Studies Show Soy Isoflavones
We have gathered some of the most impressive human studies that show value in improving blood lipid profiles. There are many other reasons to take soy isoflavones and you may want to add soy isoflavones to your supplement program. The two most important isoflavones are genestein and daidzein. You need about 40 mg a day so read the label of your supplement carefully to see that you are getting a total of at least 40mg. of combined genestein and daidzein soy isoflavons.
Impressive Studies Demonstrating the Cholesterol Lowering benefits of Soy Isoflavones.
At the Panum Institute in Copenhagen (Am.J. Clin. Nutr. 69, 1999, p. 419-25) people were given soy protein and this lowered their LDL levels while raising their HDL levels in only six weeks with no change in diet or exercise.
At Baylor College in Houston (Am. J. Clin. Nutr. 68, 1998, p. 1385S-9S) subjects were given soy protein which, again, lowered their LDL levels while raising their HDL levels in only five weeks. It was interesting to note that in this study both people with normal and people with high cholesterol levels were included and both benefited significantly. It is difficult to get people with normal levels to reduce them even further. Even better results were obtained when the soy supplement was used with the National Cholesterol Education Program Diet, which emphasizes low fat, high fiber and complex carbohydrates.
At St. Michael’s Hospital in Toronto (Metab. Clin. Exper. 48, 1999, p. 809-16) men and women were given a low fat diet with added soy protein. Researchers found the soy supplement very much strengthened the effects of the low fat diet. In their words, “A combination of vegetable protein and soluble fiber significantly improved the lipid-lowering effect of a low saturated fat diet.”
At the University of Illinois (Am. J. Clin. Nutr. 68, 1998, p.1375S-9S) postmenopausal women were given soy isoflavones, which lowered their total cholesterol levels while raising their HDL levels and lowering their LDL levels. This was a very well done and professional study. In addition to improving blood lipid levels they found that some of the women increased their bone density and actually reversed some of the effects of osteoporosis.
A Japanese journal (Daizu Tanakushitsu 13, 1992) published a series of articles on soy protein and blood lipids in men and women. These studies were done at Nagoya, Kyushu, Tokai and Tokushima Universities, and the National Defense Medical College. These studies used different diets and different conditions while giving soy supplements to varying subjects. At all five institutions the conclusions were basically in agreement that modest soy supplementation lowered cholesterol levels and improved the ratios significantly in short periods of time.
A second study at the University of Illinois (Am.J. Clin. Nutr. 71, 2000, p. 1077-84) studied men of widely varying ages with hypercholesterolemia. Without any changes in diet or exercise they gave them soy supplements and lowered their cholesterol levels in only six weeks.
At the Dunn Nutrition Center in England (Brit. J. Nutr. 74, 1995, p. 587-601) premenopausal women were studied in depth for a full nine months. Of course their cholesterol levels improved when they were fed soy supplements with isoflavones, but they found other very positive benefits to their health as well. Their hormonal metabolism improved generally and their menstrual cycles became more regular and less problematic. This was a very unique long term study that shows there are more benefits to soy isoflavones still yet to be discovered.
The American Heart Nutrition Committee (Circulation, December 2000) advised Americans with high cholesterol to add soy protein to their diets. Dr. Erdman said that numerous studies show that soy isoflavones lower LDL, raise HDL, lower triglycerides and lower total cholesterol levels.
At Wake Forest University in North Carolina (Arch. Int. Med. 159, 1999, p. 2070-6) doctors studied the effects of soy isoflavones on men and women with high cholesterol levels. By giving them a daily supplement over a two month period they successfully lowered their LDL levels thereby improving their LDL/HDL ratios. They also lowered their total cholesterol. This study was extremely professional and very well done.
The Harvard Medical School publishes “The Heart Letter” which is a very well done monthly report on the studies regarding heart and circulatory problems and their cures. In the October 2000 issue they said that studies overwhelmingly prove adding soy to the diet lowers cholesterol and thereby lowers the risk of heart and artery disease. They went on to say that soy supplements make the blood vessels more elastic, and can actually lower systolic (the more important of the two readings) blood pressure. Basic lifestyle changes are usually the only way to lower blood pressure at all.
At Wake Forest University again (Menopause 5, 1998, p. 7-13) 51 healthy, non-hypercholesterolemic, premenopausal women were given a soy supplement with 34 mg of isoflavones in a classic double blind crossover study for six weeks. Not only did they lower their total and LDL cholesterol levels but their systolic blood pressure declined as well. They said, “Soy supplementation in the diet of …women resulted in significant improvements in their lipid and lipoprotein levels, blood pressure and perceived severity of vasomotor symptoms.
We could go on with study after study on real people that were given soy isoflavone supplements in clinics around the world, but you can easily see these benefits are well established clearly in the medical field. Soy isoflavones improve our blood profiles significantly, improve the quality of our arteries and are even shown to lower blood pressure. All of these effects have been obtained without any change in diet or exercise. When combined with other proven supplements, a low fat diet and reasonable exercise such as walking the effects are much more dramatic.
It has become popular in certain circles, on the Internet and from some misguided “experts” to talk about the “dangers” of soy. This misinformation has become rather popular despite the fact that there are no valid references to verify their claims of “dangerous side effects” from eating soy foods and taking soy supplements.
It should be obvious that the billions of Asian people who have eaten soy foods as a basic part of their diets for centuries, have never suffered from these supposed “side effects”. You can see from the many clinical studies that there are never negative side effects from the patients taking these supplements. We have only discussed the benefits of soy isoflavones for blood lipids. Entire books have been written about the benefits of soy isoflavones for many other conditions. In fact, new studies are done every day and new benefits are discovered all the time.
The Evidence is Broadly Conclusive; Soy Isoflavones Effectively Lower Cholesterol Quickly without Side Effects
Here is a natural product which contains 60 mg of isoflavones. This formula also contains beta-sitosterol, red rice, and beta-glucan. Each has unique cholesterol lowering qualities; together they provide the most effective natural method of reducing unsafe cholesterol quickly. It’s surprisingly affordable and has no side effects or drug interactions. Click here to get a special price and free bonus offer .