Proteinintag och blodtryck.

[Eddie Vedder]

För någon vecka sedan postade jag den här metastudien som handlade om hur mjölkprotein förefaller inverka positivt på blodtrycket.

Här är en ny studie som återigen undersöker proteinintagets effekt på blodtryck (och får positiva resultat) och då främst vegetabiliskt protein:

Abstract
Observational and clinical studies suggest that high protein intake, particularly protein from plant sources, might reduce blood pressure (BP). To examine the association of dietary protein with BP, we analysed data from PREMIER, an 18-month clinical trial (n=810) that examined the effects of two multi-component lifestyle modifications on BP. We examined the association of protein intake with BP, and in particular the independent relationship of plant and animal protein with BP. Multivariable linear regression analyses were performed with both cross-sectional and longitudinal data. Dietary plant protein was inversely associated with both systolic and diastolic BP in cross-sectional analyses at the 6-month follow-up (P=0.0045 and 0.0096, respectively). Fruit and vegetable intake was also inversely associated with both systolic and diastolic BP cross-sectionally at 6 months (P=0.0003 and 0.0157, respectively). In longitudinal analyses, a high intake of plant protein at 6 months was marginally associated with a reduction of both systolic and diastolic BP from baseline to 6 months only (P=0.0797 and 0.0866, respectively), independent of change in body weight and waist circumference. Furthermore, increased intake of plant protein, and fruits and vegetables was significantly associated with a lower risk of hypertension at 6 but not at 18 months. Results of this study indicate that plant protein had a beneficial effect on BP and was associated with a lower risk of hypertension at 6 months. Our data, in conjunction with other research, suggest that an increased intake of plant protein may be useful as a means to prevent and treat hypertension.

http://www.nature.com/jhh/journal/v2...hh200864a.html

The relationship between dietary protein intake and blood pressure: results from the PREMIER study. Journal of Human Hypertension (2008) 22, 745–754.


MEN OBSERVERA att det handlade om positiv inverkan på blodtryck vid hög konsumtion av frukt och grönt rent allmänt. Med andra ord kan det nog vara svårt att kontrollera för en faktor som vegetabiliskt protein just. Finns ju mer fördelar med den typen av kost än enbart proteinet så där får man kanske se upp med att dra för tydliga slutsatser.

Och utöver det faktum att man rent generellt höll en god kosthållning minskade kaloriintaget (således även kroppsvikten) samt att fysisk aktivitet ökades:

Systolic and diastolic BP, body weight and waist circumference significantly decreased, and physical activity significantly increased at 6 and 18 months when compared with baseline levels (all P<0.0001). Mean total caloric intake of all participants (overall across all three groups) decreased from 1939 to 1713 kcal day-1 at 6 months (P<0.0001) and to 1705 kcal day-1 at 18 months (P<0.0001) (data not presented in table).

Jag tycker det blir väldigt svårt att peka för mycket på EN faktor, men likväl intressant.

[n1tro]

tack för posten eddie!!