Validation of Vitamin D-Specific Food Frequency Questionnaire against Food Records for Qatari Women
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DOI: 10.3390/foods9020195
Abstract: The measurement of vitamin D nutritional status through dietary assessment is cost effective. Food frequency questionnaire (FFQ) is usually validated against food records (FR). There is no vitamin D-specific FFQ for Qatar population. The objective… read more here.
Keywords: ffq three; vitamin specific; food; three day ... See more keywords