Tuesday, April 19, 2011

You Are What You Eat (Omega 3s and Meat)


As a total cop out, I'm borrowing this post from my other website, www.paleoplan.com
because I can't seem to keep up with this blog.  I've been busy going on vacation, getting engaged :) and writing for Paleo Plan.  My apologies to all of you who've been DYING for a new blog post. If you want to read my stuff, please go to Paleo Plan where there are 3 new posts per week.  Thanks!

Today I’d like to focus on something that is incredibly close to my heart: the importance of the source of your meats.  As some of you know, I was a vegetarian for about 10 years, and my reason for not eating meat was my bleeding heart for animals’ welfare.  I'm about to go PETA on you for a minute, so beware.

When I decided not to eat meat, it was because I didn’t want to have anything to do with a cut of steak that came from a cow that wasn’t quite dead while it was being butchered.  Or a chicken whose beak was melted down to a nub so it couldn’t anxiously peck the eyes out of its featherless cage-mate.  Or a pig that was fed its own feces while standing forever in a pen that just barely housed its obese body.
But after about 10 years of not eating meat, I needed the dense protein that only animal flesh can provide.  I was sick, and I needed to eat what I am “programmed” to eat.  Once I started doing that, I started healing.

However, it wasn’t like I just started eating any old meat I could find.  I began researching all the different brands of meats to find out how their animals were treated before and while they were slaughtered.  I wanted to eat animals that were given a proper environment to thrive in with clean food and pure water to nourish them.  And it turns out that the better they’re treated, the better they are for us to eat.

When a cow or (enter animal here) lives its whole life eating GMO corn and not moving around, its body takes note.  If you were to eat corn and not move around, your body would take note, too (as about two-thirds of the American population can attest to).  You get fat and so do the animals. The fatty acid content is a lot different in an animal who’s been corn fed and under-exercised than one who’s been grazing on grass and moving around its whole life.   It’s like the difference between a sedentary obese guy and a, well, hunter gatherer who walks, reaches, runs, jumps, and manipulates his environment to get what he wants.  Your whole body changes when you do these things (as some of you can attest to), and so does the fatty acid and protein content of your body.  You get more muscle and less fat.

The kinds of fatty acids you’ll find in a grass-fed cow are much different than a factory farmed animal, too.  There is more conjugated linoleic acid (CLA) and omega 3 fatty acids in grass fed animals because the grass itself contains more of those beneficial fatty acids (1).  CLA has some anticancer effects and may help you firm up that belly fat(6).  And as you probably know, omega 3 fatty acids are the kind of fats you find in abundance in fish, and they are anti-inflammatory.  I’m not just talking about the kind of inflammation you have when you’re in pain, either, like with a sprained ankle or arthritis.  Inflammation is behind everything from diabetes to cancer to migraine headaches, not to mention heart disease.  You want to fight inflammation anyway possible, and eating pasture-raised beef & eggs is one way to do it.

How Much Omega 3 Is Really In Beef?
For instance, there are 38.5 mg of omega 3's in 3.5 oz of grain fed beef, while there are 93.2 mg in grass fed.  That's almost 3x the amount of inflammation-fighting fatty acids in grass fed beef.
On the other hand, that same 3.5 oz of conventional, grain fed beef contains 285 mg of omega 6 fatty acids, which are the  pro-inflammatory counterpart to omega 3's (read: not good for you).  That's compared to 171 mg in grass fed beef (1).

 Now compared with 3.5 oz of wild caught Alaskan salmon at 2.2 GRAMS of omega 3's , there's not that much in beef (3).  To put this all into perspective further, if you were to take a good fish oil supplement to try to get your omega 3s that way, a dose is usually about 1-2 gm.  (I think the real lesson here is that we all need to be eating more fish...)
But most people in this country aren't eating salmon: you're eating burger meat and chicken (4), so we need to get our omega 3's where we can get them.  If grass fed beef is going to have almost 3 times the amount of omega 3's and almost half the amount of omega 6's, that's what I'm going to eat.

And In Eggs?
A conventional large egg houses about 33 mg of omega 3's. One study showed that a pasture raised egg contains about twice that amount (5).

Organic Isn't Necessarily Grass Fed
Even if you think you’re doing yourself a favor by buying organic beef, it doesn’t necessarily mean that the fatty acid content of this animal is much different than a factory farmed one.  Organic only means that the animal had a little more room to move around, that it was not fed anything that had been sprayed with pesticides, and that it wasn’t given antibiotics at any point in its life.
So, yes, it’s fantastic that organic animals aren’t given antibiotics in their water supply like conventional animals, and that their food isn’t laced with toxic pesticides that will end up in its muscles, which we will eat.  BUT it also means that that cow could have been standing in a fairly dirty pen for most of its life, being fed organic corn and other grain silage, which is inherently hard for it to digest.

You Are What You Eat
It’s trite, but it's true.  Do you want to eat a  Zenned out cow in a field of grass, happily munching on what IT was designed to eat, or a freaked out cow who is sick from being knee deep in other cows’ manure and eating food that makes its stomachs hurt? Do you want to eat an egg from a chicken who was so obese that she couldn’t even walk or one that was running around in a pasture with her girlfriends eating bugs out of manure piles all day?

Do you want to be eating animal products that promote illness or ones that help prevent it?  You choose.

Resources:
1. Nutritional Differences between Grass and Grain Fed Beef: Health Implication, Cordain, L.
2. http://www.ncbi.nlm.nih.gov/pubmed/20219103
3. http://www.nal.usda.gov/fnic/foodcomp/cgi-bin/list_nut_edit.pl
4. http://growinggeorgia.com/animalag/1397-per-capita-meat-poultry-and-fish-consumption
5. http://www.motherearthnews.com/eggs.aspx
6. http://en.wikipedia.org/wiki/Conjugated_linoleic_acid

2 comments:

  1. Neely...good post. What about the sustainability issues associated with eating grass fed/free range meats and wild caught seafood? Feels like a double edged sword for me. I only eat high quality meat (when I do eat it) but its just not sustainable forever...

    Sasha

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  2. I don't think anyone knows yet whether or not feeding everyone grass fed beef is sustainable, but it's a lot more sustainable than factory farms in terms of it's effects on health, the environment and the land. If you want to get philosophical about it, though, driving your gas-fueled car, living in cheaply built houses, buying avocados and other produce that's been shipped thousands of miles, taking hot showers, using plastic, and turning on your air conditioning are also not sustainable forever. We just have to pick our battles I guess.

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