Plastics: The Insidious Hormone Disruptor Hiding in Plain Sight
Wonder why you are gaining weight and feeling “hormonal?” It could be plastics!
Plastics are hormone disruptors. The chemicals in them, including BPA and phthalates, mimic or block your hormones, and some are obesogens that tell your body to store fat. They are in your water bottle, your takeout container, your shampoo, and now even your bloodstream. The good news: you can lower your exposure and help your body clear what is already there.
It is Plastics Month, so let us talk about the disruptor most people never think about. You cannot see it, you cannot taste it, and it is almost certainly in your kitchen right now.
How Plastics Mess with Your Hormones
Plastic is not one chemical. It is a cocktail of them. To make plastic soft, clear, flexible, or flame-resistant, manufacturers add a long list of additives, and many of those additives are endocrine-disrupting chemicals (EDCs).
An EDC is a chemical that interferes with your hormone system. It can imitate a hormone, block a hormone, or scramble the signal. More than 1,000 chemicals in use today are suspected EDCs, and plastics are a leading source.
The usual suspects that leach out of plastic:
- BPA (bisphenol A): mimics estrogen. Found in hard plastics, can linings, and receipts.
- Phthalates: lower testosterone and disrupt thyroid. Found in soft, flexible plastics and fragrance.
- Flame retardants, PFAS, and heavy metals: linked to thyroid and metabolic disruption.
This is the same mechanism behind the everyday exposures I wrote about in the hidden dangers in your vanity. The lotion, the fragrance, the plastic packaging. Small doses, every single day, for years.
Obesogens: The Chemicals That Make You Store Fat
Here is the part that makes women in midlife furious, and rightly so. Some of these chemicals are obesogens. An obesogen is a chemical that changes how your body makes and stores fat.
They can increase the number of fat cells, enlarge the ones you have, and shift your appetite and metabolism toward weight gain. BPA, certain phthalates, and tributyltin are all documented obesogens. In animal studies, some even program weight gain across multiple generations.
When you are eating well, moving your body, and the scale will not budge, you are not imagining it and you are not failing. Part of the problem may be sitting in your pantry in a plastic container. Part of the problem may be sitting in your pantry…wrapped in plastic.
It’s hard enough to lose weight without your leftovers secretly coaching your fat cells to hang on for dear life. Your fat cells apparently didn’t get the memo that you’re trying to fit into your favorite jeans ☺
Plastics are not the only chemical messing with your weight and energy. For the bigger picture, see the top 3 hormone disruptors that cause weight gain, brain fog, and fatigue.
Microplastics Are Everywhere, Including You
Plastics do not break down. They break up. Into microplastics and nanoplastics small enough to travel through your body. We are well past the point of this being someone else’s problem.
Researchers have now found microplastics in human blood, in the placenta of healthy pregnancies, and in the brain. One 2025 study reported that human brain tissue held measurably more plastic than the liver or kidney, and that the amount has been climbing over time. Plastic exposure starts even before birth due to “plasticenta” plastic particles found in the placenta.
Read that again. Plastic. In the brain. (If you needed a reason to stop microwaving leftovers in plastic, that is the reason.) Your brain on plastics may not just be menopause or perimenopause brain fog. The next time you walk into a room and can’t remember why, don’t be too quick to blame your hormones. Your leftovers may have wanted to come with you!
How Plastic Exposure Shows Up in Your Body
You will not feel a phthalate molecule. You feel the downstream effects, and they look a lot like the symptoms my clients walk in with:
- Stubborn weight gain, especially around the belly
- Fatigue that sleep does not fix
- Brain fog and low mood
- Worsening PMS, perimenopause, or menopause symptoms
- Thyroid that feels sluggish even when labs look borderline normal
Over 90% of Americans have measurable BPA in their urine. This is not a fringe exposure. It is the water we all swim in. The question is not whether you are exposed. It is how much, and what you do about it.
8 Ways to Lower Your Plastic Load
You cannot live in a bubble, and you do not need to. You just need to cut the largest, most repeated exposures. Start here.
- Never heat food in plastic. Heat makes chemicals leach faster. Microwave and store food in glass or stainless steel.
- Ditch plastic water bottles. Use glass or stainless steel and a good filter at home.
- Skip the receipt. Thermal paper receipts are coated in BPA. Say no thanks or wash your hands after.
