Fish offer billions of people with an easily available supply of essential micronutrients such as iron, zinc, and vitamin A, emphasizing the potential for fisheries to contribute to malnutrition alleviation. Climate change and overfishing, according to the research that looked at over 800 fish species from 157 nations, may lead to severe shortages of critical micronutrients from the seas. Sub-Saharan African countries such as Mozambique and Sierra Leone have increasing danger to their fisheries. The research emphasizes the need of integrating fisheries, climate, and food policy to ensure the long-term contribution of fish-derived micronutrients to food and nutrition security.