Abstract：
Associations between fruit and vegetable (FV) consumption and mental health are suggested, largely from observational studies. This systematic review aimed to identify and summarise all published controlled intervention studies investigating the effects of FV consumption on mental health in adults. Four academic databases (Medline, PsycINFO, PubMed, Web of Science) were searched on 16 September 2022, over all years, for studies that used an intervention design; included FV consumption; included an appropriate non-FV-consumption control; used a validated measure of mental health and were conducted in healthy adults or adults with solely a depressive or anxiety-related condition. Study details were tabulated and combined using meta-analyses. Risk of bias was assessed using the domains of the Cochrane Collaboration. Six studies, enrolling 691 healthy adults and reporting on one or more mental health outcomes, were found. Meta-analyses found small and imprecise effects of FV consumption for: psychological well-being (4 studies, 289 participants) standardised mean difference (SMD) = 0·07 (95 % CI -0·17, 0·30), P = 0·58, I2 = 0 %; depressive symptomology (3 studies, 271 participants) SMD = -0·15 (95 % CI -0·40, 0·10), P = 0·23, I2 = 47 % and anxiety-related symptomology (4 studies, 298 participants) SMD = -0·15 (95 % CI -0·39, 0·08), P = 0·20, I2 = 71 %. Some benefit for psychological well-being was found in change-from-baseline data: SMD = 0·28 (95 % CI 0·05, 0·52), P = 0·02, I2 = 0 %. Risk of bias was high in many studies. Limitations include the consideration only of published studies and stem from the studies found. Given the few, limited studies available and the small size of effects, stronger evidence is needed before recommending FV consumption for mental health.
摘要：
建议水果和蔬菜（FV）消费与心理健康之间的关系，主要来自观察性研究。本系统综述旨在确定和总结所有已发表的对照干预研究，这些研究调查了FV消费对成年人心理健康的影响。四个学术数据库(Medline，PsycINFO,PubMed,WebofScience）在2022年9月16日进行了搜索，对于使用干预设计的研究;包括FV消耗;包括适当的非FV消耗控制;使用了经过验证的心理健康测量,并在健康成人或仅患有抑郁或焦虑相关疾病的成人中进行.使用荟萃分析对研究细节进行列表和组合。使用Cochrane协作的领域评估偏倚风险。六项研究,招募691名健康成年人，并报告一个或多个心理健康结果，被发现了。荟萃分析发现FV消费对心理健康的影响小而不精确(4项研究，289名参与者)标准化平均差(SMD)=0·07(95%CI-0·17，0·30)，P=0·58，I2=0%；抑郁症状(3项研究，271名参与者)SMD=-0·15(95%CI-0·40，0·10)，P=0.23，I2=47%和焦虑相关症状学(4项研究，298名参与者)SMD=-0·15(95%CI-0·39，0·08)，P=0·20,I2=71%。从基线数据的变化中发现了对心理健康的一些益处：SMD=0·28(95%CI0·05，0·52)，P=0·02,I2=0%。在许多研究中，偏倚的风险很高。局限性包括仅考虑已发表的研究，并且源于发现的研究。鉴于少数人，可用的研究有限，影响小，在推荐FV用于心理健康之前，需要更强有力的证据。
