Do you consume grass fed beef, dairy, or butter? I gotta admit, when I started digging into the research, I wanted to throw in the towel quickly because this is one of those topics that can be debated pretty heavily and the research is not conclusive either. But is it ever in the area of nutrition?
A little back ground for you. Most of the beef you purchase in the store is going to be grain fed. And the dairy you buy will come from cow’s who have consumed grain feed made from soy and corn. Why? Because cows fed grain grow faster and frankly, grain is kinda like cake and ice cream to them. They love it and it’s cheaper. Win-win, right? I can see this – I have a pet rabbit and while she is supposed to eat mostly hay, she very well prefers her little rabbit food pebbles over the hay hanging in her cage that is much healthier for her digestive system. I’ve read the grain feed isn’t good for her if she eats too much and in fact, I’m pretty sure she’s addicted to the stuff. She’s kinda fat actually.
Back to the cows though. Why should we care what they eat? More importantly, does it really matter? I mean, I’m a dietitian and even I wonder this because I have better things to do than worry about what the cows ate before their milk was turned into butter and melted on my morning bagel….like my obese pet rabbit, my child’s missing homework (again), and the fact that I haven’t made time to get my oil changed in six months (true story.)
Well one reason I believe it’s getting attention is because the standard American diet (aka SAD) is so low in healthy omega 3s fats (the kind that helps lower inflammation in the body and protect against heart disease). It is a proven fact that grass fed beef products are higher in omega 3 fats than grain fed. However, that does not mean eating a grass fed hamburger is a high source of omega 3 fats. In fact, in a four ounce hamburger patty, you will only get 80 milligrams of omega 3 fats. I’m not impressed. The best sources remain fatty fish like salmon (~1700 milligrams in three ounces), walnuts (~2600 milligrams in 1/4 cup), and flax seed (~1600 milligrams in 1 tablespoon.) Problem is, when is the last time you ate any of those items? And do you eat them daily? I don’t.
Let’s break it down though. Because it goes deeper, much deeper. There are different types of omega 3 fatty acids, and this is where I was tempted to throw in the towel. But I pressed on.
- Eicosapentaenoic Acid and Docosahexaenoic Acid (EPA and DHA): these are the two heavy hitter omega 3 fatty acids that our body can use directly. They are well known for fighting inflammation, and reducing heart disease. This is the kind found in fish. This is what you want.
- Conjugated linoleic acid (CLA): Grass-fed butter contains five times more CLA than butter from grain-fed cows. Why is that a big deal? CLA converts inside your body to DHA and EPA.
- Butyric acid: beneficial in aiding digestion and anti-inflammatory properties. It is a short chain fatty acid found highest in amounts in high quality butter, ghee, and raw milk among other types of foods. Fun fact: it is responsible for the smell of vomit. Doesnt that make you want to run out and buy some butter now?
- Alpha linolenic acid (ALA): small amounts are converted to EPA and DHA. This is the kind primarily found in grass fed beef. Much larger amounts are found in walnuts and flaxseeds, as stated above. But evidence shows you really need the EPA and DHA to be used by the body.
What’s the bottom line here though? From my research, there isn’t any hard evidence that grass fed butter or dairy will improve one’s heart disease risk when substituted for the grain fed versions. I’ve written extensively on the topic of dairy in the past, check it out here. What there is evidence for, is that those in countries that are provided mostly grass fed beef and dairy are less likely to die from cardiovascular disease if they are among those who consume the highest amount of full fat dairy products. Keep in mind, these studies I linked are just observations, so they don’t necessarily prove that eating high amounts of dairy and/or beef cause a lower risk of heart attack. But they still show something.
Okay, but what else? This is where I think it really counts. So pay attention if you’ve been half reading so far. After asking around and digging more, I found that the real concern is the genetically modified organisms, aka GMOs. Recall cattle feed is made mostly from ground up corn and soy, which tastes super yummy to them. Currently, 89% of corn and 94% of soy is grown with genetically modified seeds (check it out.)
Why? So that they are resistant to the herbicide, glyphosate, aka Roundup. Well, the cows are eating it not us, so why should we care? According to this study, this widely used herbicide accumulates in the animal tissue and urine. This means it remains in the hamburgers we eat and milk we drink. That study also found that it accumulates in human tissue, by the way. This is a highly controversial topic. But there are studies suggesting glycphosate is linked to a host of health issues we are experiencing in the world today to include cancer, including non-hodgkin’s lymphoma, parkinson’s disease, birth defects, hormonal disruptions, kidney disease, and a host of other health issues. Unfortunately, the issue of GMO avoidance goes far beyond choosing grass fed beef and dairy products. But that’s for another blog post.
P.S. If you’re looking for online support with like minded moms striving to live a healthier lifestyle, you may be interested in joining my free support group here.
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Jillian McMullen, RDN, CSOWM, LDN