There were no significant differences in changes in body weight, waist circumference, serum lipids, or glucose between groups. Subgroup analyses showed that blend oil significantly decreased SBP and DBP compared with the two other groups in participants with BP ≥ 130/80 mmHg and body mass index ≥ 25. Reductions of SBP and DBP in the blend oil group were more significant than those in the soybean oil group with P = 0.008 and P = 0.026, and lard group with P < 0.001 and P < 0.001, respectively. After the 12-week intervention, reductions in both systolic blood pressure (SBP) and diastolic blood pressure (DBP) were greater in the blend oil group than in the two other groups (P = 0.023 and 0.008 for the interaction between diet group and time, respectively). The 245 (73.4%) participants completed the study.
The 334 healthy subjects (mean age 33.1 years, 60% women) were randomized into three isoenergetic diet groups with three different edible oils (30 g/day) (soybean oil, lard, and blend oil ) for 12 weeks. This was a parallel, three-arm, randomized controlled-feeding trial. This study aimed to evaluate the effects of blend oil on cardiometabolic risk factors in healthy subjects.
Emerging evidence highlights that lard plus soybean oil (blend oil) could be more beneficial for body weight and liver function than a single use of the two oils. Lard has been consumed by humans for thousands of years, but its consumption has declined substantially in the last few decades, because of negative publicity about the consumption of animal-derived saturated fats.
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