Hunter Gatherer

I find myself in airports a lot.

And in some ways, airport food is worse than airplane food.  At least airplane food is so bad that it’s not even tempting.  (If they even serve it anymore.)  But when you find yourself in an airport, there are lots of unhealthy food options — and you’re typically stressed out and in a rush.

The best food options usually are:

• a nearly frozen chef salad loaded with cheddar cheese
• over- or under-ripe fruit (often apples that leave your teeth sticky with sugar residue)
• a small, $8 bag of nuts (where they try to tempt you to buy a sugar-loaded candy / dried fruit / peanut mix)
• use the opportunity to fast (a la Art De Vany)

Well, there is a welcome development!  Enter the hard-boiled egg.  I’ve recently noticed that a number of cafes, coffee shops, and even 7-11 now carry a little package with a pair of hard-boiled eggs.  This is a great way to get some convenient, real food on the go.  Cheap too.

And remember, eggs are good for you, including the yolk!

I snapped a screenshot of my Colbert interview as the view count passed Pollan’s.  I’m coming for you, Pollan.

The athletic shoe is having a rough few years.  From best-selling Born to Run, Harvard professor Dan Lieberman’s work on barefoot running in Nature, to the success of Vibram Five Fingers.  And now, the NBA: players are moving away from hightops that allegedly provide more ankle support.

"One of the reasons hightops are going out of vogue, players and injury experts say, is that there’s some research that suggests they aren’t very good at protecting your feet. NBA players missed 64% more games last season because of foot-related injuries than they did twenty years ago, according to NBA statistician Harvey Pollack."

There are multiple reasons why foot injuries could be going up:

"Players have gotten taller and heavier, the pace of the game is faster and the NBA postseason has gotten longer."

But for a piece of conventional athletic wisdom, "ankle support" has surprising little support.

"Craig Richards, a researcher at Australia’s University of Newcastle, published a 2008 article in the British Journal of Sports Medicine that catalogued academic studies in athletics and found no evidence that sneakers limited injuries. His research actually found that hightop basketball sneakers make players run slower and jump lower."

(Thanks to Cheryl for the pointer.)

Ultra-marathoner and vegan Scott Jurek was recently profiled in the NYT.   For those who aren’t familiar with Jurek, he’s a crazy sick ultra-marathoner who dominates many of these 50 mile, 100 mile, 100+ mile races.  The piece is unique in that it ignores the ethical aspects of veganism and just talks about athletic performance.  Let’s see what they have to say.

In college, his diet began to improve, and as he “saw how much disease is lifestyle related,” he began eating “real food, eating the way people have been eating for thousands of years.”

I’m all for real food, but claims to history in favor of real food is not an argument in favor of veganism.

“None of this is weird,” he said. “If you go back 300 or 400 years, meat was reserved for special occasions, and those people were working hard. 

Go back 300 or 400 years?  The 18th century is the benchmark of healthy eating?  To the extent people ate less meat back then it was because they were poor.

"Remember, almost every long-distance runner turns into a vegan while they’re racing, anyway — you can’t digest fat or protein very well.”

There are so many things wrong with that sentence I don’t know where to start.

• You can get fat or protein from plant sources, so that’s just a non-sequitur.
• Just because you’re eating carbohydrates while you’re running doesn’t mean that you’re a vegan.   It means you’re momentarily a vegetarian, I suppose.
• And even that assumes that you body isn’t using it’s own fat or protein stores.  That’s kind of like eating an animal.
• Also, most of these distance racers are eating heavily processed energy gels and bars — not "real food", much less vegan food.

All it takes is one look at a long-distance runner’s body to see that they have little muscle mass and they’re all skin and bones.  Hence my choice of picture.

He said he needed 5,000 to 8,000 calories a day, “and I get that all from plant sources. It’s not hard, either. I like to eat, and I don’t have to worry about weight management. All I need is a high-carbohydrate diet with enough protein and fat.”

My emphasis.  If you’re eating 8,000 calories a day, good luck getting it from fat and protein — you’ll be too full.  Interesting…to maximize caloric intake, eat a high-carbohydrate diet.  Wait, isn’t that what we’re told to do to minimize caloric intake too?  Which is it?

I’m not saying that Scott Jurek is eating the wrong way — God, no.  He’s a super-star athlete, his achievements are mind-blowing, and if he says a vegan diet helps him achieve that, then I’m not going to suggest otherwise.  By eating a high carbohydrate diet, he’s training his body to use carbohydrate as fuel, which is probably essential for his type of long-distance exertions.

But should we eat like Michael Phelps, with his 12,000 calories a day of chocolate-chip pancakes, energy drinks, and pizza?  No.  And we shouldn’t eat like Scott Jurek either.

Clever media people often ask me, "How do you live a paleolithic lifestyle in…New York City?"  Zing!  Oh you clever media people.  But high population density and open-mindedness can go a long way.  Here are new developments just for barefoot running: 

1. Barefoot Runners NYC now has about 175 members.  If you’re ever in NYC and want to join us, we have regular runs in Central Park on Saturday mornings at 10am and Wednesday evenings as 7pm.

2. Michael Sandler, of RunBare and author of Barefoot Running, is holding a free clinic on Wednesday, June 2nd at 6:30pm.  Nearly 40 people have signed up for that one.

3. Barefoot Ken Bob is also holding a free clinic in Central Park the following week on Tuesday, June 8th at 6:30pm.  Details here. 

