scholarly journals Assessing stages of change for fruit and vegetable intake in young adults: a combination of traditional staging algorithms and food-frequency questionnaires

2003 ◽  
Vol 18 (2) ◽  
pp. 224-236 ◽  
Author(s):  
J. Ma
Keyword(s):  
Young Adults ◽  
Stages Of Change ◽  
Vegetable Intake ◽  
Fruit And Vegetable Intake ◽  
Fruit And Vegetable ◽  
Food Frequency

scholarly journals Biochemical Validation of a Self-Administered Food Frequency Questionnaire to Assess Diet Using Carotenoids and Vitamins E and D in Male Adolescents in Spain

Antioxidants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 750
Author(s):  
Leyre Notario-Barandiaran ◽  
Eva-María Navarrete-Muñoz ◽  
Desirée Valera-Gran ◽  
Elena Hernández-Álvarez ◽  
Encarnación Donoso-Navarro ◽  
...  
Keyword(s):  
Vitamin E ◽  
Food Frequency Questionnaire ◽  
Vegetable Intake ◽  
Correlation Coefficients ◽  
Fruit And Vegetable Intake ◽  
Fruit And Vegetable ◽  
Sample Mean ◽  
Food Frequency ◽  
Male Adolescents ◽  
Β Carotene

Reliable tools to evaluate diet are needed, particularly in life periods such as adolescence in which a rapid rate of growth and development occurs. We assessed the biochemical validity of a self-administered food frequency questionnaire (FFQ) in a sample of Spanish male adolescents using carotenoids and vitamin E and D data. We analyzed data from 122 male adolescents aged 15–17 years of the INMA-Granada birth cohort study. Adolescents answered a 104-item FFQ and provided a non-fasting blood sample. Mean daily nutrient intakes and serum concentration were estimated for main carotenoids (lutein-zeaxanthin, β-cryptoxanthin, lycopene, α-carotene and β-carotene), vitamins E and D and also for fruit and vegetable intake. Pearson correlation coefficients (r) and the percentage of agreement (same or adjacent quintiles) between serum vitamin concentrations and energy-adjusted intakes were estimated. Statistically significant correlation coefficients were observed for the total carotenoids (r = 0.40) and specific carotenoids, with the highest correlation observed for lutein–zeaxanthin (r = 0.42) and the lowest for β-carotene (0.23). The correlation coefficient between fruit and vegetable intake and serum carotenoids was 0.29 (higher for vegetable intake, r = 0.33 than for fruit intake, r = 0.19). Low correlations were observed for vitamin E and D. The average percentage of agreement for carotenoids was 55.8%, and lower for vitamin E and D (50% and 41%, respectively). The FFQ may be an acceptable tool for dietary assessment among male adolescents in Spain.

scholarly journals MyPlate, Half-Plate, and No Plate: How Visual Plate-related Dietary Benchmarks Influence Meal Composition

2021 ◽  
Author(s):  
Brian Wansink ◽  
Audrey Wansink
Keyword(s):  
Young Adults ◽  
Vegetable Intake ◽  
Fruit And Vegetable Intake ◽  
Guidance System ◽  
Diary Study ◽  
Fruit And Vegetable ◽  
Food Diary ◽  
Change Behavior ◽  
Guidance Systems ◽  
Meal Composition

Can visual plate-related dietary guidance systems -- such as the MyPlate guideline or the Half-Plate Rule -- help people eat better when dining at home or in restaurants? To help explore this, 104 young adults completed a food diary study after having been randomly assigned to follow either 1) USDA MyPlate guidelines, 2) the Half-Plate Rule, or 3) no guidelines (control condition). Both of the visual dietary guidance systems were considered easy to understand, to follow, and left people with fewer questions about what to eat (all p<.01). Moreover, people who rated a system "easy to follow" indicated they had consumed less (meat (r = .268), but this was uncorrelated with fruit and vegetable intake (r =.092) and carbohydrate intake (r = .069). There are three key conclusions to these and other findings: First, the simplest guidance system may be more effective than no system. Second, even the most perfect dietary guidance system will not change behavior if the foods are not available or it is not followed. Third, guidance systems could over-increase the consumption of any food they specifically mention.

scholarly journals Stages of Change for Increasing Fruit and Vegetable Intake in a Japanese Population

