Science

Having Trouble Keeping a Healthy Weight?

Here's why chemicals might be keeping you from shedding those last few pounds

If you're eating healthy, getting lots of sleep, but just can't seem to hit a healthy weight, it might be something you've never thought about. Obesogens, a term coined in 2006 to refer to chemicals that cause us to gain and hold on to weight, and can influence weight loss. Now, we know that maintaining a healthy weight and lifestyle is influenced by what seems like a bajillion factors, and is a complicated issue with no easy solution. But, it looks like obesogens are a piece of the puzzle and definitely something you want to be aware about. Data shows that obesity is an increasing problem. Over one-third of both adults and children in the U.S. are obese or overweight (1, 5). Even for people who regularly work out or have superhuman strength to say no to desserts, obesogens are having an impact. Unfortunately, as obesogen research is in its early stages, we still don't know everything about these chemicals and how they affect weight gain, but as of now, here's what we do know.


What are obesogens?

Obesogens are chemicals that promote fat development. Examples of obesogen chemicals include DDT, BPA and PFAS. We're exposed to a variety of these chemicals in our everyday lives (1). Now, to be clear, they probably don't cause obesity as directly as eating a cheeseburger night after night. Instead, they act by increasing the chances for excess weight gain, especially if exposed to these chemicals during critical periods of early development, like when the mom is pregnant or in the first few years of life.

What do they do?

Obesogens work in a variety of different ways. They can make it more difficult to maintain a healthy weight by increasing the number of fat cells in the body, or increasing the amount of fat stored by fat cells. They can also affect appetite and can worsen the effects of a high-fat or high-sugar diet. Obesogens can also change the way your body stores fat, making it more difficult to burn off excess fat (2, 4). There is evidence now that exposure to obesogens during developmental stages (think growing baby in the mom's belly, or as an infant) can have strong negative health impacts on a child. Research from the National Institute of Environmental Health Sciences shows that as of right now, there are between 15 and 20 chemicals that are strongly associated with weight gain later in life from exposure either during pregnancy or during infancy (2). According to scientists, this number is most likely the tip of the iceberg and surely we'll know more as research continues! This is why it's super important to try and reduce your child's exposure and your own exposure to obesogens if you're trying to get pregnant or are currently pregnant.

Which ones I should be concerned about?

There are a few obesogens that we know are strongly linked with weight gain, including air pollution, tobacco smoke, and DDT (1). DDT has been banned in the U.S. for quite a while now, but unfortunately, it is a chemical that does not break down easily and therefore exists predominantly in the soil, but can also travel over long distances in the air. The most common way people are exposed to DDT today is through the food they eat. Because DDT is often stored in fat, one of the best ways to avoid it is to choose fish and meat that are low in fat when you can (6).

In terms of limiting your exposure to air pollution and tobacco smoke, always check your neighborhood air quality (the weather app reports it). On bad days, try to stay inside and run an air filter if you have one! Be especially careful not to exercise outside during those days because when your breathing gets heavier, you end up inhaling more air and therefore more air pollution. And, if you're thinking about moving, try to scope out the air quality and traffic of potential neighborhoods before making a decision.

There is also good evidence that flame retardants and some pesticides are obesogens. Luckily, we've got plenty of tips for buying flame retardant free mattresses (and crib mattresses) and couches on the site to help you avoid flame retardants in future furniture purchases. Other things we are worried about include BPA (used in some water bottles) and PFAS (a.k.a. what makes pans non-stick). A big reason we hear about these is because of the fact that they mess up our body's natural processes. Some of those natural processes include responding to sugar and feeling full, which is why a lot of endocrine disruptors are also obesogens (3). In this case, you should try to reduce your use of plastics (here are some good alternatives) and avoid non-stick pans.

Even though it may seem like a damper that many of these chemicals are used in our everyday lives, think of it instead as killing two birds with one stone – by avoiding obesogens, you are also avoiding numerous endocrine disruptors and keeping yourself and your family healthy and safe!

What should I do?

