Ketogenic Diet Intervention on Metabolic and Psychiatric Health in Bipolar and Schizophrenia: A Pilot Trial.

Journal: Psychiatry research

Volume: 335

Issue: 

Year of Publication: 

Affiliated Institutions:  Metabolic Psychiatry, Dept. of Psychiatry and Behavioral Sciences, Stanford Medicine, Stanford, CA, USA. Electronic address: shebanis@stanford.edu. Metabolic Psychiatry, Dept. of Psychiatry and Behavioral Sciences, Stanford Medicine, Stanford, CA, USA. Department of Health Behavior and Biological Sciences, School of Nursing, University of Michigan, Ann Arbor, MI, USA. Department of Medicine, Duke University Medical Center, Durham, NC, USA. Department of Pediatrics and Medicine, University of California-San Francisco, San Francisco, CA, USA.

Abstract summary 

The ketogenic diet (KD, also known as metabolic therapy) has been successful in the treatment of obesity, type 2 diabetes, and epilepsy. More recently, this treatment has shown promise in the treatment of psychiatric illness. We conducted a 4-month pilot study to investigate the effects of a KD on individuals with schizophrenia or bipolar disorder with existing metabolic abnormalities. Twenty-three participants were enrolled in a single-arm trial. Results showcased improvements in metabolic health, with no participants meeting metabolic syndrome criteria by study conclusion. Adherent individuals experienced significant reduction in weight (12 %), BMI (12 %), waist circumference (13 %), and visceral adipose tissue (36 %). Observed biomarker enhancements in this population include a 27 % decrease in HOMA-IR, and a 25 % drop in triglyceride levels. In psychiatric measurements, participants with schizophrenia showed a 32 % reduction in Brief Psychiatric Rating Scale scores. Overall Clinical Global Impression (CGI) severity improved by an average of 31 %, and the proportion of participants that started with elevated symptomatology improved at least 1-point on CGI (79 %). Psychiatric outcomes across the cohort encompassed increased life satisfaction (17 %) and enhanced sleep quality (19 %). This pilot trial underscores the potential advantages of adjunctive ketogenic dietary treatment in individuals grappling with serious mental illness.

Authors & Co-authors:  Sethi Wakeham Ketter Hooshmand Bjornstad Richards Westman Krauss Saslow

Study Outcome 

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Statistics
Citations : 
Authors :  9
Identifiers
Doi : 10.1016/j.psychres.2024.115866
SSN : 1872-7123
Study Population
Male,Female
Mesh Terms
Other Terms
Bipolar illness;Clinical trial;Insulin resistance;Ketogenic diet metabolic therapy;Mental health;Metabolic psychiatry;Metabolic syndrome;Obesity;Psychiatric disease;Schizoaffective disorder
Study Design
Study Approach
Country of Study
Mali
Publication Country
Ireland