Some Thoughts on Fats and Cancer Kathleen DesMaisons, Ph.D.
Some Thoughts on Fats and Cancer
Kathleen DesMaisons, Ph.D.
I recently began reviewing the scientific literature for the relationship between fats and breast cancer. I had heard about the high fat/breast cancer connection, but thought there might be more to the story. I was so startled by what I found, that I decided to do a little more in depth review. The more I read, the more amazed I was that this information has not be released to the public in any kind of major way.
Thirty years ago, a strong correlation was made between high fat diets and the initiation of breast cancer (Rao). Mice fed corn oil had tumors that grew 3-4 times larger than those in the mice fed fat free diets. This was found to be true even on diets of 20% fat levels – not something that we could consider “high fat” at this point (Ip). Tumor weight increased proportionately to the amount of corn oil fed up to a 4% level. In the mid-eighties, researchers started to differentiate the kinds of fats people were eating and began to see that it was not the overall amount of fat per se so much as the type of fatty acids being eaten. The finding about corn oil inducing mammary tumors were repeated and fish oil was found to have an inhibitory effect (Braden).
1 1/2 cups of low fat milk, soymilk or oatmilk (I recommend oat milk because of its overall health value). Get the ones that do not have added sugars. The natural sugar found in milk or oatmilk does not present a problem. Do not use rice milk or almond milks because they seem to trigger cravings for sweet. Adjust the amount of liquid to get the taste and consistency you like.
1/2 c. juice - Choose whatever juice you find the most comforting. Some people forgo the juice and simply use more milk liquid.
2 TBS. Protein Powder (or enough to get 20- 25 grams of protein). Use one with no sugars. I like Naturade NRG the best because it is a mixed protein (whey, egg and soy) with a great taste. Naturade makes other options if you prefer all soy, or vegetable to all whey.
2 TBS oatmeal (use non-instant rolled oats). If you don't like the grittiness of them, put them in the blender first and pulverize them.
1-2 TBS flax oil or a mixed oil such as Udo's or 2 TBS flax meal (fresh ground - it goes rancid very quickly. Do not use whole flaxseeds because they are not digestible. Unless ground).
Fruit if you like - 1/2 a banana, a few frozen strawberries, some frozen blueberries.
This shake is an ideal meal for on-the-run or falling off the cliff. You should not use it more than once a day. It is fine for children to have.
If you would like to print this out and share it with your friends or your doctor, please do so.
Bibliography on Some Thoughts on Fats and Cancer
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Bougnoux P, Koscielny S, Chajes V, Descamps P, Couet C, Calais G. alpha-Linolenic acid content of adipose breast tissue: a host determinant of the risk of earlymetastasis in breast cancer. Br J Cancer. 1994 Aug;70(2):330-4.
Bougnoux P, Koscielny S, Chajes V, Descamps P, Couet C, Calais G., Braden LM, Carroll KK. Dietary polyunsaturated fat in relation to mammary carcinogenesis in rats. Lipids. 1986 Apr;21(4):285-8.
Cave WT Jr. Dietary omega-3 polyunsaturated fats and breast cancer. Nutrition. 1996 Jan;12(1 Suppl):S39-42. Review.
Cave WT Jr. Omega-3 polyunsaturated fatty acids in rodent models of breast cancer. Breast Cancer Res Treat. 1997 Nov-Dec;46(2-3):239-46. Review.
Connolly JM, Gilhooly EM, Rose DP. Effects of reduced dietary linoleic acid intake, alone or combined with an algal source of docosahexaenoic acid, on MDA-MB-231 breast cancer cell growth and apoptosis in nude mice. Nutr Cancer. 1999;35(1):44-9.
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Rose DP, Connolly JM, Coleman M. Effect of omega-3 fatty acids on the progression of metastases after the surgical excision of human breast cancer cell solid tumors growing in nude mice. Clin Cancer Res. 1996 Oct;2(10):1751-6.
Rose DP, Connolly JM. Influence of dietary linoleic acid on experimental human breast cancer cell metastasis in athymic nude mice. Int J Oncol. 1998 Dec;13(6):1179-83.
Rose DP, Connolly JM. Omega-3 fatty acids as cancer chemopreventive agents. Pharmacol Ther. 1999 Sep;83(3):217-44. Review.
Senzaki H, Iwamoto S, Ogura E, Kiyozuka Y, Arita S, Kurebayashi J, Takada H, Hioki K, Tsubura A. Dietary effects of fatty acids on growth and metastasis of KPL-1 human breast cancer cells in vivo and in vitro. Anticancer Res. 1998 May-Jun;18(3A):1621-7.
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Tou JC, Chen J, Thompson LU. Flaxseed and its lignan precursor, secoisolariciresinol diglycoside, affect pregnancy outcome and reproductive development in rats. J Nutr. 1998 Nov;128(11):1861-8.
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©Kathleen DesMaisons 2005 All rights reserved