Meta AnalysisID 314
亚洲文化中苦味蔬菜摄入与儿童体重状况及代谢特征的相关性：一项系统评价
CRD42022341431
The review objective is to synthesise the best available evidence on the association between consumption of bitter-taste vegetables in Asian culture and weight status and metabolic profile in children. The two review que
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- Meta Analysis Id
- 314
- Evidence Id
- 8872
- Core Evidence Id
- 8872
- Source Meta Analysis Id
- 294
- Herb2 Meta Analysis Id
- HBMA000294
- Crd Id
- CRD42022341431
- Title
- The association between consumption of bitter-taste vegetables available in Asian culture and weight status and metabolic profile in children: a systematic review
- Review Question
- The review objective is to synthesise the best available evidence on the association between consumption of bitter-taste vegetables in Asian culture and weight status and metabolic profile in children. The two review questions to be answered are: • First key question: Is there an association between consumption of bitter-taste vegetables available in Asian culture and weight status in children? • Second key question: Is there an association between consumption of bitter-taste vegetables available in Asian culture and metabolic profile in children? Further details provided in Attachment 1: Table 1: PICO framework define the research question for the systematic review.
- Study Type Included
- • Inclusion: There are no restrictions on the study design. • Exclusion: Unpublished reports, dissertations, systematic/narrative/scoping reviews, letters-to-the-editors, editorials, commentaries, and case studies.
- Condition Being Studied
- Sensitivity to bitter taste is the best-known example of taste variability that has broad implications for taste perception, food preferences and dietary behaviour, with subsequent impacts on nutritional status and health outcome. [1] Based on 6-n-propylthiouracil (PROP) and phenylthiocarbamide sensitivity, individuals can be classified in three PROP taster categories: non-tasters (who are taste-blind to the PROP), medium tasters, and PROP super-tasters (who perceive extreme bitterness when tasting PROP). [2] It has been proposed that those individuals identified as super-tasters are more responsive to other taste qualities including fats [3] and that PROP tasting is associated with variations in food acceptability, selection of vegetables and fruits, and several health parameters [4-6]. A recent study amongst 156 Caucasians and 67 Asians aged 18–65 years in UK reported a higher proportion of Asians were super-tasters as compared to Caucasians (55% vs. 24%, p < 0.01). [7] A pilot study among Malay children aged 7 to 12 years in Kuala Lumpur found no difference between normal and obese children in taste sensitivity and preferences. [8] Comparatively, there are more varieties of bitter-taste vegetables used in Asian than in European cuisine, however, their impact on children’s weight status and metabolic profile is still relatively limited.
- Participant
- Inclusions: • As per WHO’s definition of childhood, studies examining children aged <18 years[1]. • Studies published in English with no restrictions on publication dates, type of study design, gender and study country. • Reporting at least one quantitative analysis between bitter-taste vegetables and weight status or metabolic profile. • Studies examining bitter-taste vegetables either as an independent or dependent variable. Exclusions: • Studies with children having chronic diseases, developmental disability, autism spectrum disorder or any other cognitive or intellectual impairment and sensory-based feeding difficulties (e.g., dysphagia). • Studies done exclusively on adults or animals. • Studies not published in English. • Unpublished reports, dissertations, narrative/scoping reviews, letters-to-the-editors, editorials, commentaries, and case studies. References: 1. World Health Organisation. WHO definition of key terms.; 2013.
- Animal
- Human Disease Modelled
- Intervention
- • There are no restrictions on the study design. • Bitter vegetables available in Asian culture: 1. Brassica vegetables: cabbage, broccoli (Brassica oleracea convar. botrytis var. cymosa) (commonly Brassica oleracea ssp. italica), cauliflower (Brassica oleracea convar. botrytis var. botrytis) 2. Chinese Brassica campestris vegetables: Chinese cabbage (B. rapa ssp. pekinensis), purple cai-tai (B. chinensis var. purpurea), choysum (B. chinensis var. utilis), and pakchoi (B. chinensis var. communis), Turnips (B. rapa var. rapifera), radishes (Raphanus sativus), Chinese Kale (Brassica oleracea var. alboglabra), Mustard Greens (Brassica juncea) 3. Others: Moringa or Drumstick Tree (Moringa oleifera), Bitter gourd • Tasters are predominantly classified as non-tasters (who are taste-blind to the bitter taste), medium tasters, and super-tasters (who perceive extreme bitterness when tasting bitter-taste, based on previously validated questionnaires or study developed item/s (taste strips, bitter compound) • Bitter tasters are predominantly examined as the intervention group in RCT’s and quazi-experimental designs. • Bitter tasters are predominantly examined as the exposure group in prospective cohort designs
- Comparator Control
- • There are no restrictions on the study design. • Non-bitter tasters are predominantly examined as the control group in RCT’s and quazi-experimental designs. • Non-bitter tasters are predominantly examined as the comparative group in prospective cohort designs. • Participants are classified as non-bitter tasters based on previously validated questionnaires or study-developed items.
- Main Outcome
- • There are no restrictions on the study design. • Bitter-taste vegetables are predominantly examined as the independent variable in cross-sectional studies. • Weight status and metabolic profiles are predominantly examined as the dependent variable in cross-sectional studies. Measures of effect • There are no restrictions on the study design. • Therefore, multiple effect size (e.g., mean, β, r, odds ratio) and variance (e.g., standard deviation, 95% CI, standard error) estimates are reported in the original articles. • For the purpose of undertaking the meta-analysis, studies which report sufficient details, the effect size will be computed as Cohen’s d values and variance.
- Outcome Measure
- Additional Outcome
- Not applicable Measures of effect Not applicable
- Study Method
- Systematic review
- Keyword
- Child; Food Preferences; Humans; Metabolome; Taste; Taste Perception; Vegetables
- Contact
- Wai Yew Yang [email protected]
- Organisational Affiliation
- International Medical University https://www.imu.edu.my/
- Funding Source
- Not Applicable Grant number(s) <span style=font-size: 14px>State the funder, grant or award number and the date of award</span> None
- Other Selection Criteria
- Final Publication
- Same Topic Review
- Not applicable
- Published Protocol
- Review Type
- Language
- English
- Country
- Australia, Malaysia
- Review Stage
- Review Ongoing
- First Submission Date
- 2022-06-22
- Registration Date
- 2022-07-02
- Anticipated Start Date
- 2022-06-22
- Anticipated Completion Date
- 2022-11-01
- Title Cn
- 亚洲文化中苦味蔬菜摄入与儿童体重状况及代谢特征的相关性：一项系统评价
- Title En
- The association between consumption of bitter-taste vegetables available in Asian culture and weight status and metabolic profile in children: a systematic review
- Bilingual Status
- complete