Dietary macronutrients and blood pressure in southwestern China.
OBJECTIVE
To study the relationship between dietary macronutrients and blood pressure.


METHODS
A cross-sectional study.


METHODS
Liangshan, southwestern China.


METHODS
Three hundred and twelve Yi farmers living in a remote mountainous area, and 264 Yi migrants and 251 Han people living in an urban setting.


METHODS
Blood pressure and dietary nutrient intake, obtained by asking the subjects to recall their nutrient consumption during the previous 24 h, were measured on three consecutive days.


RESULTS
After adjusting for age, body mass index, alcohol use, urinary excretion of sodium, total energy intake and area of residence and after correcting for the effects of regression dilution bias, a 1 SD higher intake of dietary total protein (39 g) was associated with lower systolic (-3.55 mmHg), and diastolic (-2.16 mmHg) blood pressures. Likewise, a 1 SD higher fiber intake (10 g) was significantly associated both with a lower systolic (-2.20 mmHg) and with a lower diastolic (-2.08 mmHg) blood pressure.


CONCLUSIONS
Diets higher in protein and fiber content are associated with a lower blood pressure in the present population sample. The present results indicate that dietary intake of macronutrients might be important in the development and prevention of high blood pressure.
He
J
J
Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, MD, USA.
Klag
M J
MJ
Whelton
P K
PK
Chen
J Y
JY
Qian
M C
MC
He
G Q
GQ
D000328:Adult; D001794:Blood Pressure / Q000187:drug effects; D002681:China; D003430:Cross-Sectional Studies; D004032:Diet; D004043:Dietary Fiber / Q000494:pharmacology; D004044:Dietary Proteins / Q000494:pharmacology; D006801:Humans; D008875:Middle Aged; D009747:Nutritional Physiological Phenomena
D004043:Dietary Fiber; D004044:Dietary Proteins