The present invention aims to provide a novel composition for suppressing fat accumulation, a composition for suppressing weight gain, and a composition for promoting ketone body production. According to the present invention, it is possible to provide a composition for inhibiting fat accumulation, suppressing weight gain and / or promoting ketone body production, which comprises a medium-chain fatty acid glyceride as an active ingredient, and the medium-chain fatty acid glyceride contains a carbon number of 8 Saturated fatty acids are used as constituent fatty acids. The ratio of the amount of saturated fatty acids having a carbon number of 8 of the aforementioned medium-chain fatty acid glyceride to the total amount of medium-chain fatty acids may be set to 0.6 or more. The aforementioned medium-chain fatty acid glyceride may further contain a saturated fatty acid having a carbon number of 10 and / or a saturated fatty acid having a carbon number of 12 as a constituent fatty acid. The aforementioned medium-chain fatty acid glyceride is preferably medium-chain fatty acid triglyceride.本發明係以提供一種新穎的抑制脂肪蓄積之組成物、抑制體重增加之組成物及促進酮體生成之組成物為目的。根據本發明，可提供一種抑制脂肪蓄積、抑制體重增加及/或促進酮體生成之組成物，其包含中鏈脂肪酸甘油酯作為有效成分而成，該中鏈脂肪酸甘油酯係包含碳數8之飽和脂肪酸作為構成脂肪酸。前述中鏈脂肪酸甘油酯之碳數8之飽和脂肪酸量相對於中鏈脂肪酸總量的比率可定為0.6以上。前述中鏈脂肪酸甘油酯亦可進一步包含碳數10之飽和脂肪酸及/或碳數12之飽和脂肪酸作為構成脂肪酸。前述中鏈脂肪酸甘油酯較佳為中鏈脂肪酸三酸甘油酯。
