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Completed

NCT Number: NCT02626988

The Role of Agricultural Biodiversity in The Diet: a Vietnamese Study

What is the role of Agricultural biodiversity in improving diet diversity, quality and nutrition?

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Key information

Conditions

Food Intake Biodiversity

Age range

12 month–55 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Jessica E Raneri

Mai Sơn, Sơn La Province, 2136, Vietnam

About this study

Agricultural biodiversity can have an important role in improving diet diversity, quality and nutrition and can be seen as the foundation of the food and nutrition value chain.

Increasing the availability and access to local agricultural and/or wild biodiversity genetic resources has the potential to increase production, making more food available for consumption as long as entitlements to access it exist. However, as the history of food security interventions has shown, increasing the production and supply of staple crops alone is not enough to improve food security or nutritional status. However, while agricultural diversification is an important component, it is not alone sufficient to improve diet diversity. Other system elements including women's education and knowledge, intra-household dynamics and women's status and cultural beliefs and practices that improves children's health and nutrition are important to ensure biodiversity has a successful role in improving dietary diversity and quality.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Woman of reproductive age (between 15-49 years) who are the mother or primary caregiver of a child between 12 and 23 months of age.
  • Both the woman and the child should be permanent residents in the village selected and do not temporarily migrate outside the village cluster during the year.
  • Reside in a Thai Village

Exclusion criteria

  • Reside in a village that is the Urban center of commune/province
  • Currently engaged in other agriculture or nutrition programme or Intervention apart from what is offered by government extension workers

Treatment and study plan

Promotion of a biodiverse diet

Behavioral

Nutrition education combined with Agriculture Capacity building focused on a key set of nutritious crops. Component (C) 1 - Participatory Identification of Intervention Approach (PIIA); C2 - Local stakeholder consultation; C3 - Sensitisation of community; C4 - Formation of Diversity club. Club will receive capacity building from a Village health worker. The following topics will be covered species selected for promotion: 1. Where to locally source inputs and expected price, 2. How/when to prepare plots using organic inputs, 3. Planting and best-practice management practices, 4. Seed saving and storage and 4. Active Cooking demonstrations and Nutrition Education and counselling including Diversified cooking practices

Primary outcomes

  1. Mean intakes (g) of Dark Green leafy vegetables, Vitamin A Rich Fruit and Vegetable and Legumes, nuts and seeds

    Time frame: 12 months

    Mean intakes (g) of Dark Green leafy vegetables, Vitamin A Rich Fruit and Vegetable and Legumes, nuts and seeds by mothers and young children. Collected through administration of 24hour dietary recall

  2. Proportion of women and children consuming Dark Green leafy vegetables, Vitamin A Rich Fruit and Vegetable and Legumes, nuts and seeds by mothers and young children

    Time frame: 12 months

    Proportion of women and children consuming Dark Green leafy vegetables, Vitamin A Rich Fruit and Vegetable and Legumes, nuts and seeds by mothers and young children. Collected through administration of 24hour dietary recall

  3. Proportion of women and children reaching EAR of iron and vitamin A

    Time frame: 12 months

    Proportion of women and children reaching EAR of iron and vitamin A. Collected through administration of 24hour dietary recall

  4. Mean species richness consumed daily

    Time frame: 12 months

    Mean species richness consumed daily. Collected through administration of 24hour dietary recall

Secondary outcomes

  1. Proportion of women and children reaching EAR of 16 key nutrients

    Time frame: 12 months

    Proportion of women and children reaching EAR of 16 key nutrients. Collected through administration of 24hour dietary recall

  2. Nutritional Knowledge of Women, score

    Time frame: 12 months

    Nutrition Knowledge Score. Collected through a Questionnaire.

  3. Individual Dietary Diversity Score - Women - Score constructed of number of food groups consumed out of 10

    Time frame: 12 months

    Individual Dietary Diversity Score of women. Score constructed of number of food groups consumed out of 10. Collected through administration of 24hour dietary recall

  4. Individual Dietary Diversity Score - Children. Score constructed of count of number of food groups consumed out of 7

    Time frame: 12 months

    Individual Dietary Diversity Score children. Score constructed of count of number of food groups consumed out of 7.Collected through administration of 24hour dietary recall

  5. Minimum Dietary Diversity - Women - Proportion of women that consumed 5 or more food groups (out of 10).

    Time frame: 12 months

    Proportion of women that consumed 5 or more food groups (out of 10). Collected through administration of 24hour dietary recall

  6. Minimum Dietary Diversity - Children - Proportion of children that consumed 4 or more food groups (out of 7).

    Time frame: 12 months

    Proportion of children that consumed 4 or more food groups (out of 7). Collected through administration of 24hour dietary recall

  7. Child nutritional status - Wasting/Overweight - Mean change from baseline in weight-for-height Z-scores. The following measurements will be directly collected Height/Length (cm) and Weight (Kg)

    Time frame: 12 months

    Wasting/Overweight - Mean change from baseline in weight-for-height Z-scores. The following measurements will be directly collected Height/Length (cm) and Weight (Kg) and used to calculate the final indicator

  8. Child nutritional status - Stunting - Mean change from baseline in height-for-age Z-scores The following direct measurements will be collected Age (months), Height/Length (cm)

    Time frame: 12 months

    Stunting - Mean change from baseline in height-for-age Z-scores The following direct measurements will be collected Age (months), Height/Length (cm) and used to calculate the final indicator.

  9. Child nutritional status - Underweight - Mean change from baseline in weight-for-age Z-scores The following direct measurements will be collected Age (months) and Weight (Kg)

    Time frame: 12 months

    Underweight - Mean change from baseline in weight-for-age Z-scores The following direct measurements will be collected Age (months) and Weight (Kg) and used to calculate the final indicator

  10. Mean daily intakes (g) of processed foods and drinks

    Time frame: 12 months

    Mean daily intakes (g) of processed foods and drinks. Collected through administration of 24hour dietary recall

  11. Mean proportion of daily energy, fat, salt and sugar intakes from processed foods

    Time frame: 12 months

    Mean proportion of daily energy, fat, salt and sugar intakes from processed foods. Collected through administration of 24hour dietary recall

Sponsors and collaborators

Lead sponsor

Bioversity International

Other

Collaborators

  • Center for Agriculture and Ecological Studies
  • HealthBridge
  • University Ghent

Registry information

Important dates

Study start
2016
Primary completion
2017
Study completion
2017
First posted
Dec 10, 2015
Registry last updated
Aug 13, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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