Ketogenic diet and anorexia nervosa

Area of Science:

• Biochemistry
• Neuroscience
• Metabolic disorders

Background:

• Anorexia nervosa (AN) is associated with significant metabolic and psychological distress.
• Starvation in AN leads to profound biochemical changes, including altered brain fuel utilization.
• The anxiolytic and rewarding effects of starvation are not fully understood.

Purpose of the Study:

• To hypothesize that starvation-induced ketosis is anxiolytic and rewarding in AN.
• To propose a dietary intervention that mimics starvation's benefits without its harms.

Main Methods:

• Hypothetical review of biochemical pathways.
• Proposal of a ketogenic diet (KGD) as a therapeutic strategy.
• Comparison of KGD to starvation-induced ketosis.

Main Results:

• Ketosis, a metabolic state of using fat for fuel, is proposed as the key mechanism for anxiolysis and reward.
• A high-fat, moderate-protein, very-low-carbohydrate ketogenic diet can replicate starvation-induced ketosis.
• This dietary approach may offer the therapeutic benefits of ketosis while mitigating starvation-related morbidity.

Conclusions:

• Ketosis is hypothesized to be a primary driver of the anxiolytic and rewarding effects observed during starvation in AN.
• The ketogenic diet presents a viable strategy to induce ketosis for potential therapeutic benefit in AN.
• Further research is warranted to investigate the clinical efficacy of the ketogenic diet in managing AN.