Ask the doctor: Does folic acid improve immunity?
Since folate helps make and repair DNA, it makes theoretical sense that a deficiency of the vitamin could hamper immunity. In some animal experiments, severe folate deficiency has been found to impair immunity, but this hasn't yet been shown in human studies, and even in animals, the health impact remains unclear. With regard to taking higher-than-recommended doses of folate or folic acid to prevent disease or improve overall health, the evidence from clinical trials is conflicting.
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.
