Tuesday, November 6, 2012

Isoflavones are a subclass of flavonoids bacterial diseases in poultry but with a much more limited


Soyfoods have long been prized among vegetarians for both their high protein content and versatility. Soybeans differ markedly in macronutrient content from other legumes, being much higher in fat and protein, and lower in carbohydrate. In recent years however, soyfoods and specific soybean constituents, especially isoflavones, have been the subject of an impressive amount of research. Nearly 2,000 soy-related papers are published annually. This research has focused bacterial diseases in poultry primarily on the benefits that soyfoods may provide independent of their nutrient content. There is particular interest bacterial diseases in poultry in the role that soyfoods have in reducing risk of heart disease, osteoporosis and certain forms of cancer. However, the estrogen-like effects of isoflavones observed in animal studies have also raised concerns about potential bacterial diseases in poultry harmful effects of soyfood consumption. This review addresses questions related to soy and chronic disease risk, provides recommendations for optimal intakes, and discusses potential contraindications. As reviewed, the evidence indicates that, with the exception of those individuals allergic bacterial diseases in poultry to soy protein, soyfoods can play a beneficial role in the diets of vegetarians. Concerns about adverse effects are not supported by the clinical or epidemiologic literature. bacterial diseases in poultry Based on the soy intake associated with health benefits bacterial diseases in poultry in the epidemiologic studies and the benefits noted in clinical bacterial diseases in poultry trials, optimal adult soy intake would appear to be between two and four servings per day.
While soyfoods are relatively new to U.S. consumers, bacterial diseases in poultry they have been consumed in Asia for centuries. Among western bacterial diseases in poultry vegetarians, they have been popular for many decades, largely because of their nutrient content but also because they are extremely versatile as alternatives to meat, dairy products, bacterial diseases in poultry snack foods, and can even count toward daily servings of vegetables. Although the quality of soy protein is higher than that of other legumes (protein digestibility corrected

amino acid scores for soy protein bacterial diseases in poultry from different soyfoods bacterial diseases in poultry ranges bacterial diseases in poultry from about 0.9 to 1.0) [1] and soybeans are the only legume to provide ample amounts of the essential omega-3 fatty acid, .-linolenic acid (ALA) [2], they have often been valued by vegetarians more for the ease with which they can be incorporated into the diet than their nutrient content. However, research over the past two decades has led to renewed interest in the health and nutritional aspects of soyfoods that focuses on much more than their protein and fat content.
Approximately 2,000 soy-related papers are published annually and the focus of much of this research is on chronic disease prevention. There is particular interest in understanding the possible protective effects of soy against heart disease [3], osteoporosis [4,5], and certain forms of cancer [6,7] as well as the impact of soy on menopausal hot flushes [8]. Interest in these relationships is fueled in large part by the fact that, among commonly consumed foods, soybeans and the foods made from them are essentially

unique dietary sources of isoflavones [9]. More than half of the soy-related papers published each year specifically involve these soybean constituents, which are naturally-occurring diphenolic compounds that bind to estrogen receptors bacterial diseases in poultry [10].
Although isoflavones have been associated with certain

health benefits, they are also at the heart of some of the recent controversy bacterial diseases in poultry surrounding soyfoods and have given rise to some uncertainty among both vegetarians and health professionals about the merits of adding soy to the diet [11]. Since vegetarians and especially vegans are typically

high-soy consumers, it is important to address bacterial diseases in poultry the health consequences of adding soyfoods to the diets of those eschewing all or at least some types of animal products from their diet.
This review article addresses questions related to soy and chronic disease risk, provides intake recommendations and discusses bacterial diseases in poultry potential bacterial diseases in poultry contraindications. bacterial diseases in poultry Since there are now ample amounts of clinical and epidemiological data to address these issues,

and the ability to extrapolate the results bacterial diseases in poultry from rodents to humans is always a matter of debate, the human data will be the primary focus of this review. Understanding Isoflavones
Isoflavones are a subclass of flavonoids bacterial diseases in poultry but with a much more limited distribution in nature. In soybeans and non-fermented soyfoods, isoflavones occur primarily as ß-glycosides (less than 2% is present as the aglycone). The three soybean isoflavones, genistein, daidzein and glycitein and their various glycoside forms account for roughly 50, 40, and 10 percent respectively, of total isoflavone content. A general rule of thumb for estimating the isoflavone content of a traditional soyfood is to multiple the grams of protein in that food by 3.5 mg [12] This ratio does not hold for highly bacterial diseases in poultry processed soy products since during processing considerable isoflavone content can be lost [13,14]. Throughout this text, isoflavone weights

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