title: A high-carbohydrate diet lowered blood pressure in healthy Chinese male adolescents.
abstract: Different diets consumed by individuals of different ethnicities, gender, and age may cause changes in blood pressure. The current study sought to investigate changes in blood pressures after consumption of a high-carbohydrate (high-CHO) diet by healthy Chinese adolescents. As a population, the Chinese consume a diet with a high carbohydrate content and they have a low incidence of hypertension and coronary artery disease. Dietary data were collected using a 3-day diet diary. Subjects were 672 high school students who were divided into a high-CHO diet group (≥ 55% carbohydrates) and a non-high-CHO diet group (< 55% carbohydrates, < 40% fats). Plasma glucose levels, heart rate, systolic blood pressure (SBP), and diastolic blood pressure (DBP) were measured. Body mass index (BMI), waist-to-hip ratio (WHR), pulse pressure (PP), and mean arterial pressure (MAP) were calculated. Results indicated that males had a higher BMI, glucose level, SBP, DBP, PP, and MAP than females. When diet was taken into account, males in the non-high-CHO diet group had a higher SBP and PP than females. Males in the high-CHO diet group had a higher glucose level than females. Males in the high-CHO diet group had a lower SBP (p = 0.004) and PP (p = 0.002) than males in the non-high-CHO diet group and females in the high-CHO diet group had a lower glucose level (p = 0.003) than females in the non-high-CHO diet group. After adjusting for age, BMI, WHR, heart rate, the total daily energy intake, and the intake of vitamin C, calcium, sodium, potassium and magnesium, significant differences in SBP and PP were noted in males. These results indicate that male adolescents consuming a high-CHO diet had a lower SBP and PP than males consuming a non-high-CHO diet.
authors.affiliation: Department of Biochemistry and Molecular Biology, West China School of Preclinical and Forensic Medicine, Sichuan University.
authors.forename: Xingchun
authors.initials: X
authors.lastname: Zhu
authors.forename: Jia
authors.initials: J
authors.lastname: Lin
authors.forename: Yongyan
authors.initials: Y
authors.lastname: Song
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.forename: Rongrong
authors.initials: R
authors.lastname: Zhang
authors.forename: Mei
authors.initials: M
authors.lastname: Fan
authors.forename: Yuanhao
authors.initials: Y
authors.lastname: Li
authors.forename: Rong
authors.initials: R
authors.lastname: Tian
authors.forename: Dingzhi
authors.initials: D
authors.lastname: Fang
mesh_terms: D000293:Adolescent; D044466:Asian People; D001794:Blood Pressure / Q000502:physiology*; D015992:Body Mass Index; D004040:Dietary Carbohydrates; D002149:Energy Intake; D005260:Female; D006801:Humans; D008297:Male
chemical_list: D004040:Dietary Carbohydrates