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November 14, 2019

Does Coffee Protect Against DNA Damage?

We all read different reports on the possible health benefits of coffee. But, here is some exciting news for those who love to start their day with a “Cup of Joe.” Coffee seems to reduce DNA damage. And, guess what DNA damage does? It leads to premature or accelerated aging.

Does coffee protect against DNA damage?
Photo by Nathan Dumlao on Unsplash

What is DNA?

DNA is short for deoxyribonucleic acid. DNA contains our genetic information It represents our heredity material in all of our cells. DNA contains the instructions that every organism – not just humans – needs to grow, develop, and reproduce. For a more detailed explanation of DNA see this link.

When DNA is damaged our risk of cardiovascular disease, cancer, autoimmune disorders, diabetes, arthritis, and other chronic diseases and conditions go up.

So you definitely want to protect your DNA as much as possible. A healthy diet goes a long way and is probably the most important influence that affects the integrity of our DNA.

Coffee and DNA Protection

This study published in 2018 reported that consumption of dark roast coffee was associated with a reduction in DNA damage of 23%. In the study participants consumed 500 milliliters or about 4 cups of coffee daily and compared to a control group.

At the end of the study DNA damaged was measured. It was also measured before the study. The coffee group showed 23% less DNA damage even though their pre-study DNA damage was 16% higher than the control group.

The results varied between men and women. There was 26% less DNA damage in women and 20% less DNA damage among men.

It was once believed that coffee consumption led to stiffness of the arteries which is not a desirable outcome as it would lead to an increase in high blood pressure and heart diseases. . A British study was designed to look at this and showed that coffee does not lead to arterial stiffeness even in those who consume 3 or more cups of coffee a day.

We have written about the health benefits of coffee before. We keep learning new things about the health benefits of coffee and how it seems to improve health.

So drink up!

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Dr. Joe Jacko


Dr. Joe is board certified in internal medicine and sports medicine with additional training in hormone replacement therapy and regenerative medicine. He has trained or practiced at leading institutions including the Hughston Clinic, Cooper Clinic, Steadman-Hawkins Clinic of the Carolinas, and Cenegenics. He currently practices in Columbus, Ohio. Read more about Dr. Joe Jacko

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