Four Common but Toxic Chemicals to Avoid During Pregnancy, Pre-Pregnancy and Breastfeeding, Plus these are Good Healthy Insights for Us ALL!

While it was once thought that fetuses in the womb were largely protected from environmental chemicals, it’s now known that a woman’s exposure while pregnant has the potential to harm the developing baby.
In fact, a study sponsored by the Environmental Working Group (EWG) tested the umbilical cord blood of 10 newborns and found that the samples contained an average of 200 chemicals … chemicals linked to cancer, brain damage, birth defects and more.

“This is conclusive evidence that babies are being exposed to hundreds of industrial chemicals throughout pregnancy,” said Sonya Lunder, an EWG scientist, told the Associated Press. “The placenta isn’t a magic shield.”

The implications of all these chemical exposures are completely unknown, and while it’s likely impossible to eliminate all exposures (most people already have countless environmental chemicals circulating in their bloodstream), it’s a wise idea to minimize your exposure as much as possible during pregnancy and if you’re planning to become pregnant.

Here we’ve compiled a list of some of the worst chemical offenders for developing babies and their moms.

Click here to check out the list.

Fish Consumption Associated with Brain Shrinkage in Newborns

Physicians have known for many years that mercury in the human body is associated with neurological damage. Fish consumption is the main source of mercury in the human body.

Now a new video from my colleague Michael Greger, M.D.(see below) brings together several journal articles which specifically show how methylmercury in fish is damaging the human brain.

We have known for some time that there is a dose‚ a response relationship of prenatal mercury exposure and IQ. Dr. Greger’s video pointed out to me an article that appeared in the medical literature several years ago on the relation of mercury and newborn’s brains. This article specifically shows that there is a direct relationship between prenatal exposure to a low level of mercury in the mother, and the size of a newborn’s cerebellum.

Specifically in this article it was shown that “prenatal exposure to, what we consider to be, low levels of methylmercury does influence fetal brain development detected as decreased size of the newborn cerebellum.” The decreased size of the newborn cerebellum was up to 14% smaller in length.

What is the cerebellum and what does it do? First of all the cerebellum which is known as the “little brain” is the second largest part of the brain and is located near the base of the brain. Although the cerebellum accounts for only about 10% of the brain’s volume, it contains over 50% of the total number of neurons in the brain.


What is so important about this ? Traditionally the cerebellum has been considered a purely motor control device. However this is now appearing to not be true. Specifically as recently reported in Brain:The Journal of Neurology, researchers have found connections between the cerebellum and the hypothalamus in the brain. These pathways connect with neural circuits that govern intellect, emotion and autonomic function as well as sensorimotor control.

There is a condition called Cerebellar Cognitive and Affective Syndrome (CCAS). This condition occurs in adults and children with stroke or tumor involving the cerebellum. It is also seen in children born very preterm who have a small cerebellum.

The neurobehavioral deficits that occur in this condition can occur in the absence of a motor condition. They are characterized by “impairments in executive function, which includes planning, set shifting, verbal fluency, abstract reasoning, and working memory.” In addition, “impairment in spatial cognition and linguistic processing as well as a dysregulation of their affect” is seen in patients with this condition.

These latter symptoms sound very much like the symptoms that children with Autism Spectrum Disorder, and Attention Deficit Disorder (ADHD)have. We now have an epidemic in our country of neurodevelopmental disorders with an estimated one in five children growing up to have such a disorder. Could mercury be part of the cause?

Watch the video now!

So, given this new information on mercury and the fetus, my first question is how much fish, which is loaded with mercury, is good for a woman while she’s pregnant? The second question is how much mercury has been accumulated by the woman before she conceives which then comes out during pregnancy and affects the fetus and its brain?

The other interesting aspect of this research was the amount of mercury the researchers considered “high” in the mother. The so-called “high levels”, were approximately 1/3 of the level of mercury a woman would get if she ate one can of tuna per week. I find young women in my practice eating tuna sushi several times per week.

In the studies I quoted above, researchers used hair mercury, which is one indication of the body load of mercury. However we now know that not all women excrete mercury into their hair even if they have it in their body.

We realize that the best test for body burden of mercury, is a challenged urine, where a woman takes a medication that is known to be able to pull mercury out of her tissues and put it in the urine where it can be measured.

This is the exact protocol that environmental doctors have been using for so many years. And this in part is why I encourage women in my Preconception Pregnancy Planning Program to get as much mercury as possible out of their body before they conceive.

I encourage you to share this information with your friends and family who are of childbearing age. Encourage them to get off fish before and during pregnancy, and encourage them to find a doctor who can measure their body load of mercury and help clean it out, before they conceive. Nobody wants a child with a small cerebellum, now that we are realizing the importance of this major part of our brain.

Please post your comments below!

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Environmental Toxicity and Pregnancy

Cheerful beautiful pregnant woman sitting on the sofa with a bowl full of vegetables.

