Sağlıklı Gönüllülerde Ceviz Tüketiminin Küçük Yoğun Düşük Yoğunluklu Lipoprotein ve Diğer Serum Lipid Faktörleri Üzerine Etkisi

Abstract

Objective: This study has investigated the effects of walnut consumption on the serum lipids and especially small dense lowdensity lipoprotein (sdLDL) values of healthy volunteers. Material and Methods: Volunteers participating in this study were asked to consume 30 grams of walnuts per day. Walnuts were presented to individuals in packages and were asked to consume at breakfast every morning for 21 days. An short message service (SMS) reminder was made every day so that individuals would not forget to intake walnuts. The blood values of subjects were measured at the beginning and the end of the study. Serums were obtained from the collected blood, and blood lipid parameters were analyzed routinely in the biochemistry laboratory. The sdLDL parameter was analyzed by the ELISA method. Results: The effect of walnut consumption on the lipid parameters was investigated. It was found that regular walnut consumption has significantly decreased the LDL (p<0.001), total cholesterol (p<0.001), sdLDL (p<0.001), and HDL (p=0.008) parameters. A significant change was not observed for the triglyceride levels. Besides, there is a statistically significant difference in carbohydrate, linoleic acid, and a-linolenic acid intake compared to Turkey Nutrition and Health Research. There was no significant difference in the individuals' energy, cholesterol, monounsaturated fatty acid, and saturated fatty acid intakes Also, food consumption record form was obtained from individuals. Conclusion: In this study, supplementation walnut to the healthy volunteers' diet has reduced LDL, sdLDL, and total cholesterol levels. We think that walnut consumption has a protective effect especially on cardiovascular risk factors.