[Problem] To provide an oral composition that uses a body fat accumulation inhibitory function and/or a total cholesterol increase inhibitory function of a natural plant body, in other words, a plant body in which a rare sugar D-allulose and a rare sugar alcohol allitol, which are produced only in very small amounts in nature, are produced and contained within the plant body. [Solution] This body fat accumulation inhibitory agent or total cholesterol increase inhibitory agent is characterized by containing, as an active ingredient, a plant body containing a rare sugar D-allulose and a rare sugar alcohol allitol, which are produced only in very small amounts in nature, within the plant body, or an extract from the plant body.