Phthalates, chemicals used to make plastics flexible and durable, have been linked to a significant increase in heart disease risk and death. A study published in eBioMedicine found that in 2018 alone, an estimated 356,238 deaths globally could be attributed to exposure to di-2-ethylhexylphthalate (DEHP), a specific phthalate commonly found in food containers, cling wrap, and food processing materials. That number represented around 13.5% of all cardiovascular-related deaths of people between the ages of 55 and 64 that year .

How Do Phthalates Damage Your Heart?

Phthalates are environmental endocrine-disrupting chemicals, meaning they interfere with your body's hormone function. This interference can trigger inflammation throughout your body, which damages blood vessels and increases your risk for heart disease. Researchers estimate that DEHP exposure collectively shortened life by roughly 10.4 million years worldwide .

"Phthalates may infiltrate the arteries of humans and contribute to heart disease," explained Sanjay Rajagopalan, M.D., director of Case Western Reserve University's Cardiovascular Research Institute.

Sanjay Rajagopalan, M.D., Director of Cardiovascular Research Institute at Case Western Reserve University

The risk is not evenly distributed globally. Regions with booming plastic industries saw the most dramatic impact. South Asia and the Middle East experienced the highest percentage of cardiovascular-related deaths attributable to DEHP exposure at nearly 17%, while East Asia and the Pacific together hosted around 73% of global DEHP-attributed deaths .

Beyond inflammation, phthalates have been linked to high blood pressure, high cholesterol, and cardiovascular arrhythmias, a condition where your heart beats irregularly. These chemicals can also raise your risk for obesity and diabetes, both of which are additional risk factors for heart disease .

Where Are Phthalates Found in Your Home?

Phthalates are ubiquitous in modern households. DEHP is used in food containers, medical equipment, vinyl flooring, shower curtains, children's toys, and food processing and storage materials like cling wrap. The problem is particularly acute when these plastics come into contact with food, especially fatty or acidic foods that can cause phthalates to leach out of the plastic and into what you eat .

How to Reduce Your Exposure to Phthalates

While you cannot completely eliminate phthalates from your environment, experts recommend taking deliberate steps to minimize your exposure:

• Switch to glass, stainless steel, or silicone: Replace plastic food storage containers with glass, stainless steel, or silicone alternatives for storing and reheating food.
• Avoid microwaving in plastic: Do not microwave food in plastic containers, as heat increases the release of phthalates into food. Transfer food to a non-plastic vessel before heating, even if the container says it is microwave safe.
• Choose fresh, whole foods: Phthalates may leach into food from packaging, so prioritize fresh, whole foods and avoid heavily processed or packaged items whenever possible.
• Check product labels: Look for products labeled "phthalate-free," especially in personal care items, toys, and food packaging.
• Improve home ventilation: Phthalates can be present in indoor air and dust. Regularly ventilate your home and clean with a vacuum equipped with a HEPA air filter to reduce airborne exposure.
• Support regulatory action: Advocate for policies and initiatives aimed at reducing phthalate use in consumer products and improving waste management practices.

It is important to note that the study shows broad associations between phthalate exposure and heart disease, but does not definitively prove that DEHP alone is the sole cause. Other chemicals in plastics could also contribute to the observed risk .

Beyond reducing plastic exposure, you can protect your heart through other proven lifestyle measures. Eating a balanced diet rich in whole foods, exercising regularly, avoiding tobacco and alcohol, prioritizing sleep and mental health, and getting regular checkups with your physician all support cardiovascular health .

The connection between everyday household plastics and serious health outcomes underscores why clean living extends beyond food choices to the materials we use to store and prepare that food. As awareness of phthalate risks grows, many consumers are making the switch to plastic-free kitchens as part of a broader commitment to environmental and personal health.