The Truth About Soy Foods

Below is an article written by Dr. Mercola, with information regarding soy, with information regarding healthy and harmful kinds of soy.


If you were to carefully review the thousands of studies published on soy, I strongly believe you would reach the same conclusion as I have - which is, the risk or consuming unfermented soy products FAR outweigh any possible benefits.

Notice I said unfermented soy products.

For centuries, Asian people have been consuming fermented soy products such as natto, tempeh, and soy sauce, and enjoying the health benefits. Fermented soy does not wreak havoc on your body like unfermented soy products do.

Unfortunately, many Americans who are committed to healthy lifestyles have been hoodwinked and manipulated into believing that unfermented and processed soy products like soy milk, soy cheese, soy burgers and soy ice cream are good for them.

How Did Soy Foods Become So Popular?

If it seems like soy foods appeared out of nowhere to be regarded as the "miracle health food" of the 21st century, it's because they did.

From 1992 to 2006, soy food sales increased from $300 million to nearly $4 billion, practically overnight, according to the Soyfoods Association of North America. This growth came about due to a massive shift in attitudes about soy. And this shift was no accident - it was the result of a massive investment in advertising by the soy industry that's been wildly successful.

Soy is indeed big business, very big business.

From 2000 to 2007, U.S. food manufacturers introduced more than 2,700 new soy-based foods, and new soy products continue to appear on your grocer's shelves.

According to the survey Consumer Attitudes About Nutrition 2008 (by the United Soybean Board):

- As of 2007, 85% of consumers perceive soy products as healthful
- 33% of Americans eat soy foods or beverages at least once a month
- 70% of consumers believe soybean oil is good for them
- 84% of consumers agree with the FDA's claim that consuming 25 grams of soy protein daily reduces your risk of heart disease

This is a tragic case of shrewd marketing and outright lies taking root among the masses with the end result of producing large profits for the soy industry and impaired health for most who have been deceived into using unfermented soy long-term.

As you can see from the extensive list of articles below, there is a large amount of scientific research showing that soy is not the nutritional panacea of the 21st Century.

The Dark Side of Soy

The vast majority of soy at your local market is not a health food. The exception is fermented soy, which I'll explain more about later and even worse GMO soy that is contaminated with large pesticide residues as the reason it is GMO is so they can spray the potent toxic herbicide Roundup on them to improve crop production by killing the weeds.

Unlike Asian culture, where people eat small amounts of whole non-GMO soybean products, western food processors separate the soybean into two golden commodities - protein and oil. And there is nothing natural or safe about these products.

Dr. Kaayla Daniel, author of The Whole Soy Story, points out thousands of studies linking soy to malnutrition, digestive distress, immune-system breakdown, thyroid dysfunction, cognitive decline, reproductive disorders and infertility - even cancer and heart disease.

Here is just a sampling of the health effects that have been linked to soy consumption:

- Breast cancer
- Brain damage
- Infant abnormalities
- Thyroid disorders
- Kidney stones
- Immune system impairment
- Severe, potentially fatal food allergies
- Impaired fertility
- Danger during pregnancy and nursing

Soy proponents will argue that soy-based foods (they lump the fermented ones with the unfermented) will protect you from everything from colon, prostate and breast cancer to strokes, osteoporosis, and asthma.

But said enthusiasts never mention the studies that illuminate soy's downside and all of the dangers posed to your health, which are based on sound research.

Another unfortunate fact is that 80% of the world's soy is used in farm animal feed, which is why soy production is contributing to deforestation. Some soy propagandists have suggested that the solution to this is for all of us to become vegetarians - a reckless recommendation rooted in total ignorance about nutrition - whereas a far better solution is a major overhaul in how farm animals are fed and raised.



What Soy Products are Good For You?

I want to be clear that I am not opposed to all soy. Soy can be incredibly healthful, but ONLY if it is organic and properly fermented.

After a long fermentation process, the phytate and "anti-nutrient" levels of soybeans are reduced, and their beneficial properties become available to your digestive system.

You may have heard that Japanese people live longer and have lower rates of cancer than Americans because they eat so much soy - but it's primarily fermented soy that they consume, and it's always been that way.

Fermented soy products are the only ones I recommend consuming.

These are the primary fermented soy products you'll find:

- Tempeh, a fermented soybean cake with a firm texture and nutty, mushroom-like flavor.
- Miso, a fermented soybean paste with a salty, buttery texture (commonly used in miso soup).
- Natto, fermented soybeans with a sticky texture and strong, cheese-like flavor.
- Soy sauce, which is traditionally made by fermenting soybeans, salt and enzymes; be wary because many varieties on the market today are made artificially using a chemical process.

Please note that tofu is NOT on this list. Tofu is not fermented, so is not among the soy foods I recommend.

Vitamin K2: One of the Major Benefits of Fermented Soy

One of the main benefits of fermented soy, especially natto, is that it is the best food source of vitamin K2. Vitamin K2 is essential to preventing osteoporosis, cardiovascular disease, and diseases of the brain such as dementia, and protecting you from various cancers including prostate, lung, liver cancer and leukemia.

Vitamin K acts synergistically with vitamin D to keep you healthy.

Vitamin K is sometimes referred to as the "forgotten vitamin" because its benefits are often overlooked. It was named after the word "Koagulation," to reflect its essential role in blood clotting. In fact, the enzyme nattokinase - derived from natto - is safer and more powerful than aspirin in dissolving blood clots, and has been used safely for more than 20 years.

If you enjoy natto or some of the other fermented soy foods, you can get several milligrams of vitamin K2 from them each day (this level far exceeds the amount of vitamin K2 found even in dark green vegetables).

Unfortunately, the health benefits of many of the fermented soy foods fall by the wayside because many Americans do not enjoy their flavor.

If you don't want to consume natto to get your vitamin K2, the next best thing would be to use supplemental vitamin K2. Remember vitamin K must be taken with a source of fat in order to be absorbed.

Dr. Mercola (www.mercola.com)