About The Study: In this cohort study, higher intake of butter was associated with increased mortality, while higher plant-based oils intake was associated with lower mortality. Substituting butter with plant-based oils may confer substantial benefits for preventing premature deaths.
Corresponding Author: To contact the corresponding author, Dong D. Wang, MD, ScD, email dow471@mail.harvard.edu.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamainternmed.2025.0205)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
# # #
Media advisory: The full study and commentary are linked to this news release. This study is being presented at the American Heart Association EPI/Lifestyle Scientific Sessions 2025.
Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/10.1001/jamainternmed.2025.0205?guestAccessKey=29d87feb-9f96-4666-b23b-8a9487d0207d&utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=030625
Journal
JAMA Internal Medicine