Department of Psychiatry, Taiwan Adventist Hospital, Taipei, Taiwan. School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan. Department of Psychiatry, Shuang Ho Hospital, New Taipei City, Taiwan. Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan. Research Center of Geriatric Nutrition, College of Nutrition, Taipei Medical University, Taipei, Taiwan. Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan.