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Two Solid Reasons Vegans Should Avoid Soy

Vegan die, soy GMO fertility

For years the benefits of soy have been exaggerated in studies to make soy seem like the ultimate health food. Over time the amount of soy found in the American diet has increased, added into the food supply through animal feed and in processed foods. If you are vegan and eating tofu, oils or processed foods that contain soy and may unknowingly be jeopardizing your health.


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Soy -- it’s everywhere, it’s cheap and it is included a lot vegan dishes and processed food. But it is good for your health? Some would argue yes, but here’s why that’s not true:

There Is Too Much Soy In The Food Supply

Remarkably, soy consumption in the U.S. has skyrocketed since the early 1990s, with soy food sales climbing from $300 million in 1992 to over $4 billion in 2008. Clinical studies have shown that eating soy can lower cholesterol as well as the risk for certain types of breast and prostate cancer.

Alarmingly, new animal studies suggest that consuming large amounts of soy could have harmful effects on female fertility and reproductive development. The research showed that eating large amounts of soy’s estrogen-mimicking compounds might reduce fertility in women, trigger early puberty and disrupt development of fetuses and children. The growing body of research in recent years raises questions about possible risks to women trying to get pregnant, as well as to developing fetuses and infants who consume large amounts of genistein (an isoflavone in soy) in formula, researchers said.

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One study showed that genistein led to reduced fertility and abnormal embryo development in female mice. They were fed one to ten micromoles in their drinking water for four days. The highest doses were associated with fewer eggs that were successfully fertilized and increased cell death in developing embryos. Wen-Hsiung Chan at Chung Yuan Christian University in Taiwan conducted the study, which was published in July in the journal Reproductive Toxicology.

In another study, young female rats were fed high, medium, or low doses of genistein. Those fed the largest quantities from birth to weaning had reproductive effects later, including early puberty and irregular estrous cycles (similar to the menstrual cycle in humans). High doses also led to smaller litters.

Almost All Soy Is GMO

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Soybeans are the second-largest US crop after corn, covering about a quarter of American farmland.

According to the US Department of Agriculture, well over ninety percent of all soy in the United States is genetically modified to withstand herbicides and nearly all of them involve using Roundup. Well over ninety- three percent of all cotton, eighty percent of all the corn, and over ninety percent of all canola and rapeseed oils produced in the United States are GMO, and all of these are in vegan processed foods unless they are labeled organic.

We are highly exposed to soy since it mainly goes into feed for animals that become our meat, and fat, and ends up being used as cooking oil and in our food products. What is worse, GM soybeans have been found in a new study to be nutritionally inferior.

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Avoid Soy To be Healthier

Perhaps the most solid reason vegans should avoid soy is to protect their health. While many choose to embark on a vegan diet for ethical reasons, there is a health aspect to the movement that is substantial and significant. According to research, vegan diets offer more protection than vegetarian diets for obesity, hypertension, type-2 diabetes, and heart attacks. Therefore, it is safe to say that despite the health aspects of a vegan diet, if you're eating soy and soy products you are going cheap with your health. Avoiding processed foods,especially those that contain soy as well as replacing soy milks with almond or coconut milks can make a drastic difference in the improvement of your health.