In the first step of the solution GP Fish seeks to provide evidence about the role of fish in addressing malnutrition and supporting healthy diets, particularly for food insecure households. It is directed to professionals working in the field of food and nutrition security as well as rural development and investigates questions like “Does fish feed the poor, or is it too expensive?” By combining scientific insights with hands-on data from years of field experience, supplemented by practical examples, it aims to provide a broad overview of the current state in selected countries and a path forward.
Malnutrition is the most important aspect of food and nutrition insecurity and comes in many forms: undernutrition, overnutrition, and micronutrient deficiencies, often referred to as “hidden hunger”. The latter represents a major public health concern and results from inadequate intake of nutrients, such as iron, zinc, calcium, iodine, folate, and different vitamins. Strategies to combat micronutrient deficiencies include supplementation, (agronomic) biofortification, and most importantly diet diversification, which is the focus of contemporary policy discourses concerning the improvement of human nutrition. Diversifying diets by consuming animal proteins can significantly prevent micronutrient deficiencies, especially in low-income food-deficit countries, where diets are predominantly carbohydrate-based. Fish is a highly nutritious food that provides proteins, essential fatty acids, and micronutrients, as shown in Figure 1, to the point that it is sometimes referred to as a “superfood”. Due to its nutritional properties, even small quantities of fish can make important contributions to food and nutrition security. This is particularly true for small fish species that are consumed whole – including bones, heads, and guts –in regions where nutritional deficiencies and reliance on blue foods are high.
Figure 2 shows the share of recommended nutrient intake when consuming aquatic vs. terrestrial foods. Food sources are arranged from highest (top) to lowest (bottom) nutrient density. Visibly, aquatic “blue” foods like fish and mussels, are richer in nutrients compared to terrestrial sources. They are specifically good sources for Omega-3 fatty acids and Vitamin B12. Therefore, “blue foods” not only offer a remarkable opportunity for transforming our food systems but also contribute to tackling malnutrition.