You can C clearly now
In 1972, the Johnny Nash song "I Can See Clearly Now" was an anthem to optimism. And in 2026, so are the words of researchers looking at the power of Vitamin C to provide (as the song says) a "bright, bright sun-shiny day."
Vitamin C helps tamp down inflammation, helps brain cells communicate more effectively and reduces cancer risks from added dietary nitrates, such as those found in bacon and salami. (There are the good-for-you nitrates in dark leafy greens and root vegetables.)
Two new studies highlight C's benefits. The first, published in PLOSOne, found that older adults with lower blood levels of vitamin C had symptoms of reduced cognitive function and measurable loss of brain volume and structural integrity of the gray matter, impacting memory and decision-making.
The second study, published in the Journal of Theoretical Biology, used mathematic modelling to reveal that taking a vitamin C supplement could partially reduce the presence of a cancer-risky chemical that forms in the body after consuming nitrates and nitrites in processed red meats. (It's even better to never eat them!)
So, see your way to getting a daily dose of C from berries, leafy greens and citrus fruits or take a multivitamin multimineral supplement. The recommended dietary allowance is 90 milligrams for men and 75 milligrams for women age 19 and older. However, a 1/2 cup of red acerola cherries contains 1,650 milligrams! That's OK; the tolerable upper intake level is more than 2,000 milligrams for folks ages 19 and older.
See for yourself, the C-loaded taste treats you can make in my "What to Eat When Cookbook."
Health pioneer Michael Roizen, M.D., is chief wellness officer emeritus at the Cleveland Clinic and author of four No. 1 New York Times bestsellers. Check out his latest, "The Great Age Reboot: Cracking the Longevity Code for a Younger Tomorrow," and find out more at www.4YOUngevity.com. Email your health and wellness questions to Dr. Mike at questions@4YOUngevity.com.
(c)2026 Michael Roizen, M.D.
Distributed by King Features Syndicate, Inc.
(c) 2026 Michael Roizen, M.D. Distributed by King Features Syndicate, Inc.
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