2019 ◽  
Vol 11 (7) ◽  
pp. 139
Author(s):  
Da-Hong Wang ◽  
Michiko Kogashiwa ◽  
Naoko Mori ◽  
Shikibu Yamashita ◽  
Wakako Fujii ◽  
...  
Keyword(s):  
Stages Of Change ◽  
Self Efficacy ◽  
Vegetable Intake ◽  
Linear Trend ◽  
Cross Sectional Study ◽  
Fruit And Vegetable Intake ◽  
Fruit Intake ◽  
Fruit And Vegetable ◽  
Cross Sectional ◽  
Maintenance Stage

OBJECTIVE: Thhis study aimed to investigate the reason why people choose to consume less vegetable and fruit through examining how the stage of change and psycho-social parameters relate to vegetable and fruit intake. METHODS: We carried out a cross-sectional study in 4 regions of Japan in which 2308 individuals (1012 men and 1296 women) aged 18 years or older who completed the questionnaires were included in the study. RESULTS: The results showed 56% of the participants were in the precontemplation stage (not thinking about consuming recommended amount of fruit and vegetable) and their average amounts of vegetable and fruit intake were far below the level of current recommendations, and subjects in the precontemplation stage showed lower scores of attitude and self efficacy. Men were more likely to be in precontemplation (67.7%) and less likely to be in action/maintenance stage (7.9%) than women (46.9%, 12.1%, respectively) (p &lt; 0.001). We also observed the scores of attitude (p = 0.06) and self-efficacy (p &lt; 0.01) rose as the stage went up from the precontemplation to action/maintenance for increasing vegetable and fruit intake. Moreover, a linear trend was found toward higher vegetable (p &lt; 0.05) and fruit (p = 0.121) intake from precontemplation to action/maintenance stage. CONCLUSION: The present evidence suggests more attention should be focused on strategy for perceptions of personal need for recommended amount of vegetable and fruit intake for those who are in the precontemplation stage. Moreover, effective programs on enhancement of self-efficacy and attitude toward vegetable and fruit consumption are needed for increasing the vegetable and fruit intake.

scholarly journals Comparison of two frequency questionnaires for quantifying fruit and vegetable intake

2001 ◽  
Vol 4 (2) ◽  
pp. 233-239 ◽  
Author(s):  
Soumela Amanatidis ◽  
Dorothy Mackerras ◽  
Judy M Simpson
Keyword(s):  
Vegetable Intake ◽  
Vegetable Consumption ◽  
Beta Carotene ◽  
Fruit And Vegetable Intake ◽  
Fruit And Vegetable ◽  
Seasonal Differences ◽  
Food Frequency ◽  
The Family ◽  
Study Population ◽  
Colposcopy Clinic

AbstractObjectiveThe effect on individual rankings and total intakes of nutrients of correcting total fruit and vegetable frequencies from a long food frequency questionnaire (FFQ) using the responses to two summary questions was examined in a group of women.MethodsThe performance of a self-administered FFQ in ranking individual levels of intake and estimating absolute levels of nutrient and energy intake was compared with the performance of the questionnaire when it was corrected for fruit and vegetable intake reported using the Block summary questions.SubjectsThe study population included 123 women, aged between 18 and 54 years, who were recruited from the Family Planning Association Colposcopy Clinic in Sydney.ResultsSubstantial and significant differences (P<0.001) were found in fruit and vegetable intakes between the FFQ and the summary questions. Intake frequency by the FFQ was more than double that by the summary questions. When the FFQ was corrected for fruit and vegetable intakes using the summary questions, the intakes of beta-carotene, vitamins A and C, and dietary fibre were more than 20% lower (P<0.001) than the uncorrected results. However, this had little effect on ranking individuals. This study also examined seasonal differences in vegetable intakes and differences in nutrient intakes when either summer or winter vegetable consumption was substituted for seasonal vegetable intake in the FFQ. Although there were seasonal differences for some foods, the substitution had little effect on intake of nutrients.ConclusionThese results indicate that important differences in intakes are observed when two methods, which appear to yield the same results, are used. Further work is needed to determine which, if either, of the two methods yields intakes that can be compared quantitatively with national references for assessing the adequacy of population intakes.

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