A fat-and-oil containing composition which contains at least (A) an oil component, (B) glycerin, and (C) an emulsifier, the composition containing: a glycerin fatty acid ester, in which from 30% by mass to 75% by mass of constituent fatty acids are docosahexaenoic acid, as (A) the oil component; and a decaglycerin fatty acid ester, in which constituent fatty acids are oleic acid, as (C) the emulsifier, wherein respective content ratios of (A) the oil component, (B) the glycerin and (C) the emulsifier are within the following ranges relative to the total mass of (A) the oil component, (B) the glycerin and (C) the emulsifier: (A) the oil component: from 55% by mass to 78% by mass, (B) the glycerin: from 10% by mass to 35% by mass, and (C) the emulsifier: from 5% by mass to 13% by mass.