An object is to provide an acid milk beverage, which shows no precipitation or aggregation and reduced whey separation, and which has a refreshing texture, even in cases where the acid milk beverage has a low solids-not-fat concentration. An acid milk beverage characterized by containing an acid milk beverage base and a pectin having an intrinsic viscosity of 5.9 to 8.5, a degree of esterification of 74 to 80, and a calcium reactivity of 230 or less is provided.本發明係以提供即使為無脂乳固形物濃度低之酸性乳飲料,仍無沈澱、凝聚,排除乳清(wheyoff)少,清爽口感之酸性乳飲料為目的,提供含酸性乳飲料基料以及極限黏度為5.9~8.5,酯化度為74~80,鈣反應性為230以下之果膠為特徵之酸性乳飲料。
