Archive for the ‘Healthy eating’ Category

Protect your kids; buy organic

Friday, May 21st, 2010

I just read about a study, published in the journal Pediatrics this past Monday, that appears to link childhood exposure to pesticides to Attention-Deficit/Hyperactivity Disorder, known to most of us as ADHD.  The lead researcher is a Harvard faculty member with a PhD and her co-investigators were from Harvard and the University of Montreal. The reported on a government health survey from 2000 to 2004 that looked at kid's urine levels of chemicals that were breakdown products of pesticides, especially of organophosphate pesticides.

The study included 1139 kids who were representative of the U.S. population and 20% of those with with higher than average urine levels of the measured compounds had ADHD. That's twice the percentage of kids with no dectectable amounts of the same chemicals in their urine.

So what's this all mean to us. Well, my wife, a mental health therapist, has repeatedly told me the country is seeing more and more cases of ADHD. And, I had just printed copies of a report by the Environmental Working Group with a "Shopper's Guide to Pesticides." It listed two groups of fruits and vegetables, lableing them the "Dirty Dozen" and the "Clean 15."  The former group was highest in pestcide content and included celery, peaches, strawberries, apples, blueberries, nectarines, bell peppers, spinach, kale, cheries, potatoes and imported grapes: in that order.

The data was based on foods tested after they'd been washed, peeled, rinsed, whatever we normally do to them before eating them. Those procedures help, but don't get rid of pesticides and, in some cases, results in the good stuff, nutrients we'd like to ingest, going down the drain or into the compost pile or garbage disposal.

When you buy those foods, buy the organic variety.

On the other hand the clean 15: onions, avocados, sweet corn, pineapple, mangoes, sweet peas, asparagus, kiwi, cabbage, eggplant, cantaloupe, watermelon, grapefriut, sweet potatoes and honeydew melons (in that order), are the least contaminated.

We just signed up for a twenty-six-week couples share of vegetables + a twenty-three-week fruit share from a local CSA. I decided if I were going to write this post, it made sense to "put my money where my mouth was."

Think about the issue, especially if you have children or, for that matter, grandchildren.

Another good book

Friday, May 14th, 2010

I recently ordered a book by Susan Yager with the intriguing title The Hundred year Diet: America's Voracious Appetite For Losing Weight. I'm waiting for the book to come in, but the quote in The Wall Street Journal's book review section was enough to hook me. It mentioned a prior WSJ article with a great line from a physician saying, "If there were a drug with the same benefits as exercise, it would instantly be the standard of care."

Yager's book traces our preoccupation with dieting from the early 19th century to the present. Now we're tracking our calories, watching out for high-fructose corn syrup, but prior fads had us on high protein diets, chewing our food and chewing it and chewing it before we finally swallowed the mouthful, avoiding this food or that.

I'm waiting for Yager's relatively slim volume (it's only 260 pages in length), but in a few minutes I'm going to go to the gym and ride a recumbent bike for 65 minutes (or more) until I'm past the 20 miles/650 calorie mark. I'll do some stretches and work on a few machines, but for sure I'm going to ride the bike.

Lynnette in the meantime will be out walking. A recent book by Miriam Nelson and Jennifer Ackerman with the title of "The Strong Woman's Guide to Total Health" suggests brisk walking for an  hour a day. Nelson was the co-chair of the group that authored the 2008 Physical Activity Guidelines for Americans and directs a center at Tufts which concentrates on obesity prevention.

So there's two approaches to losing weight. I don't believe in "fad diets." I do believe in eating less and doing more. Our diet increasingly focuses on more fruits and vegetables and we're looking in to the options with a local CSA (community-sponsored agriculture) organization. We can purchase an "egg share," a vegetable share," a winter vegetable share," and/or a "fruit share."

Here are the concepts that appeal to me strongly: buy local, eat more of the good stuff and find some form of exercise that you're capable of and will do on a regular basis. Carve some time for it out of your busy life. Eat slower. Enjoy your dining companions conversation. Drink some water before that first bite. Serve really small portions of anything you crave that is obviously fattening.

Stay away from fad diets.

Nuts to you (and to me too)

Tuesday, May 11th, 2010

I just read an abstract in the My 10, 2010 edition of the Archives of Internal Medicine, having had my curiosity tweaked by a short piece in today's Wall Street Journal. There's a reason I always want to check the source material in the medical literature. When I was a Nephrology research fellow and attended on the clinical service a few months a year, a former patient came to me and asked if I'd read a chapter from a book his father, who had an unusual kidney disease, wanted to follow advice from. The book was written by a famous lifestyle guru and the writing and references cited were quite impressive. My patient knew that my boss was a field editor for two peer-reviewed research journals and that I, therefore, as part of my duties, critically read a half dozen articles a week prior to their being accepted (or rejected) for publication.

