Tuesday, June 5, 2012

Chemicals That Contribute to Weight Gain


We all know that obesity is a problem, an epidemic really, especially in the US.  While, obviously bad eating habits and lack of exercise play a huge roll in obesity, various studies have found a parallel in our increasing national weight and the increase of industrial chemicals in the environment.

A recent article from Rodale,com ‘The Unbelievable Reasons you are Gaining Weight”  highlighted the strong evidence that exists showing that five types of chemicals - not just lifestyle choices-  are contributing to the obesity epidemic, making wight loss more difficult for some.

As is the case with most chemical exposure, special attention MUST be paid during fetal development.   If a pregnant woman is exposed to these chemicals (and thus exposes her unborn child) the normal development of  her child’s hormonal system  can be disrupted, promoting the development of more fat cells and predisposing the unborn child to metabolic diseases like diabetes as well as a lifetime of weight problems.


WHAT YOU CAN DO


The links between environmental chemicals and obesity are real.   While exercise and a healthy diet are of utmost importance to live a healthy life, the following steps should also be taken to avoid or at least reduce you and your munchkin’s  exposure to these chemicals that have been linked with obesity... ESPECIALLY if you are pregnant or thinking of becoming pregnant!



 1. START EATING ORGANIC
Pesticides in conventional food, specifically organophosphates used to kill insects on fruits and vegetables, interfere with the way your pancreas produces insulin, which in turn can mess with your body's blood sugar levels leading to faster weight gain and a much more difficult time loosing weight.
 
2. STOP SMOKING AND EXPOSING YOURSELF TO SECOND HAND SMOKE, ESPECIALLY WHEN PREGNANT
Yet another reason not to smoke (and are there really still people smoking while pregnant?!)! Nicotine in cigarettes acts as a "developmental obesogen,"... meaning it is a chemical that interferes with fetal development in a way that predisposes the child to obesity. In fact, studies have found that the link between mothers who smoked and childhood obesity have the strongest association between weight and environmental factors.  Second hand smoke counts too.

3. STOP DRINKING APPLE JUICE
Besides the fact that it (as all other canned juices) has way too much sugar, it is the arsenic that is the chemical of concern here.  Arsenic interferes with the way your pancreas functions and messes with your blood sugar levels, in addition to influencing how your body creates and stores fat.   Arsenic has been recently found in apple juice as well as chicken  and eggs (so buy organic!)  and rice.

4. STOP USING NON STICK PANS
According to the US Center for Disease Control and Prevention, PFOA, the chemical that is used in Teflon and other nonstick pans as well as water- and stain-repelling fabric is in 98 percent of Americans' blood, A  Danish study measured levels of this chemical in pregnant mothers and then compared those with their children's body weights 20 years later. Mothers who'd had the highest body levels of PFOA were three times as likely to have overweight or obese daughters than mothers with the lowest levels.
Switch to cast iron or stainless steel.

5.  STOP EATING CANNED FOODS
Many of us (especially if you have been reading my blog!) know about the dangers of BPA - a endocrine disrupting chemical that is found in plastics and the resin lining of canned food.   Now a new chemical has been identified in food can lining called Bisphenol A diglycidyl ether (BADGE for short).  A recent study  in Environmental Health Perspectives explains, even extremely low levels of BADGE promote weight gain by turning other non-fat cels into fat.    Obese people have more fat cells than non-obese people.

The study’s author, Bruce Blumberg, PhD, from the University of California–Irvine explains  “early in life—particularly when a baby is developing in a mother's womb—is when most of the damage from exposure is done, reprogramming the child's normal bodily functions and setting him or her up for weight problems later in life.”   Once this baby is born they will not necessarily be doomed to be fat  BUT they will definitely have a harder time  staying fit.

Even though BADGE is especially damaging in unborn babies, it can also affect adults.  So it is never too late to cut out canned food.

Friday, June 1, 2012

Peanut butter & fire retardant sandwich?


What is your go-to quick lunch option for you or your kids?  For most parents, it would be fair to say, that it is either a peanut butter sandwich or maybe a turkey or cold cut sandwich. 

Earlier today, before I sat down to read this new study on flame retardant exposure, my son had refused to eat his barley risotto and I had to give him my quick “go - to” lunch:  an (organic) peanut butter sandwich!

