[Problem] To provide a metabolic syndrome inhibitor which can inhibit the accumulation of visceral fat and body fat to thereby ameliorate or prevent metabolic syndrome.[Solution] The metabolic syndrome inhibitor according to the present invention comprises soybean hypocotyl oil as an active ingredient. In particular, the metabolic syndrome inhibitor serves as a body fat accumulation inhibitor and/or a blood neutral fat increase inhibitor. In particular, the body fat accumulation inhibitor serves as a visceral fat accumulation inhibitor.
