Department of Family Medicine, Seoul National University Hospital, 101 Daehakro, Yeongun-dong, Jongno-gu, Seoul 03080, Republic of Korea.
Department of Preventive Medicine, Seoul National University College of Medicine, 103 Daehakro, Yeongun-dong, Jongno-gu, Seoul 03080, Republic of Korea.
Nutrients. 2024 Aug 6;16(16):2583. doi: 10.3390/nu16162583.
The effect of dietary fiber intake on mental health is controversial. This study aimed to examine the association of fiber intake with mental health in Korean adults. This cross-sectional study included 11,288 participants aged ≥40 years who participated in the Korean Genome and Epidemiology Study (2004-2013). Fiber intake was assessed using a food frequency questionnaire and categorized into sex-specific quintiles. Multiple logistic regression models were used to investigate the association between the lowest quintile of fiber intake and poor mental health. Mental health was assessed using acute stress perception, the Psychosocial Well-Being Index-Short Form, self-rated health, and the Center for Epidemiological Studies-Depression Scale in Korea. Compared to those with higher fiber intake, having the lowest quintile of fiber intake was associated with higher odds of poor mental health risk, a higher risk of high-stress perception, poor psychosocial distress in males, poor psychosocial distress, and depression in females. Low fiber intake had profound negative mental health effects on males with high total energy intake and females with low total energy intake. In conclusion, there is a gender difference in the impact of total energy intake on the deleterious effect of low fiber intake on mental health.
膳食纤维摄入量对心理健康的影响存在争议。本研究旨在探讨成年人膳食纤维摄入量与心理健康之间的关系。本横断面研究纳入了 11288 名年龄≥40 岁的韩国人，他们参加了韩国基因组与流行病学研究（2004-2013 年）。膳食纤维摄入量通过食物频率问卷进行评估，并分为特定性别五分位数。使用多因素逻辑回归模型来研究最低膳食纤维摄入量五分位数与心理健康不良之间的关系。心理健康通过急性应激感知、心理社会幸福感量表-短表、自我评估健康状况和韩国流行病学研究中心抑郁量表进行评估。与膳食纤维摄入量较高者相比，膳食纤维摄入量最低的五分位数与心理健康不良风险的比值更高，男性高应激感知风险更高，男性心理社会痛苦程度更高，女性心理社会痛苦程度和抑郁程度更高。高总能量摄入的男性和低总能量摄入的女性中，低膳食纤维摄入对心理健康有深远的负面影响。总之，总能量摄入对低膳食纤维摄入对心理健康的有害影响存在性别差异。
