeable voter. Well I have to say, this movie taught me a thing or two! I mean I knew the Food Industrial Complex was evil; I just didn’t know how evil...
If you have never seen “Food, Inc.,” run right out and rent it. I’d go so far as to say it changed my life. At the very least, it significantly changed the way I think about food--which is a pretty basic element of life. It will offer you all kinds of information about food that you will wish you didn’t know, and you will curse me, but you will eat with informed consent. You will make wiser food purchases. You will be healthier, and so will the Earth. This is important!
I can’t begin to cover all the information in this movie or any of the books I’ve read since (which I will mention later), so let me just implore you to educate yourself about the food industry and pay attention to what you’re eating and where it comes from. Every choice you make about what to eat makes a political statement. Food is big business. It’s not just about what you put in your mouth: it’s about where your money goes. It’s not just about your own health, but the health of animals, farmers, the planet.
I was surprised to realize what a large movement there is toward “slow food,” sustainable farming and ethical eating. Some of it gets complicated. The “organic” movement has been so successful that the food industry has started to take notice of this quickly growing market, hence the new organic sections at Wal-mart (I’ve never been in a Wal-Mart, so this is hearsay!). This is referred to as “industrial organic.” With organics becoming big business, think of all the acres of agricultural land that is not being treated with pesticides: hoo-ray! BUT, big business has, of course, undermined the whole original concept of organic farming. “Organic” no longer encompasses all it used to. Organic beef does not mean grass-fed beef. Organic pork does not mean humanely-raised pork. Organic vegetables do not mean sustainably grown vegetables. Organic just means without pesticides, and that’s a good thing, but such a small part of the picture.
If you want a very thorough, comprehensive and fascinating account of all of the issues, read “Omnivore’s Dilemma.” I am still plodding through it myself. It’s very detailed, but it’s also sort of the bible of sustainable food. It’s author, Michael Pollan, is oft-quoted in “Food, Inc.”--which is like the “Omnivore’s Dilemma”’s cliff notes--and will be oft-quoted by the end of this post.
I’m also working through the book “Animal, Vegetable, Miracle” by beloved author Barbara Kingsolver. If you’re not familiar with it, it’s an account of her family’s one-year commitment to eating locally and seasonally. They move to a farm and eat only what they and their neighbors produce themselves. I was having a hard time reading it straight through, so now I’m reading it month by month, as it was written. Like “Omnivore’s Dilemma,” it’s very detailed, very informative and very well-written. It inspired me to try to eat as seasonally and locally as possible, although I’m not about to move my family to a farm to do it. (My day job isn’t quite as flexible as hers is!)
We can hardly grow anything edible up here in these sandhills, but I have begun frequenting the plethora of local farmers’ markets much more regularly and checking produce to see where it was grown before I buy it. I also bought three inspiring seasonal cookbooks. I’d never given much thought to seasonality before since you can pretty much get any food any time of year--but how does that happen? The average meal in the US travelled 1500 miles to reach its eater’s plate. If it’s not in season locally, then it must have come from somewhere far away.
Eating seasonally and locally is a great way to reduce your carbon footprint and our dependence on oil. Next time you’re fretting over the oil spill, stop and think about how much petroleum it took to get your lunch to you. According to Pollan, “The food industry burns nearly a fifth of all the petroleum consumed in the US (about as much as automobiles do.) Today it takes between seven and ten calories of fossil fuel energy to deliver one calorie of food energy to an American plate.” He says only a fifth of the total energy used to feed us is consumed on the farm; the rest is spent processing the food and moving it around.
It’s not just transportation though. It’s processing and packaging, too. This is where the term “organic” lulls you into a false sense of security. Here’s one more Pollan quote to make you stop and think the next time you reach for that pre-washed package of lettuce and think you’re a “green” consumer because it’s organic: “A one-pound box of pre-washed lettuce contains 80 calories of food energy....growing chilling, washing, packaging and transporting that box of organic salad to a plate on the East Coast takes more tan 4600 calories of fossil fuel energy, or 57 calories of fossil fuel energy for every calorie of food. (These figures would be about 4 percent higher if the salad were grown conventionally.)”
Often it comes down to a choice between organic and local/seasonal. At first I was very stumped by this, but the more I read, the more I opt for local. Since organics have become big business, the regulations to be certified are more demanding, difficult and expensive--and in some cases absurd--prohibitive for many small, independent farmers. But small farms are more likely to grow food in the original spirit of the organic movement--humanely and sustainably.
Let me quote Pollan one last time to sum this up: “ It would...be a mistake to assume that the word “organic” on a label automatically signifies healthfulness, especially when that label appears on heavily processed and long-distance foods that have probably had much of their nutritional value, not to mention flavor, beaten out of them long before they arrive on our tables.”
The more I learned about this, the more inspired and discouraged I got at the same time. I felt both empowered and overwhelmed by all the information. The fact is, we are part of a society that processes, packages and transports its food, and it’s pretty hard to get away from that. It’s just like when you vote: it’s challenging to get enough information to feel confident that you really always know what you’re voting for. And it’s almost as difficult to always know where you’re food comes from and how it was made and what that means. Thankfully, more and more information is available to us, but unless you’re Barbara Kingsolver, you’re probably going to have to compromise a little!
One book that helped me simplify all these issues into some practical decision making at the grocery (natural food, of course!) store, was a straightforward little book called “Sustainable Food,” (which I happened to purchase at said natural food store). Another book which takes a simple and practical approach is Mark Bittman’s “Food Matters.”
