Human study · Supplements / medicine · 2 Sept 2026
Healthier fats linked to longer survival after prostate cancer diagnosis
Source: Medical Xpress
What the research found
Study (observational). Using the Health Professionals Follow-Up Study, Harvard Chan and McGill researchers followed 4,884 men with nonmetastatic prostate cancer for a median 12.8 years (JAMA Network Open). Highest versus lowest saturated-fat intake associated with a 24% higher all-cause death rate (10-year risk 26.4% vs 23.4%), driven mainly by cardiovascular disease and other cancers, not prostate cancer itself. Modeled replacement of about 10% of calories from animal fat with plant fat associated with 16% lower all-cause mortality; replacing 5% of calories from saturated fat with monounsaturated fat associated with 20% lower. Association is not causation. Not a cancer treatment and not a supplement protocol. Simple food swaps (olive oil, nuts, seeds, avocado) are educational.
Evidence level: Human study. A study in people, but an association isn't proof of cause.
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