PURPOSE: A food composition for improving loudness and vital capacity is provided to relax muscle and to relieve chronic fatigue. CONSTITUTION: A food composition for improving loudness and vital capacity contains 45-75 weight parts of magnesium mixture, 25-55 weight parts of malic acid, 0.001-5 weight parts of crude drug extract, and 0.001-5 weight parts of vitamin B_6. The magnesium mixture contains 50-70 weight parts of magnesium sulfate and 10-20 weight parts of magnesium hydroxide. The crude drug extract contains 19.5 weight parts of Saururus Herba, 17.5 weight parts of Plantago formosana, 12.5 weight parts of Taraxaci Herba, 10.5 weight parts of Lonicerae Flos, 7.5 weight parts of green tea leaves, 7.5 weight parts of Glycyrrhizae radix, 7.5 weight parts of Portulaca oleracea L., and 4 weight parts of Panax notoginseng panax. A method for preparing the food composition comprises: a step of putting the ingredients containing magnesium mixture, malic acid, crude drug extract, and vitamin B_6 into a reaction tank(S101)； and a step of stirring and stabilizing(S103,S105).본 발명은 음량 및 폐활량 개선용 식품 조성물과 그 조성물의 제조방법에 관한 것으로, 더욱 상세하게는 마그네슘 혼합물, 사과산, 생약추출물 및 비타민 B6로 이루어져 가창력의 향상 및 증진을 도모할 뿐만 아니라, 뭉친 근육을 이완시켜 만성피로를 풀어주는 효과를 나타내는 음량 및 폐활량 개선용 식품 조성물과 그 제조방법에 관한 것이다.
