The invention relates to an optimized nutrient salt composition comprising elemental sodium and potassium in the ratio of 1:1.5 to 1:7 preferably 1:3 and elemental potassium to chloride in the ratio of 1:1 to 1:1.5 and method of preparing the same. Said composition can be optionally added with a) salts of calcium and, or magnesium as taste stabilizers, b) carbohydrate like polysaccharide, oligosaccharide, disaccharide, monosaccharide to produce energy electrolyte powder, c) food additives selected from anti-caking agents, crystal modifying agents, flavoring agents, flavor modifying agents,coloring agents and or any other food additives and d) nutrients selected from proteins, amino acids, carbohydrates, sugars, fat/oil, fatty acids, vitamins, minerals and water. Said optimized nutrient salt composition can be used as food, food ingredient, food supplement, table salt, preservative, food additive, seasoning agent and ingredient for oral rehydration fluid, intravenous fluids,beverages, energy drinks, sports/study drinks and stimulant drinks for humans, pets and livestock and for plant nutrition.