4. We’ve had recent running clinics with Erwan Le Corre and Barefoot Ted too.

If you’re a beginning barefoot/VFF runner, or if you’re just intrigued by it and want to learn more, the two clinics are perfect places to get instructions from some of the best.  You don’t need to go out and buy any special shoes — it’s best to learn totally barefoot first.  And they’re free!

I received the following email from the Tough Mudder team yesterday.  The main feedback?  Make it tougher, longer (it wasn’t a full 7 miles), and create more and longer obstacles.  Full email below.  (Apparently TM and I use the same shade of grey.)  You can see my prior comments on the race and actions shots. 

I’d like to know what percentage of runners finish a marathon?  What about triathlons?  Not the elite races, just the ones for the general population.

The bottom line: If they want the race to be tough, some people are not going to be able to finish.
 

The conventional wisdom continues to crumble.  Today is red meat’s day in the sun.  Read the WSJ article here.  

"A new study from the Harvard School of Public Health suggests that the heart risk long associated with red meat comes mostly from processed varieties such as bacon, sausage, hot dogs and cold cuts—and not from steak, hamburgers and other non-processed cuts.

The finding is surprising because both types of red meat are high in saturated fat, a substance believed to be partly responsible for the increased risk of heart disease."

This is the second study in recent months where saturated fat has started to clear its good name.  The conclusion?

"A meta-analysis of prospective epidemiologic studies showed that there is no significant evidence for concluding that dietary saturated fat is associated with an increased risk of CHD or CVD."

Dr. Eades wisely remains cautious of any of these studies, even when it’s in line with your viewpoint (especially then).

The Harvard study points to salt as the culprit — but more sound advice might be: minimize processed foods of any kind in your diet.

(Thanks to David and T.J. for the pointers.)

1. Tanning is associated with optimal Vitamin D status and higher bone mineral density.  (NOTE: But as one commenter pointed out, most tanning salons try to sell you UVA, when this paper is talking about UVB.  Don’t rush to the solarium.)  And this:

2. Melissa McEwen’s poetic description of learning to hunt, dress, butcher, and eat deer

"We carved the body cavity through and through, leaving bare ribs skinless so the light could shine through. The digestive system we left for the vultures, as it belongs to them. I read recently about one of the earliest religious sites, Göbekli Tepe, a marvel considering that hunter-gatherers had no cities, but they bothered to build this temple carved with vultures, lions, and other predators of humans dead…and alive. Some theorize that the hunter-gatherers left their dead here to be eaten by these fierce flesh eating creatures. The word for this is "excarnate," which is very beautiful to me, the idea of sharing your body with other carnivores. I think of then as a time when none owned another, except in death when it was an honor to be consumed and melded with others."

3. Tyler Cowen responds to fears that food markets will be turbulent in years ahead

4. Reasons for optimism: perch in downtown Milwaukee and tilapia in Colorado

5. I’ll be in DC this weekend, and I’m looking forward to the well-regarded Mitsitam Cafe at the National Museum of the American Indian. 

"Mitsitam (pronounced Mit-see-tum) means “let’s eat” in the Piscataway and Delaware language. The 350-seat restaurant is essentially an extension of the museum, specializing in authentic Native American cuisine. The seasonal menu changes on each equinox and solstice and is divided among five Native American regions: Northern Woodlands, Northwest Coast, Great Plains, Meso America and South America."

Part of paleo is about experimentation and discovery.  This winter I started experimenting with going to the solarium….better known as the tanning salon.  That’s right, I went to the tanning salon.  Really courting medical controversy here.  So here’s why I went.

My initial reason was to get a base layer and avoid a sunburn in Mexico.  I had signed up for the MovNat course in Mexico in mid-January, and it seemed prudent to get a base layer to make it less likely I would burn in Mexico.  Sun burns are what cause the most damage to your skin and most increase your chances of skin cancer.  My sessions were purposefully short duration (<7 minutes) and low intensity, and so I needed to do a few of them before I got a noticeable tan.

Healthy Vitamin D levels decrease your overall chances of getting cancer.  My reading of the literature indicated that 1) it’s extremely difficult to get sufficient Vitamin D from food and even supplements, 2) the deadly forms of skin cancer are more rare than generally thought, 3) they don’t seem connected to sun exposure per se (sun burns are the more likely culprit), and 4) and your higher chances of getting skin cancer are far outweighed by the cancers you avoid by getting enough Vitamin D.  Use of a tanning bed — with the right UV frequencies — has also been shown to increase Vitamin D levels.  As for a few more wrinkles as I get older, that seems to be true, but I just don’t care.  For an excellent overview of what we know about the sun, Vitamin D, and cancer, watch this video by Dr. Michael Holick at BU.  (He doesn’t endorse tanning.)

My mood improved immediately.  I don’t know what to say, it just did away with the winter doldrums.  The first time I went was in early January in New York City.

Now, would it better to get moderate sun exposure?  Yes.  Would it be better to have a UV solution in winter that mimicked natural sun light? Yes. Is it a good idea to go to the tanning salon to get burnt to a crisp in 10 minutes?  No, of course not. 

Who could benefit most from going to the solarium?  People with dark skin.  Dark-skinned people are adapted for an equatorial environment with enormously high sun exposure all year round.  It’s as if they are wearing high SPF skin block all the time.  They need more sun to generate the same amount of Vitamin D as a fair-skinner person.  So black people who live in high latitudes or who live near the equator but are covered up all the time are particularly at risk.  Bad news for burqas — blocking out the sun is causing rickets and osteoporosis in Middle Eastern women.  From the abstract: