By George Citroner
- Exposure to phthalates was associated with autism traits in boys (but not girls) between ages 3 and 4 years, according to a new study.
- However, the risk was diminished in women who took folic acid during their pregnancy.
- This study is the first to find that folic acid supplements provide a protective effect from phthalates.
Exposure in the womb to a group of endocrine-disrupting chemicals called phthalates was associated with autism traits in boys (but not girls) between ages 3 and 4 years, according to a new study.
Mothers Recruited From the MIREC Study<p>Oulhote and team enrolled 2,001 Canadian women with an average age of 33 who were in their first trimester of pregnancy between 2008 and 2011. Less than 10 percent of the women reported regularly drinking or smoking during pregnancy.</p><p>All the participants were recruited from the <a href="https://www.mirec-canada.ca/en/" target="_blank">Maternal-Infant Research on Environmental Chemicals (MIREC)</a>, a longitudinal pregnancy cohort study conducted in Canada.</p><p>Researchers collected information from questionnaires, medical charts, and maternal blood and urine specimens during pregnancy and at delivery.</p><p>Concentrations of 11 <a href="https://www.nature.com/articles/pr2017112/tables/1" target="_blank">phthalate monoester</a> metabolites were measured in first trimester urine samples at the Toxicology Centre of the Quebec Institute of Public Health.</p><p>"We had several limitations, the most important one being that these phthalates exposures may vary in time, and therefore future studies should consider this and try to measure these phthalates at multiple time points in pregnancy," Oulhote said.</p>
Greater Phthalate Exposure Associated With Autism Traits<p>Researchers performed neuropsychological assessments on 610 of the children born when they were between 3 and 4 years of age.</p><p>This included the <a href="https://journals.sagepub.com/doi/pdf/10.1177/0734282913517525" target="_blank">Social Responsiveness Scale-2 (SRS-2)</a>, a measure of autism traits and social impairment. A higher score means more autism traits are present.</p><p>"We looked at autistic traits, not an autism diagnosis, which would have required a very large sample size or a different study design given the rarity of ASD. However, looking at autistic traits provides a very good idea about how these traits occur at a population level," Oulhote explained.</p><p>Researchers found that greater concentrations of phthalate chemicals in a mother's urine samples were associated with increases in SRS scores, but only in children whose mothers didn't take a recommended daily folic acid dose (400 micrograms) during their first trimester.</p>
Folic Acid Is Key<p>This study is the first to find that folic acid supplements provide a protective effect from phthalates. Oulhote also believes that folic acid supplements might block the effects of other toxic chemicals.</p><p>"The most surprising and important finding was how adequate important folic acid supplementation was in offsetting the potential effects of phthalates on autistic traits," Oulhote said.</p><p><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5915192/" target="_blank">Previous studies</a> have shown folic acid is associated with reduced chance of autism spectrum disorder that's caused by prenatal exposure to pesticides and air pollutants.</p>
Phthalates Affect Health in Many Ways<p>Phthalates are a group of chemicals used to make <a href="https://www.ecowatch.com/tag/plastics" rel="noopener noreferrer">plastics</a> more flexible and harder to break, often called plasticizers.</p><p>They're also used as dissolving agents for other materials, according to the <a href="https://www.cdc.gov/biomonitoring/Phthalates_FactSheet.html" target="_blank">Centers for Disease Control and Prevention</a>.</p><p>Phthalates can even act like <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5391940/" target="_blank">hormones</a> and increase the <a href="https://www.ncbi.nlm.nih.gov/pubmed/28686951" target="_blank">risk</a> of cardiovascular diseases and diabetes.</p><p><a href="https://www.sciencedirect.com/science/article/abs/pii/S0013935119300507?via%3Dihub" target="_blank">Previous research</a> has shown that children whose mothers are exposed to phthalates during pregnancy were more likely to have motor skill issues, and <a href="https://www.cnn.com/2018/10/29/health/phthalate-prenatal-language-development-study/index.html" target="_blank">another</a> found that these children exposed during pregnancy had problems with language development.</p>
Phthalates Are Almost Everywhere<p>These chemicals are in <a href="https://www.ncbi.nlm.nih.gov/pubmed/21315328" target="_blank">hundreds</a> of products, including vinyl flooring, adhesives, detergents, lubricating oils, automotive plastics, raincoats, and personal care products, like:</p><ul><li>soaps</li><li>shampoos</li><li>hairs sprays</li><li>nail polish</li></ul><p>Phthalates are also an ingredient in polyvinyl chloride (PVC) plastics, which are used to make plastic packaging film and sheets, garden hoses, blood storage containers, medical tubing, and some children's toys.</p>
