← Home
The Proof · June 2, 2025 · 74m
Butter vs Plant Oils: What the Evidence Says About Mortality and Heart Health
Naturopathic doctor Dr. Matthew Nagra reviews the evidence on butter versus plant oils (olive, canola, soybean) for cardiovascular health and all-cause mortality, challenging claims that butter is benign or that seed oils are harmful.
This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.
Highlights
•
Seed oil panic is not supported by evidence — linoleic acid does not cause inflammation in humans
Nagra: despite viral claims, controlled human trials consistently show that replacing saturated fat with linoleic acid (the main fat in seed oils) reduces cardiovascular events and does not increase inflammation, oxidative stress, or omega-6:omega-3 imbalance.•
Replacing 5% of calories from saturated fat with polyunsaturated fat reduces heart disease by 25%
Nagra: the Nurses' Health Study and pooled cohort analyses show that isocaloric replacement of 5% of energy from saturated fat with polyunsaturated fat reduces coronary heart disease risk by approximately 25%. This is one of the most replicated findings in nutrition.Was this useful?