Research

Macro partitioning

Replacing saturated fat with refined carbohydrates provides no cardiovascular benefit, whereas substituting polyunsaturated fats (PUFA) for saturated fat or refined carbohydrates significantly reduces cardiovascular disease risk.

Stop focusing solely on cutting saturated fat. If you reduce saturated fat, make sure you replace it with polyunsaturated fats (like those in nuts, seeds, and vegetable oils) rather than refined carbs (like white bread or sugar). Replacing saturated fat with refined carbs offers no heart benefit, but replacing it with PUFA significantly lowers your risk of heart disease.

StrongQualifiesHIGH confidence
evidence from observational studies and randomized clinical trials demonstrates that replacing saturated fat with carbohydrates, specifically refined, has no benefit on CVD risk, while substituting polyunsaturated fats for either saturated fat or carbohydrate reduces risk.
Ann G. Liu et al. · Nutrition Journal · 2017

Why this rating

Supported by multiple meta-analyses of prospective cohort studies and randomized controlled trials cited in the text.

Source

A healthy approach to dietary fats: understanding the science and taking action to reduce consumer confusion

Ann G. Liu et al. · Nutrition Journal · 2017

DOI 10.1186/s12937-017-0271-4

narrative_reviewCited 277×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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