Avoiding Exposure<p>Phthalates are almost impossible to avoid in our modern environment, but there are ways to minimize your exposure.</p><p>While the <a href="https://www.fda.gov/cosmetics/cosmetic-ingredients/fragrances-cosmetics" target="_blank">Food and Drug Administration</a> mandates that phthalates be listed in the ingredients of personal care products, they don't have to be if they're added as part of the fragrance.</p><p>Although companies will label their products "phthalate free," it may be best to call them up and make sure.</p><p>New mothers can take simple measures to keep baby safe.</p><p>"Once the baby is born, continue to be mindful about chemicals that can cause harm. Look for fragrance-free products that are as all-natural as possible. Keep up with DIY, including for cleaning products, and limit plastics in the house, especially baby bottles and toys," wrote <a href="https://www.health.harvard.edu/blog/author/cmcarthy" target="_blank">Claire McCarthy</a>, MD, a faculty editor for Harvard Health Publishing, in the <a href="https://www.health.harvard.edu/blog/something-else-to-avoid-in-pregnancy-phthalates-2019031516224" target="_blank">Harvard Health Blog</a>.</p>
The Bottom Line<p>New research finds pregnant women exposed to phthalate chemicals during pregnancy can give birth to boys who show traits of autism.</p><p>However, the children of those mothers who took the recommended amount of folic acid showed far less traits.</p><p>This is the first study to find that folic acid supplements can protect unborn children from effects of phthalates.</p><p>Phthalates are everywhere in our environment, but there are ways to reduce your exposure, including avoiding canned foods, certain plastics, and personal products that contain this class of chemical.</p><p><span></span><em>Reposted with permission from </em><a href="https://www.healthline.com/" target="_blank"><em>Healthline</em></a><em>. For detailed source information, please view the original article on </em><em><a href="https://www.healthline.com/health-news/prenatal-phthalate-exposure-linked-to-autism-risk" target="_blank">Healthline</a></em><em>.</em></p>
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EcoWatch Daily Newsletter
By Tom Hucker
The holiday shopping season is upon us, and Americans are expected to spend a whopping $1.1 trillion in holiday purchases this year.
Across the nation, discerning shoppers will seek out information to help them choose safe and healthy products for their families and friends. They will read warning labels to help them decide which toys might pose choking hazards, and which video games and movies are age-appropriate.
A pediatricians' group representing 67,000 U.S. doctors published a statement and report Monday warning about the impact common chemicals in food and food packaging are having on children's health, The Globe and Mail reported.
The American Academy of Pediatrics policy statement expressed concern over a growing body of research linking chemicals commonly added to food as coloring or flavorings or used in food packaging with health risks like hormone disruption. The doctors further argued that U.S. food regulation policy does not do enough to protect against these chemicals.
By Brian Bienkowski
Don't feel like cooking tonight? A new study may change your mind.
In a study of more than 10,000 people in the U.S., researchers found that people who frequently eat out at restaurants, cafeterias and fast food joints have phthalate levels about 35 percent higher than people who mostly eat food bought at a grocery store and prepared at home.
By Stacy Malkan
"I want grandkids one day, so sperm is important to me because I've got three young boys," said mom, author and social media genius Leah Segedie in a video introducing her "Save the Swimmers" campaign.
"This is where my youngest rolls his eyes at me and says, 'I know Mom. Avoiding plastics can help save my swimmers, oooh kay.' But to me this is no laughing matter. Over 25 years of studies have demonstrated that these little sperm are crying out for help."
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By Caroline Cox
What keeps you up at night? Sick kids, restless pets, the latest tragedy on the evening news, politics, wars, earthquakes, hurricanes, fires, money troubles, job stress, and family health and wellbeing? There is no shortage of concerns that make us all toss and turn.
By Molly M. Ginty
You shun Styrofoam tableware, buy organic oranges and even get your kids to eat leafy greens. But are you doing all you can to protect your children from toxic chemicals that may lurk inside their favorite foods?
Phthalates are a particularly harmful type of chemical, used, among a range of other ways, to soften plastic in children's toys and products like pacifiers and teething rings. In response to mounting concern about the serious health impacts of phthalates—most notably, interference with hormone production and reproductive development in young children—Congress voted overwhelmingly in 2008 to outlaw the use of a few phthalates in these products and ordered the Consumer Product Safety Commission (CPSC) to assess the use of other types of the chemical in these products. After much delay, the CPSC voted 3–2 Wednesday to ban five additional types of phthalates in kids' toys and childcare products.
A reporter asked:
I was wondering if you could share your thoughts with me about the new study finding phthalates in boxed Mac & Cheese. Should consumers be afraid of just Mac & Cheese, considering phthalates are ubiquitous and found in almost every food we consume? What are your recommendations?
Laboratory testing of 10 varieties of macaroni and cheese products has revealed toxic industrial chemicals (known as phthalates) in the cheese powders of all of the tested items, according to the Coalition for Safer Food Processing & Packaging, a national alliance of leading public health and food safety groups.
In recognition of National Macaroni and Cheese Day, the coalition has issued a call to The Kraft Heinz Company—the dominant seller of boxed macaroni and cheese, with 76 percent of market share—to drive industry-wide change by eliminating any sources of phthalates (THAL-eights) that may end up in its cheese products. Detailed information and a public petition are available at http://www.KleanUpKraft.org.