I was drawn to “Food Matters” because I’ve been a fan of Mark Bittman’s cookbooks. Apparently at some point in his foodie career, he ran across a report that said global livestock production is responsible for about one-fifth of all greenhouse gases--more than transportation. This apparently got his attention, and he started looking into all these issues for himself, coming to this conclusion: “...a simple lifestyle choice could help you lose weight, reduce your risk of many long-term or chronic diseases, save you real money, AND help stop global warming...”
Bittman develops this whole “Food Matters” approach as an ethical, non-diet way to lose weight. He recommends we eat more plants and fewer animals and minimize highly processed foods as much as possible. It’s that simple. (By the way, his book is full of recipes and menu suggestions if you’re looking for that kind of practical guidance here.”)
So you see, here we have the political approach to weight management. You’d thought I’d gotten off track, hadn’t you? But no, I just shifted to my own three-legged stool approach to weight management: practical, spiritual and political. Now I have covered it all.
Friday, June 18, 2010
Respect Your Butt
I've always had a pretty flat butt, and at some point in my 43 years, it became flat and saggy. Last time I caught a glimpse of it I was dismayed to find it is now flat, saggy and lumpy. Horrors. It's hard to love an ass like that. (Of course, it's all relative. I've seen worse!) Every once in awhile you might spot a smooth, round, perky butt, but the truth is, most butts aren't all that pretty. And why should they be? Really, why do we expect our butts to be cute? They are for sitting and shitting! Nothing cute about that.
I don't want to get too carried away, but you get the point, don't you? A body's job is to carry it's person through life. Some bodies do better than others, but they all do the best they can. Think about the miraculous complexity of a functioning body. Think of all the things that have to work right for a body to thrive. And on top of all that, we expect it to look just so? My, we are a demanding bunch.
It seems like most of us are in a constant battle with our bodies. We are quite critical, judgmental and demanding. It is as if our bodies were somehow separate from us, and somehow deliberately behaving badly (by doing such deplorable things as becoming saggy and lumpy) just to thwart us.
I think if we can take a more forgiving and appreciative tone with our bodies, if we can show a little respect, it might become easier and more natural to eat well and exercise. Although I cannot fully accept my body the way it is (I do want it to change a little, but my expectations are very realistic--I'm not trying to make it into something it's not.), I can certainly appreciate it. I respect it. I am grateful to it for carrying me through every day of my life. And that makes me want to take care of it.
For some people, this is a no-brainer, but if you are someone who is at battle with your body, it might be very helpful for you to try to adopt an Attitude of Gratitude (as they teach in my daughter's martial arts class).
So the next time you glimpse your back end and immediately start thinking mean and ugly thoughts, stop and show a little respect. Imagine what it would be like to go through life without your butt. Say thank you to your butt for doing what it does best. Be grateful to your body and take care of it so it can continue carrying you through your life as long as possible.
Thursday, June 10, 2010
On Being Zennier
One day I was driving down Highway 9 feeling exceeding frumpy. Not just frumpy, but also fat and fatigued. I worked myself up into a snit of dissatisfaction. I wanted to go buy new clothes, as if that would help. Then I stopped and noticed what I was doing, and told myself, in a slightly rude tone, "You should be Zennier!" As in, if only I could have a more Zen approach to life I would not be in this snit, if only, if only. I laughed at the irony of my silly internal dialog. I was approaching Zen Buddhism with the same whiny graspingness that I was approaching the desire to go shopping as an antidote for my unfortunate frumpiness.
I rolled my eyes at myself and moved on to something a little more productive. The being Zennier was not bad advice in and of itself. What would it mean to let go of desire--like the desire to be thinner and better dressed and more energetic--and simply accept each moment, accept my body (and my wardrobe)? Try to imagine fully accepting your body, just as it is. I felt very strongly that there was something to this, that this might indeed be the key I'd been looking for, that maybe accepting your body just as it is would unlock it's capacity to change into what you really wanted it to be. What? I might have been on to something, but I was clearly missing something.
Plus, wasn't fully accepting my body what got me into this in the first place? While I was pregnant with my daughter, I decided to do something I'd never done before: trust my body. Well, what my body told me to do during my pregnancy was eat, and, especially, to eat hot fudge sundaes. I gained 50 pounds and birthed a 10 1/2 pound baby. I continued to eat with great gusto, but breastfeeding my giant baby allowed me to lose all the weight I'd gained. It was a happy time. Then her new little teeth started to rot, and her dentist recommended I wean her. Although my body wanted desperately to keep nursing, my milk was turning her perfect little teeth to dust, so I did what I was told. Unfortunately, no one told me to stop eating for two.
As I continued to find great pleasure in eating, I simply accepted my body as it grew and grew. I thought of all my training in feminism and the impact of the media on our body images and expectations, our ideas of beauty, and I chose to be what I thought was a good feminist and a good Buddhist and just accepted my growing body for what it was.
Well, needless to say, that approach turned out to be a little misguided. There was nothing wrong with striving toward feminism and Buddhism, to be sure, but I must have been going about it all the wrong way, because I ended up too fat to be happy or healthy. I still can't quite work it all out in my head. There's something about this deep acceptance that still feels compelling and important, but if you accept your body as it is, how do you motivate yourself to set goals and make changes to help your body be happier and healthier? I'm really stuck on this, and I'm hoping someone out there is a better Buddhist than I am and can shed some light on this conundrum. (I'm not even a Buddhist, so that makes this whole circular argument even more off track!) In the meantime, I'm reading a book called "The Zen of Eating," so perhaps that will guide me. I'll let you know when I get it all figured out!
A Few More Things to Say About Relaxation
When I wrote my last post, I have to admit, I was not practicing what I preach in any way. I wrote it standing up in the kitchen cooking bacon (organic, of course) for my daughter. I apologize for not giving you my full attention. I hated re-reading the post and finding typos. But I have to take the opportunities to write when and where I find them.