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This document is an addendum to the "Flagship 2: Sustaining small-scale fisheries" contained in the FISH: CGIAR Research Program on Fish Agrifood Systems: Proposal (http://www.worldfishcenter.org/resource_centre/CRP-FISH-Proposal.pdf)
Reorienting food systems towards improving nutrition outcomes is vital if the global goal of ending all forms of malnutrition is to be achieved. Crucial to transitioning to nutrition-sensitive agriculture is valuing and measuring nutritional quality of the outputs of agricultural production. We review existing indicators which capture an element of nutritional quality applicable to different stages of the food and nutrition system.
Discovered in the late 1920s, 3,4-didehydroretinol (DROL, vitamin A2) plays a significant biological role in freshwater fish. The functions of this vitamin have been investigated but to a far lesser extent than those of retinol (ROL, vitamin A1). A recent study indicating all-trans DROL has 119–127% vitamin A biological activity compared to that of all-trans ROL suggests the significance of DROL for addressing vitamin A deficiency (VAD) in comparison to ROL may be currently overlooked.