Grass Fed Beef: Weatherbury Farm, Omega 3's & 6's

Meat from grass-fed animals has two to four times more omega-3 fatty acids than meat from grain- fed animals. Omega-3s are called "good fats" because they play a vital role in every cell and system in your body. For example, of all the fats, they are the most heart-friendly. People who have ample amounts of omega-3s in their diet are less likely to have high blood pressure or an irregular heartbeat. Remarkably, they are 50 percent less likely to suffer a heart attack. ⁽¹⁾ Omega-3s are essential for your brain as well. People with a diet rich in omega-3s are less likely to suffer from depression, schizophrenia, attention deficit disorder (hyperactivity), or Alzheimer's disease. ⁽²⁾

Another benefit of omega-3s is that they may reduce your risk of cancer. In animal studies, these essential fats have slowed the growth of a wide array of cancers and also kept them from spreading.⁽³⁾ Although the human research is in its infancy, researchers have shown that omega-3s can slow or even reverse the extreme weight loss that accompanies advanced cancer and also hasten recovery from surgery.^{(4)
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Omega-3s are most abundant in seafood and certain nuts and seeds such as flaxseeds and walnuts, but they are also found in animals raised on pasture. The reason is simple. Omega-3s are formed in the chloroplasts of green leaves and algae. Sixty percent of the fatty acids in grass are omega-3s. When cattle are taken off omega-3 rich grass and shipped to a feedlot to be fattened on omega-3 poor grain, they begin losing their store of this beneficial fat. Each day that an animal spends in the feedlot, its supply of omega-3s is diminished.⁽⁶⁾ The graph below illustrates this steady decline.

Data from: J Animal Sci (1993) 71(8):2079-88.

When chickens are housed indoors and deprived of greens, their meat and eggs also become artificially low in omega-3s. Eggs from pastured hens can contain as much as 10 times more omega-3s than eggs from factory hens.⁽⁷⁾

It has been estimated that only 40 percent of Americans consume an adequate supply of omega-3 fatty acids. Twenty percent have blood levels so low that they cannot be detected.⁽⁸⁾ Switching to the meat, milk, and dairy products of grass-fed animals is one way to restore this vital nutrient to your diet.

References
1. Siscovick, D. S., T. E. Raghunathan, et al. (1995). "Dietary Intake and Cell Membrane Levels of Long-Chain n-3 Polyunsaturated Fatty Acids and the Risk of Primary Cardiac Arrest." JAMA 274(17): 1363-1367.
2. Simopolous, A. P. and Jo Robinson (1999). The Omega Diet. New York, HarperCollins. My previous book, a collaboration with Dr. Artemis P. Simopoulos, devotes an entire chapter to the vital role that omega-3s play in brain function.
3. Rose, D. P., J. M. Connolly, et al. (1995). "Influence of Diets Containing Eicosapentaenoic or Docasahexaenoic Acid on Growth and Metastasis of Breast Cancer Cells in Nude Mice." Journal of the National Cancer Institute 87(8): 587-92.
4. Tisdale, M. J. (1999). "Wasting in cancer." J Nutr 129(1S Suppl): 243S-246S.
5. Tashiro, T., H. Yamamori, et al. (1998). "n-3 versus n-6 polyunsaturated fatty acids in critical illness." Nutrition 14(6): 551-3.
6. Duckett, S. K., D. G. Wagner, et al. (1993). "Effects of time on feed on beef nutrient composition." J Anim Sci 71(8): 2079-88..
7. Lopez-Bote, C. J., R.Sanz Arias, A.I. Rey, A. Castano, B. Isabel, J. Thos (1998). "Effect of free-range feeding on omega-3 fatty acids and alpha-tocopherol content and oxidative stability of eggs." Animal Feed Science and Technology 72: 33-40.
8. Dolecek, T. A. and G. Grandits (1991). "Dietary Polyunsaturated Fatty Acids and Mortality in the Multiple Risk Factor Intervention Trial (MRFIT)." World Rev Nutr Diet 66: 205-16

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Grass Fed Beef Health Benefits: Balanced Omega 3's & 6's