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Completed

NCT Number: NCT05144919

Biodiversity in the Diet in Vietnam

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.

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Key information

Conditions

Biodiversity Food Intake Nutritional Status

Age range

6 month–23 month

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Mai Sơn, Sơn La Province, Vietnam

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • villages: Characterized as Thai village. Only Thai villages will be selected for the study as agriculture practices, diets, food preferences, language and cultures can change drastically between ethnic groups.
  • participants: i) 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. This age group is part of the critical 1000 day window for child development and marks the time when young children can potentially consume all foods from the household pot and consume a more diverse diet. As such, it is from this age group that biodiversity can have an effect on children's diets.

ii) 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.

Exclusion criteria

  • villages: Urban center of commune/province as these villages/cities do not have agriculture or home garden opportunities
  • participants: 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

Component 1 - Participatory Identification of Intervention Approach (PIIA) Component 2. Local stakeholder consultation Component 3. Sensitisation of community Diversity club will receive capacity building from a Village health worker based on the prioritised species selected in component 2.

The following topics will be covered for each species selected for promotion:

  • Where to locally source inputs and expected price
  • How/when to prepare plots using organic inputs
  • Planting and best-practice management practices
  • Seed saving and storage
  • Possible intercropping combinations OR ecosystem services provided Component 4. Active Cooking demonstrations and Nutrition Education and counselling: Diversified cooking practices

Primary outcomes

  1. Consumption of nutrient rich food groups

    Time frame: 24 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.

  2. Consumption of nutrient rich food groups

    Time frame: 24 months

    Proportion of women and children consuming 3 Dark Green leafy vegetables, Vitamin A Rich Fruit and Vegetable and Legumes, nuts and seeds by mothers and young children.

  3. dietary quality

    Time frame: 24 months

    Proportion of women and children reaching estimated average requirement (EAR) of iron and vitamin A

  4. Mean species richness consumed

    Time frame: 24 months

    Mean species richness consumed

Secondary outcomes

  1. Food and nutrient intake

    Time frame: 24 months

    Proportion of women and children reaching EAR of 16 key nutrients

  2. Nutritional Knowledge of Women

    Time frame: 24 months

    Mean score from a set of nutrient and food specific questions

  3. Individual Dietary Diversity Score

    Time frame: 24 months

    Individual Dietary Diversity Score by women and children

  4. Minimum Dietary Diversity

    Time frame: 24 months

    Proportion of women and children that consumed 5 or more food groups (out of 10)

  5. nutritional status

    Time frame: 24 months

    Mean change from baseline in height-for-age Z-scores Mean change from baseline in weight-for-height Z-scores

  6. Women's Empowerment

    Time frame: 24 months

    Decision making power on selection of species to cultivate, use at homestead and time spent

  7. Consumption of processed foods and drinks

    Time frame: 24 months

    Mean daily intakes (g) of processed foods and drinks Mean proportion of daily energy, fat, salt and sugar intakes from processed foods

  8. income

    Time frame: 24 months

    Household Income from sale of home garden species, agriculture, off-farm employment

Sponsors and collaborators

Lead sponsor

University Ghent

Other

Collaborators

  • HealthBridge

Registry information

Official study title

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

Important dates

Study start
2015
Primary completion
2016
Study completion
2017
First posted
Dec 3, 2021
Registry last updated
Dec 3, 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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