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The study aimed to address the pervasive issue of inadequate nutrition in Bangladesh by analyzing eight distinct fish species, a pivotal step toward developing fish powder as a promising dietary supplement for nutritional enhancement. Samples from the Mathabhanga River in Chuadanga were rigorously processed and oven-dried to assess their nutritional properties, focusing on proximate composition, mineral content, and amino acid profile. Among the studied fish species, C. reba demonstrated the highest energy content (198.56 Kcal/100 g, p < 0.001), with notably elevated crude protein content (16.99 g/100 g, p < 0.001) compared to all except N. notopterus. The mineral composition order in fish powders was Ca > P > Fe > Na > Mg. Leucine emerged as the predominant essential amino acid (EAA) (6.84 to 32.15 mg/g, p < 0.001) among the species. O. pabo exhibited notably higher total EAA (∑EAA) levels (124.30 mg/g, p < 0.05) compared to other species. P. ticto showed a significantly higher ratio of total essential and non-essential amino acid content (∑EAA/∑NEAA) (0.41, p < 0.05) compared to other species. These findings underscored the nutritional value of the studied fish species, advocating their utilization as a dietary supplement to address malnutrition in Bangladesh.

Since the nutritional makeup of many plants is still unknown, people have historically included them in their diets without even being aware of their health advantages. Therefore, the present study aimed to uncover the proximate composition, minerals, vitamins, amino acids, and fatty acids composition of two locally consumed vegetables, namely Boerhavia diffusa and Coccinia grandis. From the analysis, these vegetables had a significant protein, fat, and carbohydrate content. Regarding mineral contents, both plants had a great amount of potassium, calcium, iron, sodium, and zinc. These vegetables had a remarkable content of vitamins such as B1, B2, B3, B5, B6, and C. The leaves of both plants had important essential amino acids such as leucine, lysine, and phenylalanine, as well as non-essential amino acids. Unsaturated fatty acids such as linolenic acid, linoleic acid, and erucic acid were more prominent in Coccinia grandis than Boerhavia diffusa. In addition, both plants had a significant amount of saturated fatty acids such as palmitic acid, stearic acid, and lauric acid. Thus, it can be concluded that these two vegetables have magnificent profiles of nutrients which could make them as important sources of minerals, vitamins, and fatty acids.