Thursday, March 19, 2009

Some Foods Have Estrogen-Like Effects - Soy and Reliv

Hello Reader - Thank you for taking the time to read my blog. I am sure that those of you who care about your body and health will find the following article very interesting. More and more scientists are finding new ways to test the foods we eat and new research is showing that many of the foods we assumed were healthy, aren't. Soy is one of those foods that we assumed was healthy but really isn't. And as you know, Reliv is full of Soy. The following article was received from Dr. Mercola.

Two Food Additives Found to Have Estrogen-Like Effects

food additives, estrogen, hormones, puberty, xenoestrogens,propyl gallateScientists have developed a fast new method to identify food additives that act as "xenoestrogens" -- substances with estrogen-like effects that are stirring international health concerns.

They used the method in a large-scale screening, and discovered two additives with previously unrecognized xenoestrogen effects.

Xenoestrogens have been linked to a range of human health effects, including reduced sperm counts in men and increased risk of breast cancer in women.

The scientists used the new method to search a food additive database of 1,500 substances, and verified that the method could identify xenoestrogens. In the course of that work, they identified two previous unrecognized xenoestrogens -- propyl gallate, a preservative used to prevent fats and oils from spoiling, and 4-hexylresorcinol, which is used to prevent discoloration in shrimp and other shellfish.


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Dr. Mercola''s Comments Dr. Mercola's Comments:

I've written about the dangers of endocrine disruptors such as bisphenol A, PFOA and phthalates many times. I like to consider xenoestrogens fake estrogens but their name literally means “foreign estrogens.” Either way they are synthetic chemicals that mimic natural estrogens, and have been linked to a wide range of human health effects.

There are so many of them, and they’re used in so many common consumer products that trying to avoid them may seem like a fruitless struggle.

For example, you come in contact with hormone disrupting chemicals through:

  • Pasteurized dairy, which commonly contains bovine growth hormones
  • Soy products, which are loaded with hormone like substances
  • Plastics – many of which contain bisphenol A
  • Personal care products that contain phthalates
  • Cooking with Teflon-coated pots and pans

Now you can add certain food additives to the list – and some very common food additives at that.

Hormone-Mimicking Food Additives Recently Discovered

In the U.S., more than 3,000 substances can be added to foods for the purpose of preservation, coloring, texture, flavor and more. While each of these substances is legal to use, whether or not they are entirely safe for long-term consumption – by themselves or in combination – is a different story altogether.

The analysis published in the journal Chemical Research in Toxicology actually found not just two, but 31 potential estrogen-mimicking food additives during their search.

Of those, propyl gallate was found to act as an antagonist, and 4-hexylresorcinol as a potent transactivator. Antagonists block the binding of an agent at a receptor molecule, and transactivators increase the rate of gene expression. In conclusion the authors’ state:

“Some caution should be issued for the use of propyl gallate and 4-hexylresorcinol as food additives.”

However, I don’t think we’ll see any of them removed from the market any time soon. Propyl gallate, for example, has been used since 1948 as a preservative to stabilize cosmetics, food packaging materials, and foods containing oils and fats. It can also be found in:

  • Hair products
  • Adhesives and lubricants
  • Processed meat products and potato products
  • Chicken soup base
  • Chewing gum and candy
  • Dried milk
  • Baked goods, and more

Propyl gallate is frequently used in conjunction with BHA and BHT, which come with their own set of health hazards. These two additives also keep fats and oils from going rancid and are commonly used in processed food products such as cereals and potato chips, even though some studies have found they too, cause cancer in rats.

The other food additive mentioned above, 4-hexylresorcinol, is commonly used as an anti-browning agent in shrimp and other shellfish.

But it’s also used as a starting material to produce synthetic catecholamines, which have important physiological effects as neurotransmitters and hormones (such as epinephrine, adrenaline, norepinephrine, and dopamine).

Additionally, you can find it in common consumer products such as:

  • Pharmaceutical acne treatments
  • Anti-dandruff shampoo
  • Sunscreen lotions
  • Antiseptic mouthwashes
  • Skin wound cleansers
  • Throat lozenges

Potential Health Dangers of Propyl Gallate

In addition to being an endocrine disrupter based on this latest analysis, the results in a previous study by the National Toxicology Program (U.S. Department of Health and Human Services) showed that propyl gallate caused various types of cancer and other health problems in rats, including:

  • Thyroid tumors in male rats
  • Rare brain tumors in low-dose females
  • Prostate inflammation
  • Mostly benign tumors of the preputial gland (glands that produce pheromones)
  • Pancreatic tumors
  • Adrenal gland tumors in low-dose males

As you can see, in some instances the health effect only showed up in the low-dose groups but not in the high-dose groups, and only in either males or females – a perfect example of just how little anyone really knows about how these types of chemicals might affect your body, or the body of an infant, for example.

