"What is olive mill wastewater?
OMW is the leftover liquid from pressing olives to make olive oil. “For years, it was seen as a waste product, but it’s now getting attention for potential health benefits since it’s packed with antioxidants and bioactive compounds that don’t make it into olive oil,” says Pamela Tambini, MD, an internal physician and medical director at Engage Wellness.

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Mediterranean cultures have long used OMW as a natural remedy, but it wasn’t until researchers dug deeper into the substance’s bioactive compounds — such as flavonoids, hydroxytyrosol, and oleuropein — that they realized we should all take advantage of its perks.

“Studies found that OMW is loaded with polyphenols, antioxidants, and anti-inflammatory compounds, and though these compounds are also present in olive oil, they’re in much smaller amounts,” Tambini says. “Scientists essentially realized that what was once considered waste could actually be a super-concentrated health booster.”

Is olive mill wastewater healthy?
You bet. At its core, OMW is rich in polyphenols, plant compounds known for their antioxidant and anti-inflammatory effects, which help the body fight oxidative stress (an imbalance in free radicals and antioxidants that can lead to cell damage) linked to aging, heart disease, and other chronic illness, Tambini says. The acidic liquid is also deemed a nutraceutical since it provides health benefits beyond basic nutrition, helping to prevent or manage disease, says functional medicine physician Shivani Amin, MD...."