The Sentinel: Microplastics: Why you should worry about in our food supply?

Microplastics: Why you should worry about in our food supply?

Dr. Ovadia says microplastics may have negative effects on testosterone in men and estrogen and progesterone in women. This could mean reduced muscle mass and libido for men.

A turtle sits on a pile of trash on the beach — A turtle makes his way over a mound of decaying plastic bottles on a beach. The byproduct from the decay are called microplastics or nanoplastics, which are incredibly small pieces of plastic that can get into our body. Scientists don’t fully understand microplastics’ impact on the human body. A lot of research is needed to determine the negative impact on our health.

by Tim Ditman
OSF Healthcare

URBANA - From news reports to social media blurbs to medical studies, they’ve been in the public eye a lot lately. And experts say that likely won’t change.

We’re talking about microplastics or nanoplastics, incredibly small pieces of plastic that can get into our body.

OSF Cardiothoracic surgeon Dr. Philip Ovadia

Photo provided

Philip Ovadia, MD

So, how concerned should we be? Philip Ovadia, MD, a cardiothoracic surgeon at OSF HealthCare, says this issue will continue to be studied for years. But there are things you can do now to optimize your health and reduce your risk of problems.

“We’re increasing our understanding of the toxins in our environment. Our environment has become more toxic, and that’s a challenge to our health,” Dr. Ovadia says. “The best thing for people to do is to control what you can control. What are you eating? What are you using on your body? What is your lifestyle like? How active are you?”

Where do microplastics come from? What harm can they do?

Dr. Ovadia says microplastics can be purposefully manufactured as part of a product. Toothpaste and skin exfoliants are examples. Or, microplastics can occur when larger plastic products, like water bottles, break down. The microplastics can then get into our environment, such as ocean water or our foods and drinks.

“There’s even some evidence that these things can spread in the air, and we can breathe them in,” Dr. Ovadia adds.

Dr. Ovadia points to three areas where ingesting microplastics could be cause for concern.

Intestines: Dr. Ovadia says microplastics can irritate our intestines, leading to inflammation of tissue and a condition called leaky gut.
“That’s when we get a breakdown of the barrier that lines our intestines. That allows some things in our food that aren’t supposed to get across into our bloodstream to get into the bloodstream. Many of these things set off inflammation in the body,” Dr. Ovadia says.
Endocrine system: Dr. Ovadia says microplastics may have negative effects on testosterone in men and estrogen and progesterone in women. This could mean reduced muscle mass and libido for men. For women, it could mean changes in the menstrual cycle, an increased infertility risk and, for young women, earlier start of puberty.
Blood vessels: Dr. Ovadia points to a 2024 study where experts looked at plaque removed from the carotid artery (located in the neck) of study participants.
“For over half of the people, there was evidence of microplastics in those plaques. Furthermore for the people who had those microplastics, over the next three years they had a four-and-a-half times increased risk for a heart attack, a stroke or dying,” Dr. Ovadia says.
“It doesn’t prove that the plastics are causing the problems,” Dr. Ovadia adds. “But it’s certainly concerning data. And I, as a heart surgeon, start to worry. If we see these in plaques in arteries in the neck, are they also in the plaques in arteries of the heart patients I operate on?”

Warming up food in a microwave — Heating food in certain types of plastic containers can be harmful due to the leaching of chemicals into the food. Microwaving food in plastic, especially those not specifically labeled as microwave-safe, can cause chemicals from the plastic to transfer to the food

What should I do?

So, do we need to panic about microplastics? Should the health concerns be akin to smoking?

Not now, Dr. Ovadia says. He reiterates that studies on this topic are in the early stages, and experts don’t fully understand microplastics’ impact on our health.

“It’s an unknown risk at this point,” he says.

But, there are small, everyday steps you can take to reduce the risk of microplastics entering your body.

Drink from a glass or stainless steel bottle, not a plastic bottle.
Use a good water filtration system. That could be built into your home’s water supply, or you could purchase a filter to attach to your faucet or water bottle.
Make food choices that minimize your exposure to plastic wraps and containers. Think the to-go boxes you get at a restaurant. Instead, eat more fresh, non-packaged food. Find these in the outer aisles of the grocery store.
“Eat the things that grow in the ground, and eat the things that eat the things that grow in the ground,” Dr. Ovadia says with a smile. “That’s how I always explain it to people. Try eating more whole, real food. That will minimize your exposure to microplastics.”
Look into the cosmetics and toiletries you use. Dr. Ovadia admits the jargon on a label can be difficult to understand. Instead, research the brands themselves. If, for example, a toothpaste brand is pledging to reduce microplastics in their products, it’s a green flag.

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