Is plasma vitamin C an appropriate biomarker of vitamin C intake? A systematic review and meta-analysis.

ABSTRACT:

Background

As the primary source of dietary vitamin C is fruit and to some extent vegetables, the plasma level of vitamin C has been considered a good surrogate or predictor of vitamin C intake by fruit and vegetable consumption. The purpose of this systematic review was to investigate the relationship between dietary vitamin C intakes measured by different dietary methods and plasma levels of vitamin C.

Method

We searched the literature up to May 2006 through the OVID interface: MEDLINE (from 1960) and EMBASE (from 1988). We also reviewed the reference lists in the articles, reviews, and textbooks retrieved. A total of 26 studies were selected and their results were combined using meta-analytic techniques with random-effect model approach.

Results

The overall result

SUBMITTER: Dehghan M 

PROVIDER: S-EPMC2200644 | biostudies-literature | 2007 Nov

REPOSITORIES: biostudies-literature