To qualify, participants must meet the following criteria (Additional Criteria Apply):
Be between the ages of 18-65
Have a BMI between 18 and 32
Have a minimum weight of 50 kg (110 lbs)
Born in Japan and all four grandparents must be Japanese OR born in Mainland China, Hong Kong, Macau or Taiwan and all four grandparents must be Chinese
Must be living a Japanese OR Chinese lifestyle
Available to remain inpatient for 8 nights