“Reducing exposure to toxic environmental agents is a critical area of intervention for obstetricians, gynecologists, and other reproductive health care professionals. Patient exposure to toxic environmental chemicals and other stressors is ubiquitous, and preconception and prenatal exposure to toxic environmental agents can have a profound and lasting effect on reproductive health across the life course.”

I would have thought the above quote came from a textbook of environmental medicine designed for Integrative Doctors. It is the basic underpinning philosophy of my Preconception Pregnancy Planning Program, and that of the detoxification protocols that many Integrative Doctors do in their practice daily.

And yet the above quote is from the American Congress of Obstetricians and Gynecologists (ACOG), as well as the American Society for Reproductive Medicine Practice Committee! What took them so long?

In the article, they say that the National Health and Nutrition Examination Survey data from 2003 to 2004 found that virtually every pregnant woman in the United States is exposed to at least 43 different chemicals.

They are finally pointing out that these chemicals in pregnant women cross the placenta and accumulate in the fetus. They give the example of methylmercury (as found in fish) actually being concentrated with a higher amount in the fetus than in the mother.

They go on to remind us that such prenatal exposure to pesticides has been shown to increase the risk of cancer in childhood, and that adult male exposure to pesticides is linked to altered semen quality, sterility, and prostate cancer. And they point out that postnatal exposure to pesticides can interfere with all developmental stages of reproductive function in adult females, including puberty menstruation and ovulation, fertility and fecundity, and menopause.

Combine this with the recent evidence connecting these chemicals with Breast Cancer and maybe we can begin to understand the epidemic of young women with breast cancer.

ADHD symbol conceptua;l design isolated on white background. Attention deficit hyperactivity disorder symbol conceptual design

The ACOG article blatantly neglects to mention the role of these environmental toxins on the children’s nervous system, and the role it may be playing in the epidemic we have of Autism Spectrum Disorders, as well as Attention Deficit Disorder.

In the article, the American College of Obstetricians and Gynecologists and the American Society for Reproductive Medicine “join numerous other health professional organizations in calling for timely action to identify and reduce exposure to toxic environmental agents while addressing the consequences of such exposure.”

I am pleased to see that they point out that Reproductive Care Professionals should counsel their patients to avoid harmful environmental exposure, but how long will this take to bring into regular practice?

The Endocrine Society in 2009 called for improved public policy to identify and regulate endocrine disrupting chemicals and recommended that “until such time as conclusive scientific evidence exists to either prove or disprove harmful effects of substances, a precautionary approach should be taken in the formulation of Endocrine Disrupting chemical policy”

The article wisely encourages professionals who are caring for pregnant women and newborns to counsel their patients to avoid pesticides in the food they eat.

In addition they advise avoiding canned food and other dietary sources of bisphenol A. Studies have shown that such efforts can significantly reduce body burdens of toxic chemicals.

In addition they go on to say that the clinician should encourage women who are pregnant or lactating to eat fruits, vegetables, beans, legumes and whole grains every day, and to avoid fast food and other processed foods whenever possible. In addition they advise limiting foods high in animal fat. Sounds close to a Vegan diet!

I know that you, my patients and readers understand how delighted I am to see this coming out from such an official organization as the ACOG. It certainly puts wind in the sails of my and my Integrative Colleagues Preconception Pregnancy Planning Program.

My further comments on the information in this article are:

1.This article talks about reducing solvent, pesticide heavy-metal exposure during pregnancy. How about cleaning it out before? We now have the technology to measure a woman’s levels of solvents, pesticides and heavy metals and a way to medically detoxify them out before she conceives.

I am doing this work in my office, and the patients and I are gratified in the before and after measurements showing the effectiveness of the program.

It is very important before pregnancy to clean out as much of the solvents, pesticides, heavy metals in a woman. This is because during pregnancy, these toxins exit the mother’s organs and fat and are poured into the fetus.

2.It was surprising to me that the article only mentions that 43 chemicals are going into the fetus. We know from the seminal study done by the Environmental Working Group in 2005, that 287 chemicals are detected in umbilical cord blood at birth.

3. The article overlooks, as I mentioned above, the important fact that toxins stored in the mother’s fat and organs come out of the organs, during pregnancy, and go into the fetus. They are unaware that through Naturopathic Medicine techniques, we are able to detoxify most of these chemicals out of the mother’s body before she conceives.

Doing such detoxification of a woman before she conceives, require several months of detoxification. This can lead to some expense. For that reason, some women are reluctant to embark on such a program.

Unfortunately, these women are not realizing the costs of having a child with a neurological deficit. The organization, Autism Speaks estimates the cost of caring for an autistic person over his or her life is $2.3 million. Each person must decide what is best for them and their family.

Please give me your thoughts on all this information! My patients can tell me directly when they see me. My readers can leave me a comment on my blog, or Facebook page.

The ACOG article is HERE