Although it may seem daunting to try to decrease your exposure to chemicals that seemingly are everywhere in the environment, we're here to help you! Here's some more general advice to reduce obesogen exposure:

  1. Wash your hands (and your child's hands) frequently, and definitely before you eat. This will ensure that any chemicals on your hands are washed off before they can make it into your mouth.
  2. Eat fresh organic produce as often as you can. You can also look in the frozen aisle for affordable organic options.
  3. Opt for plastic-free storage containers more often, and definitely don't use plastics in the microwave.Check out why here.
  4. Choose products that are scented with essential oils instead of the ingredient "fragrance" when buying things that smell pretty (i.e. candles or perfume).

From the looks of it, obesogens are another factor to consider when trying to maintain a healthy lifestyle and healthy weight. It might be a frustrating factor, since a lot of it may seem out of your control, but by following our recommendations above, you can decrease your overall exposure to obesogens. P.S. it doesn't hurt that these recommendations can also help you jump start a healthy lifestyle!

References

  1. https://www.healthandenvironment.org/environmental-health/health-diseases-and-disabilities/obesity-research-and-resources
  2. https://www.niehs.nih.gov/health/topics/conditions/obesity/obesogens/index.cfm
  3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3279464/
  4. https://www.ncbi.nlm.nih.gov/pubmed/26829510
  5. http://www.heart.org/HEARTORG/HealthyLiving/HealthyKids/ChildhoodObesity/Overweight-in-Children_UCM_304054_Article.jsp#.W3MQbuhKjyQ
  6. https://toxicfreefuture.org/science/chemicals-of-concern/pcbs-and-ddt/#aboutddt
Roundups

Non-Toxic Aftershaves

Cause who wants questionable chemicals on a freshly shaven face?

Whether aftershave is part of your shaving routine for the manly (and fabulous!) scents or to help your skin recover, you probably don't want an aftershave with questionable ingredients or preservatives. This is especially true because the main purpose of aftershave is to calm down any skin irritation and disinfect any small nicks (oops!) you accidentally gave yourself. We also included two options for witch hazel toners that are an all natural, affordable option that calms inflammation and disinfects. We found 7 non-toxic aftershaves and witch hazel toners that have good ingredients, good reviews, and are easy to buy at major retailers. So pick up one up and incorporate it into your morning routine and your skin will thank you!

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Family

5 Easy Changes to Protect Your Sperm from Harmful Chemicals

Keep your swimmers safe with these science-based tips

Hey, guys, yeah all you sperm producing humans out there. Hate to break it to you, but when it comes to different chemicals in our world, your little swimmers might not be as safe as you think. While it's true that you continually are creating new sperm, if you are exposed to some of these nasty things on a regular basis, chances are high that they are affecting both the quality and quantity of your sperm. Even if you aren't planning to have a kid right now, these things could make it harder for you to conceive a kid in the future and research has linked sperm health to overall health. But, hang tight. We have some super simple suggestions for ways to change up your routine that can protect your sperm for years to come.

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Home

What to Know Before Your Next Big DIY Project

Protect your health without sacrificing creativity!

Whether you're inspired by a recent Etsy binge or are a Weekend Warrior who practically lives at Home Depot, DIY projects can be super fun and fulfilling. Before you get started on your next project, we have some tips on what chemicals to avoid, the safety hazards they pose, and ways to keep yourself safe.




Avoid Methylene chloride

It's always fun to spruce up furniture with a new coat of paint but methylene chloride, a seriously dangerous chemical, is found in paint stripping products. In the body methylene chloride turns into carbon monoxide (1), and too much carbon monoxide can cause dizziness, confusion, and asphyxia. Methylene chloride fumes quickly accumulate and are heavier than air, which means workers bending down over projects in poorly ventilated areas are easily susceptible to the dangers of this chemical (2). There have been many accidental deaths from Methylene chloride, so you should completely avoid paint strippers that use it. Safer Chemicals, Healthy Families has created a great reference on safer alternative for paint strippers.

Paint

Before you pick up your paint brush to tackle that dresser revamp, make sure the paint you're using is low VOCs. VOCs, or volatile organic compounds, are chemicals that are emitted as gasses from products like paint and can cause headaches, eye irritation, and nausea (3). VOCs are part of the reason paint can be so smelly when it's drying! Look for a paint that says low or no VOCs on the packaging and make sure to keep the windows open while the paint is drying!

