Randomized, Placebo-controlled, Clinical Study to Investigate the Anti-Metabolic Syndrome Effect of the Functional Food in humans

INTERVENTION: The subjects take the test food(rice) during 12 weeks (non‐holiday). The subjects take the test food(Japanese tea) during 12 weeks (non‐holiday). The subjects take the test food(Side dish) during 12 weeks (non‐holiday). The subjects take the test food(rice,Japanese tea,Side dish) during 12 weeks (non‐holiday). CONDITION: Obesity PRIMARY OUTCOME: Visceral fat area; After the administration after 6 weeks, the start of administration after 12 weeks INCLUSION CRITERIA: 1) Aged 20‐65 years at informed consent 2) Visceral fat area >=100cm2 for male, >=80cm2 for female 3) Body‐mass index (BMI) 25‐30 kg/m2 for male, 23‐30 kg/m2 for female 4)Fasting blood glucose =<125mg/dL 5) Obtained written informed consent from the subjects for the study participation