I picked twenty articles from the pertinent chapter and then went to the medical library. The book's author had claimed they all supported her concepts of what kidney patients should do. But, after reading them carefully, I concluded that not a single article had said what she claimed it did. Lesson learned and retained.

So the WSJ article talked about the health benefits of eating nuts, specifically tree nuts like walnuts, almonds, hazelnuts, macademia nuts, pistachios and also peanuts (which turn out to be a legume). They mentioned a series of studies on the subject.

In this case, when I found data on the lead researcher, an Internal Medicine physician who heads a deptament at a California university, I saw that he had a longterm interest in nuts and had pooled data from 25 nut consumption trials done on subjects of both genders, who were not taking any medication for elevated lipids or had normal lipids to start with.

The short form of the study's results would be eating nuts is good for you, can reduce your blood fats, if, and this is a big if, you're not obese to start with.  More nuts, roughly 2.4 ounces a day, led to better results than lesser amounts.

So I went to our big chest freezer, found a sack of walnuts and one of almonds, and we will start regularly adding nuts to our daily diet.

Salt Intake and Stomach Cancer in Young U.S. Adults

Saturday, May 8th, 2010

An interesting article appeared in last Wednesday's Journal of the American Medical Association. It reported a National Cancer Institute surveillance program which covered a large segment of the American population (about 25% of us) and reviewed over 39,000 cases of stomach cancer. The rates of new cases of this frequently fatal disease declined in almost all age groups except for while adults age 25 to 39 where it climbed almost 70%.

Now this could be just a statistical issue and the overall rates were still quite low (1 in 200,000). But, on the other hand, the one major association found was to diets, especially those high in salt and foods preserved with salt and low in fresh fruits and vegetables.

The study was looking at cancer in the "lower stomach," sometimes felt to be caused by chronic infections with H. Pylori, the same bacteria that's associated with ulcers. This is as opposed to disease in the cancer in the "upper stomach" associated with reflux disease.

Most other adults in the age range studied (25 to 80) had a clearcut decrease in rates of developing stomach cancer and black adults shared in this decrease. The authors noted that historically the incidence of this form of cancer has been higher in parts of the world where foods are often preserved with salt. Those rates have declined in many countries along with decreased rates of H. Pylori infection and the overall decrease in U.S. rates was certainly not unexpected.

We're left with an actual increase in one group. It will be further investigated, but the authors noted that salt intake has been going up in Americans in general and wondered if altered eating patterns were the culprit in the young adults in the study.

Hmm.. I've written before about our excess salt intake (for some of us it's more than twice what is recommended)  and suggested we could lower high blood pressure incidence with all of its potential for devastating consequences if we were to cut down on the salt, both by adding less and by eating less of those prepared foods that are high in sodium content.

Now we have one more reason to spurn the salt shaker and shop wisely for more fresh fruits and vegetables.

A book on food and human history

Tuesday, May 4th, 2010

I read The Economist regularly, but was unaware, until I purchased the book, An Edible History of Humanity, that Tom Standage, listed as the magazine's business affairs editor, was also an author. I've just started leafing through his 2009 book, having finished reading one of the two book club selections I needed to get through by next week. But even perusing the book over a few minutes, I've already seen it connects to a number of topics I'm interested in.

One of those is the ongoing controversy about genetically modified food. Early in Standage's book, he discusses the progression of teosinte, an ancestral form of maize, to modern corn. It seems clear to me that human selection of which crops had their seeds spread was responsible for this. The author notes that a cave in Mexico has a series of ancient cobs that vary from half an inch to eight inches in length and talks of the high likelihood that farmers of the past would have deliberately chosen those mutated maize varieties that produced larger ears.

So we've been fiddling with our food crops for a long time. Well and good in many or even most instances; basically I have no problem with the concept . But Standage also discusses the 1845 Irish potato famine where an over-dependence on a single food and a devestating crop failure caused by a fungus infection, led to a million deaths.

So on the one hand I often approve of our modifying our food sources, but, as I've mentioned in previous posts, I personally think some of the heirloom varieties of vegetables which are available in our local farmers markets just plain taste better than their super-market cousins. They also may protect us in a fashion by their being different.

I don't want us to become reliant on a single variety, a solitary kind of almost any food crop. The need to produce more corn, more tomatoes, more potatoes, may have been one factor leading to the highly productive mega-farm concept of agriculture, but I worry that it also exposes us as a country, or even as a species, to the risk of famines if a new vegetable disease and/or climate change wipes out a particular strain of a crop or multiple crops.

Is this at all a realistic issue? We now have highly developed, well-connected sources of production and shipping of food items, but we also have a burgeoning human population and the threat of global warming, derided by some, but strongly concurred with by many.

I'm in favor of keeping multiple food sources and expanding our choices whenever possible.