Bad news:    a new study  by the University of Texas sampled common foods found in grocery stores in Dallas,  and found that nearly half of the sampled peanut butter and cold cuts, (as well as turkey, fish, beef and other fatty foods), contained traces of a flame retardant commonly used in the foam thermal insulation of building walls.   WHY ARE THERE FLAME RETARDANTS IN OUR CHILDREN’S (and our!) FOOD?????

THE FLAME RETARDANT
  • The specific flame retardant that was uncovered, hexabromocyclododecane (HBCD),  is a type of brominated flame retardant used in thermal insulation in buildings and in electric equipment.
  • According to the  U.S. Environmental Protection Agency,  “HBCD is highly toxic to aquatic organisms. It also presents human health concerns based on animal test results indicating potential reproductive, developmental and neurological effects.
  • By late 2012 the EPA is considering adding HBCD to their “Concern List of Chemicals”
  • It has been found in umbilical cord blood and breast milk, which is especially worrisome since, as is the case with all chemicals of concern, unborn children and very young children are especially vulnerable to toxic chemicals.


HOW DID IT GET INTO THE FOOD?

HBCD  is primarily used in thermal  insulation in buildings, so how did it get into our peanut butter?

 Like most flame retardants, they probably made their way into the food chain (and into our bodies) via the air, water and soil.  They migrate out of the products that have the flame retardants (ie:  the thermal insulation) and into dust.  We either breath in  the dust or it  lands on -for example- peanut crops or on the food that livestock is grazing on. ..


WHAT BRANDS TO AVOID?
Unfortunately, the study did not specify which particular brands were tested, but all were "conventional" brands and not brands that market themselves as organic.  However, considering that the contamination could be coming from dust or water, the bad news is that organic options could potentially also be contaminated :-(  Not all the foods tested had traces of the chemicals, though.


SHOULD I BE CONCERNED?

A spokesperson for the North American Flame Retardant Alliance of the American Chemistry Council told WebMD that it should be noted that not all of the tested items had HBCD, and if it was found in the product, it contained levels much lower than levels reported to show negative health effects.

The study’s author recognizes that  HBCD  was, indeed, found in very small quantities.  However, they did add that “small quantities of HBCDs can add up to a much more significant chemical presence over time. Once in the human body, the same fat-loving disposition that attracted the chemical to fatty foods like meat and nuts can help it bind to human fat, where it can stick around for years.”   Also of concern?  Babies usually have higher fat levels than adults which makes them extra attractive for these chemicals.

Health concerns of HBCD exposure include alterations in immune and reproductive systems, neurotoxic effects, and endocrine disruption

While this study should not mean we have to cut peanut butter, among other foods, out of our diets, it does mean we should take any action possible to reduce our exposure to flame retardants. 

WHAT CAN I DO?

Unfortunately flame retardants like HBCD binds itself to dust and makes it way not only into our food but also into our homes.  In fact, tests have shown that the levels found in our homes are often higher than what is recorded in food sources. 

The good news is that there a couple of easy, (many free!) things you can do at home to to help reduce the amount of flame retardant contamination in your household dust:

  1. Dust and clean regularly.  Pay close attention to your children’s toys (especially if they like to place them in their mouth!)
  2. Invest in a vacuum with an HEPA filter and vacuum frequently (ok maybe not all are free!)
  3. Take your shoes off when coming indoors so as to avoid bring in contaminated soil or dust from outdoors.
  4. Wash you and your munchkin’s hands frequently (especially if you have babies that are crawling around the house.  Since contaminated dust settles on the floor, crawling babies are touching this dust all day and most definitely placing their hands in their mouth!)
  5. Open your windows daily, even if only for a short period, to allow the air indoors to circulate. 
  6. Look for products that do not contain flame retardants.  For more on this read our blog post "
    HOW TO REDUCE TRIS FLAME RETARDANT EXPOSURE AT HOME: Non-Toxic Munchkin's 123's"
  7. Urge your local Congressman or woman  to retire the 1976 Toxic Substances Control Act and replace it with the Safe Chemical Act which is currently awaiting approval at the Senate.  The Environmental Working Group has a great page which showcases easy things you can do to support this super important piece of legislature