The present systematic review and meta-analysis were conducted in order to investigate the effects of capsinoids and fermented red pepper paste (FRPP) supplementation on lipid profile. Relevant studies were identified by searches of five databases from inception to November 2021 using relevant keywords. All clinical trials investigating the effect of capsinoids and FRPP on total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were included. Out of 1,203 citations, eight trials that enrolled 393 participants were included. Capsinoids and FRPP resulted in a significant reduction in TC (weighted mean differences [WMD], −9.92 mg/dL; 95% confidence interval [CI], −17.92 to −1.92; p = 0.015) but no significant changes in TG (WMD, −19.38 mg/dL; 95% CI, −39.94 to 1.18; p = 0.065), HDL-C (WMD, 0.83 mg/dL; 95% CI, −0.76 to 2.42; p = 0.305) and LDL-C (WMD, −0.59 mg/dL; 95% CI, −4.96 to 3.79; p = 0.793). Greater effects on TC were detected in trials performed on duration lasting less than twelve weeks, mean age of > 40, both sexes, and sample size of > 50. TG was reduced by using FRPP in studies conducted on mean age of > 40. HDL-C increased by using FRPP in studies conducted on duration of < 12 weeks, mean age of > 40, and sample size of ≤ 50. Overall, these data provided evidence that capsinoids and FRPP supplementation has beneficial effects on TC but not TG, HDL-C, and LDL-C.
We aimed to examine the association between nutrient patterns and metabolic syndrome (MetS) in Iranian adults. In a cross-sectional study of 850 self-certified healthy women and men aged 20–59 years old, dietary data were assessed using three 24-hour recall. Anthropometric measures were done and blood samples were collected to measure serum fasting serum glucose and lipid profile. The MetS was defined using the International Diabetes Federation. Major nutrient patterns were identified using principle competent analysis. In the first nutrient pattern, the individuals in the fifth quintile had a higher intake of vitamins B1, B2, B3, B5, B6, B12, zinc, iron, saturated fatty acids (SFAs), and protein. In the second nutrient pattern, individuals in the first quintile had lower consumption of zinc, SFAs, vitamin E, α-tocopherol, oleic acid, polyunsaturated fatty acids, β-carotene, linolenic acid, and monounsaturated fatty acids, compared to the fifth quintile. Furthermore, in the third nutrient pattern, the individuals in the fifth quintile had a higher intake of potassium, magnesium, phosphorous, calcium, protein, carbohydrate, vitamin C, and folate compared to other quintiles. We identified the second pattern had an indirect association with systolic and diastolic blood pressure, triglycerides, fasting blood sugar (p < 0.001 for all), and total cholesterol (p = 0.04) when it was controlled for body weight. Our findings showed that nutrient patterns may have an association with MetS components with mediating body weight.
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