Wood Stains

Updating your wood table or decking? Reach for a water-based wood stain or finish! Traditional wood stains can contain harsh chemicals and emit a ton of VOCs. Luckily a lot of brands have a VOC rating on their label, which makes choosing a product a lot easier. We recommend choosing a stain with low VOCs (under 250 g/l) that is also Green Seal 11 (GS-11) certified (4).

Always Have Proper Ventilation

This is key for any DIY project. Chances are, you'll probably use some chemicals that are not great for you during your project. The best place to work on your project is outside but if you have to work indoor, make sure to open windows and doors, and use a fan to ventilate the area.

Wear a Protective Mask

DIY projects can expose you to a TON of dust, which is why it's a good idea to always wear a protective mask. Dust is bad for you in general, and can also contain particles containing toxic chemicals, which is why we recommend using an N95 mask while working. Normal masks can help protect you, but they don't protect you from all dust. N95 masks filter even the tiniest particles (0.3 microns) (5), which can keep you safe during those extremely messy projects.




  1. https://saferchemicals.org/get-the-facts/chemicals-of-concern/methylene-chloride/
  2. https://prheucsf.blog/2017/11/14/risky-paint-stripper-will-continue-to-kill-while-epa-delays/
  3. https://www.epa.gov/indoor-air-quality-iaq/volatile-organic-compounds-impact-indoor-air-quality#Levels
  4. https://www.ewg.org/healthyhomeguide/wood-stains-a...
  5. https://www.fda.gov/medical-devices/personal-protective-equipment-infection-control/masks-and-n95-respirators

Now that you've invested in some glass and stainless steel food storage containers, maybe you're wondering if you should Marie Kondo all the plastic ones you used to use? Instead adding them to the landfill, what if we told you that all those plastic containers can help you achieve a new level of organization zen? While we don't recommend storing food in them anymore (for those of you who haven't heard: these plastic food storage containers often have BPA or phthalates in them, which can leach into your food over time and cause all sorts of health problems), we also don't think you have to throw them away.

So, what can you do? We have 6 great suggestions for you to repurpose those containers throughout your home.



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Roundups

6 Non-Toxic and Plastic-Free Shampoos

We found 5 shampoo bars and 1 refillable option

We've had a lot of asks for products with sustainable packaging. We heard you! Sustainable, non-toxic, well-reviewed products are actually harder to find than you think. Who knew? But we did a ton of research and found some great options! We searched high and wide and found these 5 non-toxic shampoo bars and one refillable shampoo that comes in an aluminum bottle. These shampoo products are a great way to reduce your plastic consumption without compromising on safe ingredients. A win-win in our book for the planet and your health!

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Life

Banish Bugs With Our Recommended Insect Repellent Ingredients

Don't be an all-you-can-eat-buffet for annoying critters again!

Summer is here! But that means so are the biting insects…. Ugh. Mosquitoes, ticks, chiggers, fleas, and biting flies seem impossible to avoid when the weather heats up. They're really annoying and they can post a pretty big health risk. Mosquitoes and ticks alone can transmit some scary diseases like Zika, Lyme, malaria, encephalitis, and dengue fever. And to make matters worse, a new CDC report shows the number of mosquito and tick-borne diseases are on the rise (1). To help protect yourself against these pesky insects, we're discussing the most effective insect repellent ingredients that are EPA registered (AKA safe and effective) and CDC recommended: DEET, picardian, and oil of lemon eucalyptus.

We know what you're thinking- synthetic chemicals are recommended?! In this case, the risk of disease is a bigger environmental health threat than using these two specific synthetic chemicals. Additionally, there have also been no scientific studies that show essential oils are effective in protecting against insect bites so we can't include them in our recommendations. You can try them and maybe they'll work for you, but there's no guarantee. If you really want our one DEET alternative, non-synthetic repellent recommendation, that has a transparent list of ingredients, and is scientifically proven to keep bugs away, stay tuned!

DEET

DEET (N,N-diethyl-meta-toluamide) is considered to be the "gold standard" of insect repellent. It's a good choice if you're outside all day in a high-insect are because it repels the most insects, including both mosquitoes and ticks, and lasts the longest amount of time (2). When applied correctly (make sure to read the label!), there are very few negative reactions from DEET. A product with a concentration of DEET between 20-30% can provide protection from insects for most of the day (3). DEET can be used while pregnant and on children older than two months and has not been found to be carcinogenic. Although some may see dermatitis or an allergic reaction from long-term exposure to high levels of DEET (2) and oral ingestion has been shown to have neurotoxic effects like seizures (4).

