For a healthy diet, focus on food quality
For some, what you eat may be even more important than how much.
- Reviewed by Teresa Fung, ScD, RD, Contributor; Editorial Advisory Board Member, Harvard Health Publishing

Oatmeal or yogurt for breakfast? Tuna or chicken on your salad? Every day you make lots of food decisions. Now, a growing body of research is showing that how often you opt for the highest-quality food choices can have a powerful influence on your health.
To continue reading this article, you must log in.
Source matters. Subscribe to HarvardHealthOnline+ FREE for 30 days for unlimited access to the site – where all content is reviewed by an HMS physician or faculty expert.
With HHO+ you get these exclusive benefits:
- Unlimited access to all Harvard Health Online content
- 4 expertly curated newsletters delivered monthly
- Customized website experience aligned to your health goals
- In-depth health guides on topics like sleep, exercise, and more
- Interactive features like videos and quizzes
- Members-only access to exclusive articles and resources
SPECIAL OFFER! UNLOCK EXPERT ACCESS for 30 days FREE!
Already a member? Login ».
About the Author
Joyce Hendley, Staff Writer
About the Reviewer
Teresa Fung, ScD, RD, Contributor; Editorial Advisory Board Member, Harvard Health Publishing
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.