07/08/2026
The Head of the CIP Genebank, Maarten van Zonneveld, and the CGIAR Genebanks Director, Vรขnia Azevedo, are among the co-authors of a new paper: โReversing vegetable biodiversity loss to diversify dietsโ.
Published in PNAS, the paper highlights how conserving and using crop diversity is essential to diversifying diets and improving nutrition. It calls for a global effort to conserve vegetable biodiversity, harness it for crop improvement, promote healthier diets, and strengthen enabling policies through the Vegetables4Life initiative led by World Vegetable Center and Crop Trust.
The call for action comes at a critical time as a recent UN report warns that one in three people cannot afford a healthy diet. Vegetables are an essential component of healthy diets, yet on average, people consume nearly 40% fewer vegetables than recommended. The shortfall is even greater in lower-income countries.
At the same time, many vegetable varieties are disappearing from fields, and the conservation and use of vegetable genetic resources are insufficient.
The paper highlights four vegetables with high potential to help diversify diets. They are nutrient-dense, adapted to challenging growing conditions, and valued in local food cultures:
๐ท๏ธ Spider plant - a popular leafy green in parts of Africa
๐ฅ Bitter gourd - a climate-resilient vegetable prized across Asia and the Caribbean
๐ฅฌ Slippery cabbage - a leafy vegetable popular in the Pacific for its unique texture and reported health benefits
๐ Pumpkin - a vegetable that is native to the Americas, drought- and heat-tolerant, and rich in beta-carotene and other nutrients
The CGIAR Genebanks Accelerator and International Potato Center are contributing to this work by helping to develop a Vegetables4Life Roadmap for the Americas. The Roadmap is being developed with key partners across the region and sets out actions including conducting baseline surveys and targeted germplasm collection, strengthening and modernizing genebank infrastructure, and supporting community seedbanks.
โก๏ธ Read the full paper: https://www.pnas.org/doi/10.1073/pnas.2532063123
Congratulations to the other co-authors: Colin K. Khoury, Anna Herforth, Chris Vogliano, Cary Fowler, Sarah Gora, Sarada Krishnan, Logotonu Meleisea-Waqainabete, Sognigbe NโDanikou and M. Eric Schranz.
๐ธ Surath Machambire of WorldVeg checks seedlings at the organizationโs regional hub in Arusha. Pic by Neil Palmer (WorldVeg).