Coconut oil has long been considered a health staple, frequently recommended for its stable saturated fat content, high smoke point, and ability to support brain function and metabolic health. Whether used for cooking, baking, or even skincare, coconut oil has been a trusted alternative to seed oils for those looking to make cleaner choices. But recent testing has revealed a significant concern—phthalates, a group of hormone-disrupting chemicals, have been found in multiple coconut oil brands, raising serious questions about contamination and consumer safety.

A study conducted by Mamavation tested seven different brands of coconut oil and found that all of them contained some level of phthalates, with contamination levels as high as 1,300 ppb. Phthalates are well-known endocrine disruptors linked to reproductive health issues, metabolic disorders, and long-term toxicity buildup in the body. If coconut oil is a kitchen staple for you, it’s time to take a closer look at what’s actually in the jar.^[1]

What Are Phthalates and Why Are They Dangerous

Phthalates are a class of industrial chemicals used to soften plastics and increase flexibility in consumer products. They are found in plastic packaging, personal care products, food storage containers, and even medical devices. Phthalates are fat-soluble, meaning they are particularly prone to leaching into oils, dairy, and other high-fat products.^[2]

Because phthalates are not chemically bound to plastics, they continuously migrate from packaging and equipment into food, water, and even the air. Studies have linked phthalate exposure to:

• Disruption of hormone production, particularly lowering testosterone levels in men
• Increased infertility in women due to impaired ovarian function
• Higher risks of obesity, insulin resistance, and metabolic syndrome
• Thyroid dysfunction leads to energy imbalances and difficulty maintaining a healthy weight
• Developmental issues in infants and young children exposed in utero

Phthalates accumulate in the body over time, meaning repeated exposure—especially from commonly used food products—can have lasting effects on overall health. Since coconut oil is often used daily, phthalate contamination presents a significant risk that cannot be ignored.

How Do Phthalates Contaminate Coconut Oil

Coconut oil does not naturally contain phthalates. Instead, contamination occurs during manufacturing, processing, packaging, and storage. The primary sources of phthalate contamination in coconut oil include:

• Processing Equipment – Many food production facilities use plastic-lined machinery and plastic tubing, particularly in high-heat extraction processes. Phthalates from these materials leach into the oil during processing.
• Storage Containers – Before packaging, coconut oil is often stored in large plastic drums. Extended contact with plastic, especially when exposed to heat, increases the risk of chemical migration.
• Plastic Packaging – Many brands sell coconut oil in plastic jars or bottles, which continue to expose the oil to phthalates over time. Heat, light exposure, and long storage periods all contribute to higher contamination levels.
• Transportation and Warehousing – During shipping, coconut oil is frequently stored in plastic containers that may be exposed to fluctuating temperatures, further increasing chemical leaching.

Even organic coconut oil is not exempt from this issue. Since phthalate contamination occurs during processing and storage rather than from pesticides or farming methods, both conventional and organic brands are susceptible to this type of pollution.

Which Coconut Oil Brands Are the Most and Least Contaminated

Mamavation’s independent testing ranked brands based on their levels of phthalate contamination. The study found that some brands had significantly higher contamination levels than others, suggesting that processing methods play a critical role in exposure.

Among the tested brands, Dr. Bronner’s coconut oil had the lowest phthalate contamination levels, making it one of the safest options currently available. Meanwhile, other brands tested significantly higher, with some reaching levels of 1,300 ppb.

While the full list of tested brands has not been widely published, the results indicate that not all coconut oils are created equal. Choosing a brand that prioritizes clean processing and safe packaging is essential for reducing exposure to these hidden toxins.

How to Choose a Phthalate-Free Coconut Oil

To minimize phthalate exposure, here are some steps to take when purchasing coconut oil:

• Choose organic, cold-pressed coconut oil – Cold-pressed extraction methods reduce heat exposure during processing, lowering the risk of chemical contamination from plastic-lined machinery.
• Opt for glass packaging over plastic – Coconut oil stored in glass does not absorb chemicals the way plastic-packaged oil does. Choosing glass ensures a cleaner product with no risk of plastic leaching.
• Research brand transparency – Some companies conduct third-party testing and disclose their processing methods to ensure their product is free from contaminants. Looking for brands that prioritize transparency can help you make safer choices.
• Store coconut oil properly – Even if you purchase coconut oil in plastic, transferring it to a glass container and storing it in a cool, dark place can help minimize continued exposure to phthalates.

Is Coconut Oil Still a Healthy Option

Despite concerns about contamination, coconut oil remains one of the most stable and beneficial fats available when sourced properly. It is rich in medium-chain triglycerides (MCTs), which support brain function, metabolic health, and energy production. It is also one of the best oils for high-heat cooking, as it does not oxidize easily like seed oils do.

However, the presence of phthalates in many coconut oil brands means that consumers need to be diligent about selecting safer options. Simply assuming that all coconut oils are equally healthy is no longer enough. Prioritizing glass-packaged, cold-pressed coconut oil from brands with a commitment to purity ensures that you can continue to reap the health benefits without the added toxic burden.

Final Thoughts

Coconut oil has long been praised for its health benefits, but recent testing has exposed an unexpected problem—phthalate contamination. These endocrine-disrupting chemicals have been detected in every brand tested, with some showing alarmingly high levels. Since phthalates interfere with hormone function, reproductive health, and metabolic processes, avoiding exposure is essential for long-term well-being.

The good news is that there are ways to continue using coconut oil while minimizing toxic exposure. Choosing cold-pressed, glass-packaged coconut oil from brands that prioritize clean processing can significantly reduce your risk. Dr. Bronner’s has been identified as one of the safest options, while other brands vary widely in contamination levels.

Being mindful of the hidden toxins in everyday products is a crucial part of maintaining optimal health. Small steps—such as switching to a cleaner coconut oil—can significantly lower toxic load and protect your body from unnecessary chemical exposure. The next time you reach for a jar of coconut oil, look at how it was processed and packaged. Your health is worth making the extra effort to choose the safest option available.

References:

1. Segedie, Leah. “Coconut Oils Tested for Toxic Phthalates — Buying Guide.” MAMAVATION, 11 June 2024, https://www.mamavation.com/food/coconut-oils-tested-for-toxic-phthalates.html.
2. Wang, Yufei, and Haifeng Qian. “Phthalates and Their Impacts on Human Health.” Healthcare, vol. 9, no. 5, May 2021, p. 603.