Abstract
Evidence linking individual cooking oil consumption with total mortality is limited in China. The aim of this study was to examine the associations of intakes of plant-sourced and animal-sourced cooking oils with total mortality in a Chinese nationwide cohort. We analyzed data from 14,305 adults aged ≥20yat entry in the China Health and Nutrition Survey (CHNS). The 3-day 24-h dietary records were used to collect dietary information. Cox proportional hazards regression models were established to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) of all-cause death. Overall 1006 deaths were documented during a median of 14 years (199,091 person-years) of follow-up. Multivariate-adjusted HRs (95% CIs) of total mortality via comparing the highest tertile of cooking oil consumption with no consumption were 0.86 (0.70-1.06) for lard, 0.59 (0.47-0.74) for peanut oil, 0.71 (0.54-0.93) for soybean oil, 0.76 (0.61-0.94) for canola oil, 0.71 (0.50-0.99) for salad oil, and 0.59 (0.44-0.79) for other plant cooking oils. Replacing animal cooking oils with 1 tablespoon/d of total plant cooking oils or other plant cooking oils was related to 4% or 17% lower total mortality, respectively, while consumption of peanut oil or salad oil in replacement of animal cooking oils had a marginal inverse association with total mortality. Intakes of plant-sourced cooking oils, including peanut oil, soybean oil, canola oil, salad oil, and other plant cooking oils and substituting plant cooking oils for animal cooking oils were associated with lower total mortality among general Chinese population (NCT03259321).
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