Effects of green-leafy vegetable intake on postprandial glycemic and lipidemic responses and α-tocopherol concentration in normal weight and obese men.
نویسندگان
چکیده
Vegetable consumption has been encouraged as a component of nutritional education for obese and insulin-resistant patients. However, the benefits of vegetable intake in a therapeutic diet on postprandial glycemic and lipidemic responses have not been clarified. We studied the effects of the intake of spinach, a green-leafy vegetable rich in dietary fiber and α-tocopherol, with a fat-rich meal on postprandial glycemic and lipidemic changes. Fourteen normal weight and 10 obese men consumed three test meals of bread, as a control, bread and butter, and bread and butter with boiled spinach. Blood samples were obtained prior to and 30, 60, 120, 180 and 240 min after consuming the test meals. Compared with the bread meal, consumption of the bread and butter meal showed a reduced peak glucose response at 30 min in normal (p<0.05) but not in obese subjects. The increase in triglyceride and decrease in LDL-cholesterol were greater after the butter-containing meal than after the bread meal (p<0.05). The α-tocopherol/lipid level decreased and remained low after the bread and butter meal, but the decrease was smaller with the spinach-containing meal in obese subjects (p<0.05). These results suggest that green-leafy vegetable intake with a fat-rich meal is effective for supplying postprandial α-tocopherol in obese subjects, but consumption of a regular-sized dish cannot be expected to improve abnormal postprandial hyperglycemic or hyperlipidemic responses.
منابع مشابه
Comparison of Serum Levels of Hormone Omentin-1 and Insulin Resistance Markers in Active-Obese, Inactive-Obese and Inactive Normal-Weight Men
Background Omentin-1 is an adipokine, mainly produced by visceral adipose tissue that improves insulin resistance. Objective This study compared the serum levels of omentin-1 and insulin resistance markers in active-obese, inactive-obese and inactive normal-weight men. Methods In this cross-sectional study, 45 men (35.0±4.2 years, no symptoms of illness) were assigned to active-obese (n=16, ...
متن کاملO-8: The Effect of Body Mass Index on SemenQuality and Reproductive Hormones
Background: Recent population-based studies suggest an elevated risk for subfertility among couples in which the male partner is obese and an increased likelihood of abnormal semen parameters among heavier men. Male factor infertility is associated with a higher incidence of obesity in the male partner. The aim of this review article is to study the effect of body mass index (BMI) on semen qual...
متن کاملEvaluation of Iron Deficiency and the Intake of Macro- and Micronutrients among Normal, Overweight, and Obese Children Under 5 Years in Amman
Background: This study primarily aimed to investigate the possible association between the risk of suffering from Iron Deficiency (ID) and body weight status among a group of obese, overweight, and normal body weight children. The second aim of this study was to assess Serum Iron (SI), Serum Ferritin (SF), Total Iron Binding Capacity (TIBC), Hemoglobin (Hb), and Body Mass Index (BMI) among the ...
متن کاملVegetable and fruit intake and risk of type 2 diabetes: Japan Public Health Center-based Prospective Study.
Vegetable and fruit intake has been associated with a reduced risk of cancer and CVD, but its relationship to the risk of type 2 diabetes remains unclear. We prospectively examined the association between vegetable and fruit intake and the incidence of type 2 diabetes. Subjects were 21,269 men and 27,168 women aged 45-75 years who participated in the second survey of the Japan Public Health Cen...
متن کاملEffect of 8 Weeks Aerobic Exercises and Green Coffee Supplement on Serum Myonectin, Meteorin-like, and Insulin Resistance in Obese Women
Background and purpose: The purpose of this research was to compare the effects of aerobic exercises and green coffee consumption as a supplement on serum meteorin-like, myonectin level, and insulin resistance in obese women in Isfahan, Iran. Materials and methods: A clinical trial was performed in 40 women who were randomly divided into four groups, including aerobic exercises (5 sessions ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of nutritional science and vitaminology
دوره 59 4 شماره
صفحات -
تاریخ انتشار 2013