Research
Macro partitioning
High intake of trans fatty acids and animal (saturated) fats increases the risk of type 2 diabetes, while vegetable (unsaturated) fats are associated with a reduced risk.
Replace saturated and trans fats with unsaturated vegetable fats. Focus on sources like vegetable oils, nuts, and seeds. This shift is associated with a lower risk of type 2 diabetes, independent of total fat calories.
GoodSupportsHIGH confidence
a positive association between a higher trans fatty acid intake and risk of diabetes; a negative association between a 5 % higher energy intake from polyunsaturated fat and incidence of diabetes
Why this rating
Supported by multiple large prospective studies (Nurses' Health, Health Professionals) and intervention studies on insulin sensitivity.
Source
Diet composition and the risk of type 2 diabetes: epidemiological and clinical evidence
M. Parillo et al. · British Journal Of Nutrition · 2004
DOI 10.1079/bjn20041117
narrative_reviewCited 185×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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