Oils and fats containing 10 to 80 mass% of 1,3-distearoyl-2-oleoylglycerol (SOS) and including a triple chain length ²-type SOS crystal are provided. In the measurement of the X-ray diffraction of the triple chain length ²-type SOS crystal, the diffraction peak A corresponding to spacing of 3.95 to 4.05 Å, the diffraction peak B corresponding to spacing of 3.80 to 3.95 Å, the diffraction peak C corresponding to spacing of 3.70 to 3.80 Å, and the diffraction peak D corresponding to spacing of 3.60 to 3.70 Å are observed. The ratio of the diffraction intensity of the diffraction peak C to the diffraction intensity of the diffraction peak D is 0.35 or less.本發明提供一種含有10~80質量%之1,3-二硬脂醯基-2-油醯基丙三醇(SOS)，且含有3鏈長β型SOS結晶之油脂。該3鏈長β型SOS結晶之X射線繞射測定中，觀測到對應於3.95~4.05Å之面間隔之繞射波峰A、對應於3.80~3.95Å之面間隔之繞射波峰B、對應於3.70~3.80Å之面間隔之繞射波峰C、及對應於3.60~3.70Å之面間隔之繞射波峰D。且，繞射波峰C之繞射強度相對於繞射波峰D之繞射強度之比例為0.35以下。