Potential Health Hazards of Common Anti-Browning Agent

The anti-browning agent 4-Hexylresorcinol is applied to shrimp and other crustacean seafood to prevent the development of black spots which may occur naturally.

A toxicology study by the School of Biological Sciences, University of Surrey, England, discovered that 260 mg/kg was lethal to all cats used in the study. Granted, that is a very high dose; however, based on their data, the researchers also concluded that 4-Hexylresorcinol was carcinogenic in both the 13-week and 2-year studies, and also caused a high incidence of nephropathy in mice (an autoimmune disease that affects your kidneys).

A 1984 study determined the probable lethal dose for humans to be anything above 500 mg/kg.

How to Protect Your Family

If you have children xenoestrogens are clearly something you will want to avoid. Here are some measures you can take to protect you and your children from common toxic substances that could cause them to go into puberty more than a decade before they were designed to:



Related Links:
Link Between High Soy Diet During Pregnancy and Nursing and Eventual Developmental Changes in Children




Friday, March 13, 2009

Reliv isn't a Silver Bullet - Soy Warning

""If they are radically altering their diet where they're only eating soy in the hopes that this is going to bring their cholesterol down, they're deluding themselves," said Crawford, who was not on the panel that issued the new statement." I think this statement has a lot of truth and we need to pay close attention to it. Many use Reliv assuming that it will do them good but sadly like some of our posters have noted, Reliv has not helped them. Reliv has been presented as a "Silver Bullet" but sadly this isn't always the case. While some have had positive results, is what I am concerned about is what will happen in 10 or 20 years from now by consuming these large amounts of Soy based products.


Review casts doubt on soy health benefits
JAMIE STENGLE, Associated Press

DALLAS - Veggie burgers and tofu might not be so great at warding off heart disease after all.

An American Heart Association committee reviewed a decade of studies on soy's benefits and came up with results that are now casting doubt on the health claim that soy-based foods and supplements significantly lower cholesterol.

The findings could lead the Food and Drug Administration to re-evaluate rules that currently allow companies to tout a cholestorol-lowering benefit on the labels of soy-based food.

The panel also found that neither soy nor the soy component isoflavone reduced symptoms of menopause, such as "hot flashes," and that isoflavones don't help prevent breast, uterine or prostate cancer. Results were mixed on whether soy prevented postmenopausal bone loss.

Based on its findings, the committee said it would not recommend using isoflavone supplements in food or pills. It concluded that soy-containing foods and supplements did not significantly lower cholesterol, and it said so in a statement recently published in the journal Circulation.

Nutrition experts say soy-based foods still are good because they often are eaten in place of less healthy fare like burgers and hot dogs. But they don't have as much direct benefit as had been hoped on cholesterol, one of the top risk factors for heart disease.

"We don't want to lull people into a false sense of security that by eating soy they can solve the problem (with cholesterol)," said Dr. Michael Crawford, chief of clinical cardiology at University of California San Francisco Medical Center.

"If they are radically altering their diet where they're only eating soy in the hopes that this is going to bring their cholesterol down, they're deluding themselves," said Crawford, who was not on the panel that issued the new statement.

The FDA in 1999 started allowing manufacturers to claim that soy products might cut the risk of heart disease after studies showed at least 25 grams of soy protein a day lowered cholesterol. A year later, the Heart Association recommended soy be included in a diet low in saturated fat and cholesterol.

But as more research emerged, the Heart Association decided to revisit the issue. The committee members reviewed 22 studies and found that large amounts of dietary soy protein only reduced LDL, or "bad" cholesterol, about 3 percent and had no effect on HDL, or "good" cholesterol, or on blood pressure.

They did a separate analysis of isoflavones. The review of 19 studies suggested that soy isoflavones also had no effect on lowering LDL cholesterol or other lipid risk factors.

"Soy proteins and isoflavones don't have any major health benefits other than soy protein products are generally good foods," said Dr. Frank Sacks, a professor of nutrition at the Harvard School of Public Health in Boston who led the committee. "They're good to replace other foods that are high in cholesterol."

Still, the Heart Association statement notes that soy products like tofu, soy butter, soy nuts and some soy burgers should be heart-healthy because they contain a lot of polyunsaturated fats, fiber, vitamins and minerals and are low in saturated fat.

"Soy isn't a magic bullet, but it can be a valuable contributor to a heart-healthy diet," said Jo Ann Carson, a professor of clinical nutrition at the University of Texas Southwestern Medical Center at Dallas who was not part of the panel.

It's important not to think about foods in black-and-white terms, said Dr. Michael Lim, director of the cardiac catheterization lab at Saint Louis University School of Medicine.

"There's no quick fix," he said. "Our bad cholesterol numbers would certainly get worse if instead of eating tofu burgers we went out and had hamburgers each night of the week."


ON THE NET

American Heart Association: http://www.americanheart.org