That's enough for today; I realize I've tried to connect some dots that may seem isolated from each other, but I think they're well worth cogitating over.

Working in the Low-Salt Mines

Wednesday, April 21st, 2010

We're finally catching up with reality, at least in one arena. In the past week I've read two local newspaper articles, one article in the Annals of Internal Medicine and an accompanying editorial in the same monthly journal from the American College of Physicians, all on our need to decrease our salt intake.

Those of us who've spent much of our medical careers dealing with the treatment and the consequences of high blood pressure, medically termed  hypertension, have been on a low-salt kick for years. Both of my parents and, eventually my older brother had hypertension, so I watched my blood pressure for years and, when it went up to high normal, cut way back on my salt intake. I also started to lose weight and to exercise more.

So two days ago I read an article titled "Shaking the Salt Habit." That was written for our Fort Collins paper and was followed by one today, from the Associated Press, titled "Too Much Salt: Report urges FDA to force rollback. Then there were the two medical pieces which came out in the April 20th edition of the  Annals. The editorial encapsulated the concept: "We Can reduce Dietary Sodium, Save Money, and Save Lives.

The bottom line is the American diet contains roughly twice as much salt as is optimal for health, nearly 4,000 milligrams vs. the maximum recommended of 2,300 mg. for young, healthy adults, and the 1,400 to 1,500 mg. that is the suggested maximum for people with high blood pressure, for African-Americans and for anyone older than 40. Much of the excess comes from processed foods.

Other countries have already made progress along the lines of cutting average salt intake (salt, of course, is sodium chloride, but I'm used to using either term). The UK started in 2003, and cut salt intake by an average of 9.5% The Annals article suggests if we were able to do the same, gradually perhaps so people didn't think the taste of food was inferior and started salting things at the table, we'd save lots of lives.

The consequences of hypertension include heart attacks, strokes and kidney failure. That less than ten percent decrease in our dietary salt could prevent over a half million strokes and just under a half million heart attacks in our 40 to 80-year old group. That would save over $32 billion dollars in medical costs.

The UK plans further cuts in salt intake, up to a 40% decrease by 2012. Japan, Finland, Ireland, Australia and Canada plus other countries are also implementing similar programs.

We don't cook with salt for ourselves, decrease the amounts specified in recipes when we cook for others, don't add salt at the table and tend to avoid processed foods. I wondered if we were getting enough iodine, added to most or all salt you purchase, but the salt that goes into processed foods, according to the articles I read, doesn't have idoine anyways. Plus our senior vitamins have the RDA (recommended daily allowance) for iodine anyway. So I quit worrying that we'd develop thyroid problems.

The bottom line is we Americans need to wean ourselves off our excess salt habit and doing so will both improve health and save a healthy chunk of change.

Subtle messages

Wednesday, April 7th, 2010

I was leafing through The Wall Street Journal this morning, quickly, as I got up late, will read a book for my men's book club most of the morning and then go to Loveland, eight miles south, to lunch at a restaurant I've never eaten at before. I'm going there to meet a writer friend whose book I've been proofreading.  I saw the headlines in the front section of the paper and will return to them later, but was struck by an article in the last section, the one called "Personal Journal."

The article's title was "What Your TV is Telling You to Do." That caught my attention so I read the whole thing. It's about NBC's use of the technique of "behavior placement." Instead of trying to sell you a specific product by having the star of a show drink, eat or use it, this idea is to show you a kind of behavior you may then decide, consciously or unconsciously, to emulate.

The thing that's different here is that some NBC's shows are now sending you messages, or rather signals, to recycle, exercise and eat right. Presumably they're not just doing this because it's the right thing, but, in part in least, because it will help them sell ads. TV has enormous power to get huge numbers of viewers to do something, because their favorite character does it.

In this case the stars of various shows will be exercising or eating healthy food choices. I'm going to wait and see what the outcome is and maintain a goodly amount of skepticism, but the overall concept is one I love.

For years we've been sold, via ads (which I mute and many who use Tivo skip), products that by no stretch of the imagination could be termed healthy choices. Now, finally, someone is going to try to influence us to make better choices. I'm all for it.

Things I don't want to eat

Monday, April 5th, 2010

I found an article in The Wall Street Journal recently that raised my hackles.  On March 30th, 2010 the paper talked about a food fad in Springfield, IL, quoting the owner of a local eatery there as saying, "We've made something very unhealthy even unhealthier."

Apparently the city has an area favorite, the horseshoe sandwich, which is incredible enough in its original form (large plate sized, open-face with bread, meat, lots of fries absolutely doused with melted cheese, versions ranging from pony shoes at 1,300 calories to regular horseshoes at 1,900 calories each). That many calories is the equivalent of gulping down nine jelly doughnuts according to the article. One place in Springfield briefly tried a relatively healthy version, but found it unpopular.