- Choose fragrance-free. Fragrance often hides phthalates. This applies to lotion, candles, and cleaning products.
- Filter your tap water. A quality filter reduces plastic particles and other contaminants.
- Eat fresh over packaged. Less plastic packaging means less leaching into your food.
- Vacuum and dust often. Household dust is a real source of flame retardants and phthalates.
- Support your detox pathways. Your liver, gut, and kidneys clear these chemicals daily. Give them what they need: fiber, cruciferous vegetables, plenty of water, sweat, and daily bowel movements.
Why Detox Matters (and a Story)
Lowering exposure stops adding to the pile. Supporting your body’s natural detoxification helps clear what is already stored. Both matter, because these chemicals are fat-soluble and they accumulate.
This is exactly what a structured detox is built to do: pull the inflammatory, hormone-disrupting inputs, then give your liver and gut the support to clear them. The result is often more than people expect.
Take Felicia. She did the 28-day detox and put it plainly: “I found the 28 Day Detox nothing short of life changing. I had immediate relief from acid reflux (I was a 5-Tums-a-day gal), bloating, and all nasal and allergy symptoms. I also began to lose weight and now have more energy than I have had in a long time.”
Less bloat, less reflux, fewer allergy symptoms, weight loss, more energy. That is what happens when you stop pouring in the inputs and help the body do its job.
Results vary. Individual outcomes depend on health history, adherence, and other factors.
Your Next Step: Restore and Rejuvenate
If you are ready to lower your toxic load and feel the difference, my Restore and Rejuvenate detox walks you through it step by step. It is designed to help your body clear hormone-disrupting chemicals and reset your energy, weight, and clarity. Your body is not broken. It just needs the right support to do what it already knows how to do.
Frequently Asked Questions
How do plastics disrupt hormones?
Plastics contain chemicals like BPA and phthalates that act as endocrine disruptors. They mimic estrogen, block testosterone, and interfere with thyroid signaling, which can affect weight, mood, energy, and reproductive health.
What are obesogens?
Obesogens are chemicals that change how your body makes and stores fat. BPA, some phthalates, and tributyltin are documented obesogens that can increase fat cells and shift metabolism toward weight gain.
Are microplastics really in the human body?
Yes. Studies have detected microplastics in human blood, placenta, and brain tissue, and brain concentrations appear to be rising over time.
How can I reduce my exposure to plastic chemicals?
Stop heating food in plastic, switch to glass or stainless steel, filter your water, choose fragrance-free products, eat fresh over packaged foods, and support your liver and gut so your body can clear what it absorbs.
References
- Diamanti-Kandarakis E, Bourguignon JP, Giudice LC, et al. Endocrine-disrupting chemicals: an Endocrine Society scientific statement. Endocr Rev. 2009;30(4):293-342. https://doi.org/10.1210/er.2009-0002
- Endocrine Society, IPEN. Plastics, EDCs & Health: A Guide for Public Interest Organizations and Policymakers. Washington, DC: Endocrine Society; 2020. https://www.endocrine.org/topics/edc/plastics-edcs-and-health
- Calafat AM, Ye X, Wong LY, Reidy JA, Needham LL. Exposure of the U.S. population to bisphenol A and 4-tertiary-octylphenol: 2003-2004. Environ Health Perspect. 2008;116(1):39-44. https://doi.org/10.1289/ehp.10753
- Heindel JJ, Blumberg B. Environmental obesogens: mechanisms and controversies. Annu Rev Pharmacol Toxicol. 2019;59:89-106. https://doi.org/10.1146/annurev-pharmtox-010818-021304
- Ragusa A, Svelato A, Santacroce C, et al. Plasticenta: first evidence of microplastics in human placenta. Environ Int. 2021;146:106274. https://doi.org/10.1016/j.envint.2020.106274
- Nihart AJ, Garcia MA, El Hayek E, et al. Bioaccumulation of microplastics in decedent human brains. Nat Med. 2025;31(4):1114-1119. https://doi.org/10.1038/s41591-024-03453-1
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Functional Medicine Wellness | Hormone Specialist | Hormone Replacement Therapy and Weight Loss | Anti Aging Specialist
She is a recognized and award-winning holistic, functional, integrative and anti-aging healthcare practitioner, speaker and author, and has been featured in ABC News, Forbes, WOR Radio and many media outlets to spread the word that you can live younger and healthier at any age.