Picaridin

Picaridin (icardian) is another repellent ingredient that repels ticks and mosquitoes. It's been widely used in Europe and Australia for years with positive results. A product containing at least 20% picaridin has similar short-term results as DEET, although picaridin does not provide long-lasting protection as well as DEET and has to be reapplied more often (2). Picaridin has not been studied as thoroughly as DEET, but it does not seem to have any major negative health impacts. Although uncommon it can cause skin or eye irritation, so make sure to read the directions when using a product containing picaridin (5).

Oil of Lemon Eucalyptus

Oil of lemon eucalyptus (P-menthane-3,8-diol) is a natural oil extracted from the lemon-scented eucalyptus plant (6). It can be an appealing ingredient to people because it's an alternative to synthetic chemicals like DEET or picaridin. Oil of lemon eucalyptus is great at repelling mosquitoes, flies and gnats, but not so great against ticks (2). Products containing at least 30% of oil of lemon eucalyptus have shown to be almost as effective as repelling mosquitoes as DEET, but it has to be applied much more frequently (6). While it is natural, it can irritate the eyes or skin and is not recommended for children under 3 (7). Just a quick note: lemon essential oil and eucalyptus essential oil are NOT the same thing as oil of lemon eucalyptus though, so make sure to look for that exact phrasing in any ingredient lists.

Since oil of lemon eucalyptus is EPA registered and a natural ingredient, we think it's a great synthetic-ingredient alternative! We love Murphy's Naturals Lemon Eucalyptus Oil Insect Repellent Spray. It uses 30% oil of lemon eucalyptus as a way to repel those annoying bugs and lists all of the ingredients (ethanol and water). It's super super hard to find a complete list of ingredients in insect repellent products, so we think this is a huge plus.

So which ingredient should I choose?

It depends! Are you in an area with a high amount of mosquitoes and ticks? Are you outdoors for the entire day or maybe just an hour? Do you want to avoid synthetic chemicals or are you okay with it? Are you traveling to a place that has a high rate of diseases like malaria or yellow fever? The EPA has a quiz you can take in order to find the best insect repellent for your needs.

We recommend to always read and completely follow the directions listed on any repellent product you use, and wash your hands after applying a repellent. Generally you want to apply repellent when you're outside while holding the product at least 6 inches away as you spray. While spraying repellent on your clothes is okay (although DEET shouldn't be sprayed on synthetic fabric), it's not a good idea to spray it under your clothes (8). Long sleeved shirts, pants, long socks, and closed toe shoes can reduce the risk of a bite because less skin is exposed.

Now that you're fully up-to-date on the best insect repellent ingredients you can go back to focusing on what really matters: barbecuing, swimming, beach trips, and all of fun activities that come with summer!


References:

1. https://www.cdc.gov/mmwr/volumes/67/wr/mm6717e1.htm?s_cid=mm6717e1

2. https://www.uptodate.com/contents/prevention-of-arthropod-and-insect-bites-repellents-and-other-measures

3. https://www.ewg.org/research/ewgs-guide-bug-repellents/ewg-repellent-guide

4. https://www.ncbi.nlm.nih.gov/pubmed?term=2506420

5. http://npic.orst.edu/factsheets/PicaridinGen.html

6. https://www.beyondpesticides.org/assets/media/documents/pesticides/factsheets/oillemoneucalyptus.pdf

7. https://www.cdc.gov/zika/prevention/prevent-mosquito-bites.html

8. https://wwwnc.cdc.gov/travel/yellowbook/2018/the-pre-travel-consultation/protection-against-mosquitoes-ticks-other-arthropods

Life

Why Summer-Time Pests Can be Dangerous for Your Health and How to Avoid Them

The worst thing these little guys do is not just make us itchy

Nearly everyone has been bitten by a tick, mosquito, or flea, and can agree these pests are a damper on otherwise fun-filled summer activities. What most don't know is that these pests are vectors: carriers of many harmful diseases. These diseases are on the rise in the US, and are expected to become an even larger problem as climate change intensifies. Keep yourself and family informed and safe this summer with the following information on vector-borne diseases and how to avoid annoying and dangerous bug bites.

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