The aim of this study is to investigate the effects of I-Fiber Pearl on Body Weight and Body Fat in Obese Adults.

This randomized, double-blinded,placebo-controlled clinical trial will be conduct for 12 weeks with fifty adults. Subjects will be recruited and randomly assigned into two groups: (1) placebo, n = 25; (2) I-Fiber Pearl, n=25. During the 12 weeks intervention, the subjects should take 200g placebo or 200g I-Fiber Pearl a day . The two pearl are supplied in plastic packages, and both the products taste the same. Subjects also should complete the assessment of anthropometric measurement, intestinal questionnaire , food record, urine, feces and blood collection at week 0 and week 12.

Inclusion Criteria:

• female
• aged 20-50 years old
• body mass index is greater than or equal to 27 kg/m2
• waist greater than or equal to 80 cm

Exclusion Criteria:

• Subjects diagnosed with cancer and on curative care.
• Subjects diagnosed with heart disease and on curative care.
• Subjects who use other drugs whose pharmacological effects may affect the experiment or may aggravate the effects of the drug.
• Subjects with systemic infection requiring antibiotics.