Now the featured restaurant came up with a  extra-grease-added format with the fries and meat inserted into a tortilla, then deep fried and finally given a river of cheese sauce. It's a 2,700 calorie horseshoe sandwich said to be equivalent to five Big Macs.

This local tradition, that is the horseshoe sandwich itself, has been around since 1928, flourished since the 1970s  and in 2009 the Springfield convention center hosted the initial World Horseshoe Cook-off.

All of which wants me to stay away from Springfield and its restaurants. I had cousins there many years ago, but, even as a once-a-year birthday "treat," the horseshoe is not for me.

For years I've been amazed at some of the food monstrosities our American fast-food places serve. I understand they're trying to get with the trend toward healthier eating and maybe they're succeeding, but here's one town where the opposite has happened. One state worker is quoted as saying, before her monthly indulgence, that she eats salad all week.

None of us is perfect in following a diet; I ate more yesterday at my relatives' home for the holiday dinner than I normally would and even ate some things (chocolate-covered apricots) that I'd never purchase for myself. But falling off the diet wagon..briefly (I'm still within my three-pound-over-target-weight limit), is one thing; eating these culinary death traps regularly is quite another. I just talked to my CPA about picking up our tax forms and, in doing so, mentioned the horseshoe. He called it "a heart attack on a plate."

So that's Springfield and its own tradition; the problem I have is what can I find to eat when I eat out elsewhere? I look carefully at menus, choose Subway if I have to eat at a fast-food restaurant on the road and usually stick to my favorite Thai place for meetings and treats. I think that our love affair with restaurant food has been a major health hazard for many of us. It's time for a change.

Even The Economist

Wednesday, March 31st, 2010

I get lots of blog ideas from The Wall Street Journal, usually from their last section, oriented to the personal and rather eclectic in content. Four days ago I was reading my copy of The Economist and was somewhat surprised to see an article in their Business section that called out for a blog post. The title of the piece was "Pepsi gets a makeover: Taking the challenge."

The focus of the article was on Pepsi's CEO wanting the firm to make products with less sugar, salt and fat. She even plans to remove all of the company's drinks that contain sugar from schools by 2012.

Bravo, I said and read on. It seems that she's gotten the message. She wants to help keep food companies (or at least hers) from the fate of their tobacco-company distant relatives, noting the latter firms have been impugned for the deleterious  health-related outcomes caused by their products.

I was unaware that Pepsi owned Quaker, but found fascinating the plans to alter their marketing of those products also. The Pepsi boss seems quite serious in her efforts, and although they clearly must be driven, in large part, by an attempt to capture/maintain market share, I applaud the concept.

I personally drink few soft drinks (One Caffeine-free Diet Coke a day), but I hope this effort by a major food company will be followed by all the others. it's about time!

An article on eating less red meat

Friday, March 5th, 2010

I got a copy of the monthly magazine Reform Judaism yesterday and read Rabbi Eric Yoffie's article titled "Guess Who's Coming to Dinner?" In it he urged a decision to reduce red meat intake by at least one fifth. When I read some of the rationale behind his recommendation, I was impressed. One table listed the average amount of water needed to produce a variety of foodstuffs; those numbers ranged from 13 liters for a tomato to 135 liters for an egg to 2,400 liters for a hamburger. We're facing a water shortage in Colorado where I live, so that got my attention.

I started thinking about the Why behind that huge quantity of water as well as the Why Not about Rabbi Yoffie's suggestions. Most of our beef, at least that available in the supermarket, comes from animals that are corn-finished. So in order to bring a cow to the slaughterhouse, most producers, wanting as much meat as possible per animal, raise them in feedlots and feed them corn for a large portion of their lives. Raising all that corn consumes a lot amount of water.

The meat industry is responsible for a goodly share of our greenhouse gases; the article mentions a U.N. paper ranking  animal agriculture above the total of all transportation modalities.  One academic has suggested that cutting our meat intake by one fifth would be the equivalent of each US citizen driving a Prius instead of an ordinary, non-hybrid automobile.

At that point I thought, "For once I'm ahead of the game." Lynnette and I each bought a Prius at the end of 2006 and, as I've previously said in one of my blogs, we've cut our red meat intake markedly in the last three years. We've also purchased non-corn-finished meat, splitting a bison with three other families and recently trying some Beefmaster beef from a Colorado company that grass feeds and finishes all their animals.

Well that's a good start, but I still need to be careful of my portion control when I do eat red meat; Michael Pollan's Food Rule #23 says, "Treat meat as a flavoring or special occasion food." He's concerned about the other consequences increasingly linked to red meat; those include heart disease and some forms of cancer.

I think Lynnette is making a vegetarian dinner while I'm writing this; tonight I'll be content to eat no meat at all, red or otherwise. It seems like that is a good start on cutting my water use and staying healthy.  (more…)