In the news: Large trial will test vitamin D and omega-3s
While there's no "magic bullet" for health and nutrition, few contenders have looked as promising as vitamin D. Likewise, omega-3 fatty acids have attracted attention. (They're promoted mainly for heart health, but some research hints at anti-cancer and other benefits as well.) However, the preventive value of these nutrients is untested.
Vitamin D is best known as calcium's partner in maintaining bone health. But a growing body of evidence suggests that it may help reduce our risk for many ills, including heart disease, cancer, diabetes, multiple sclerosis, and depression. The data are sufficiently compelling that some experts advise taking at least 800 to 1,000 international units (IU) of vitamin D per day (more than twice the officially recommended intake) as a hedge against chronic disease. Yet no one knows whether a higher intake will actually help prevent disease.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.
Sign Me UpAlready a member? Login ».
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
