Cruciferous Vegetable Intake Questionnaire Improves Cruciferous Vegetable Intake Estimates

Thomson, Cynthia A.; Newton, Tara R.; Graver, Ellen; Jackson, Kelly A.; Reid, Phyllis M.; Hartz, Vern; Cussler, Ellen; Hakim, Iman A.

doi:10.1016/j.jada.2007.01.016

Cited by 31 publications

(26 citation statements)

References 52 publications

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“…capitata) and broccoli (B. oleracea L. var. italica), are among the most commonly consumed and economically important vegetables in the world [22,23]. The health benefits of brassicaceous vegetables are not only associated with their mineral composition but also their vitamin content and the presence of other organic compounds, particularly glucosinolates [22,24,25].…”

Section: Introductionmentioning

confidence: 99%

“…italica), are among the most commonly consumed and economically important vegetables in the world [22,23]. The health benefits of brassicaceous vegetables are not only associated with their mineral composition but also their vitamin content and the presence of other organic compounds, particularly glucosinolates [22,24,25]. Although leafy vegetables currently contribute proportionally less Zn to human diets than animal products or cereals [3,4], their greater potential for Zn biofortification could be exploited to increase Zn intake and improve human health.…”

Section: Introductionmentioning

confidence: 99%

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Limits to the Biofortification of Leafy Brassicas with Zinc

et al. 2018

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Many humans lack sufficient zinc (Zn) in their diet for their wellbeing and increasing Zn concentrations in edible produce (biofortification) can mitigate this. Recent efforts have focused on biofortifying staple crops. However, greater Zn concentrations can be achieved in leafy vegetables than in fruits, seeds, or tubers. Brassicas, such as cabbage and broccoli, are widely consumed and might provide an additional means to increase dietary Zn intake. Zinc concentrations in brassicas are limited primarily by Zn phytotoxicity. To assess the limits of Zn biofortification of brassicas, the Zn concentration in a peat:sand (v/v 75:25) medium was manipulated to examine the relationship between shoot Zn concentration and shoot dry weight (DW) and thereby determine the critical shoot Zn concentrations, defined as the shoot Zn concentration at which yield is reduced below 90%. The critical shoot Zn concentration was regarded as the commercial limit to Zn biofortification. Experiments were undertaken over six successive years. A linear relationship between Zn fertiliser application and shoot Zn concentration was observed at low application rates. Critical shoot Zn concentrations ranged from 0.074 to 1.201 mg Zn g −1 DW among cabbage genotypes studied in 2014, and between 0.117 and 1.666 mg Zn g −1 DW among broccoli genotypes studied in 2015-2017. It is concluded that if 5% of the dietary Zn intake of a population is currently delivered through brassicas, then the biofortification of brassicas from 0.057 to > 0.100 mg Zn g −1 DW through the application of Zn fertilisers could increase dietary Zn intake substantially.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Limits to the Biofortification of Leafy Brassicas with Zinc

et al. 2018

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“…botrytis), broccoli (Brassica oleracea var. italic) and cabbage are the most commonly consumed vegetables in the United States (Thomson et al, 2007). Leafy greens are economically affordable and represent an important source of nutrients for people in the lower income sector (Kawashima and Soares, 2003).…”

Section: Introductionmentioning

confidence: 99%

Comparative mineral composition among canola cultivars and other cruciferous leafy greens

Miller‐Cebert

Sistani

Cebert

2009

Journal of Food Composition and Analysis

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“…Recently, a food frequency questionnaire (FFQ) has been used to assess dietary change in a number of large clinical intervention trials where the 24-h recall or diet record would not have been practical or cost effective. A few of these large clinical trials have validated the ability of the FFQ to assess nutrient intake using diet records, diet recalls, or biomarkers as the reference (11)(12)(13)(14)38,39).…”

Section: Introductionmentioning

confidence: 99%

“…We note that none of the existing validated questionnaires for intervention trials (11)(12)(13)(14)38,39) have an item for walnuts or other specific nuts. Moreover, the validity of an FFQ to measure a specific food that is part of a dietary intervention has, to date, been done in 1 trial of cruciferous vegetables and breast cancer (38,39). We are especially interested in validation of a questionnaire to assess compliance with future dietary interventions for the prevention and/or management of chronic diseases (cancer, cardiovascular disease) and associated biomarkers.…”

Section: Introductionmentioning

confidence: 99%

Relative Validity of a Food Frequency Questionnaire Used to Assess Food Intake During a Dietary Intervention Study

Segovia‐Siapco

Singh

Haddad

et al. 2008

Nutrition and Cancer

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To develop a cost-effective alternative for evaluating dietary intake in large-scale intervention trials of cancer and cardiovascular disease outcomes, we designed and validated a semiquantitative food frequency questionnaire (FFQ). We collected 6 to 8 of the 24-hr dietary recalls from 87 adults (ages 30-72 yr) who were randomly assigned to a walnut-supplemented diet or a control diet in a 6-mo dietary intervention trial. Relative validity of a 171-item FFQ in assessing intake of selected foods and the prescribed intervention (intake > or =25 g/day or intake < 2 g of walnuts) was determined using 24-h dietary recalls as the reference. De-attenuated correlations between FFQ and dietary recalls were .82 for walnuts, .80 for fruits, .79 for grains, .77 for vegetables, .63 for water, .44 for sweets, and .36 for dairy/eggs. High within-person variation did not allow de-attenuation for the remaining foods, but uncorrected correlations were high (> .7) for the beverage variables. The FFQ correctly classified 86 out of 87 subjects in the 2 prescribed intervention groups. The FFQ can provide an accurate measure of a food-based intervention (i.e., walnut supplementation) in a trial setting and can also accurately estimate a number of other food groups consumed during the trial.

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Cruciferous Vegetable Intake Questionnaire Improves Cruciferous Vegetable Intake Estimates

Cited by 31 publications

References 52 publications

Limits to the Biofortification of Leafy Brassicas with Zinc

Limits to the Biofortification of Leafy Brassicas with Zinc

Comparative mineral composition among canola cultivars and other cruciferous leafy greens

Relative Validity of a Food Frequency Questionnaire Used to Assess Food Intake During a Dietary Intervention Study

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