Low Carb High Fat - Ketogenic

• Ketogenic nutrition entered this work because anorexia nervosa remains severe, deadly, and biologically hard to move with current care.
• Weight restoration is necessary, but it often leaves fears about eating, body shape, and weight intact or worse.
• The unresolved clinical problem is the persistent drive for weight loss after weight normalization and the high relapse risk after intensive care.
• Barbara Scolnick's niece's recovery with ketogenic nutrition and the later five-person pilot made this pathway worth testing.
• The working model is that ketogenic metabolism can affect brain energy, anxiety, and eating-disorder thoughts, not simply body weight.

Trial design and monitoring

• The trial enrolled 22 adults with prior underweight anorexia nervosa who were weight-normalized or mildly underweight at entry, and 18 completed.
• The design used a two-week ketogenic induction followed by 12 weeks of maintained ketosis.
• The diet target was 70% fat, 20% protein, and 10% carbohydrate, with blood ketones around 0.5 or higher.
• Participants met weekly with a dietitian and weekly with Guido Frank to track ketones, labs, symptoms, food logistics, and safety.
• The practical work included restaurants, family dynamics, friends, and the large mental shift from fear of fat to using fat deliberately.

Main results

• The main measures covered eating-disorder symptoms, depression, and related questionnaire scores from study entry through study end.
• Symptoms rose slightly early in weight concern because fat was the macronutrient most feared by many participants.
• Over time, eating-disorder scores and depression scores steadily fell.
• Study completers moved below the eating-disorder questionnaire cutoff, with the global score falling from about 4.1 to about 1.7.
• Compared with partial-hospital data moving from about 4.08 to about 3.09 at discharge, this change was unusually large.
• Seventy-two percent of completers had very large gains, with eating-disorder and depression scores in the normal range by the end.

Weight, safety, and non-response

• Weight was stable across the study, and the BMI graph was essentially flat week by week.
• A few participants entered near BMI 18, briefly dipped under the allowed boundary, added fats, and did not relapse.
• No participant relapsed into anorexia nervosa during the study.
• Five completers did not improve as strongly on eating-disorder thoughts and behaviors; two were flat and three improved modestly.
• Depression still improved in those weaker eating-disorder responders.
• Poor self-esteem emerged as the main hurdle for weaker response, so some patients need direct work on self-esteem and temperament as well.

Clinical experience and mechanism

• Many participants gained liberation from the constant cage of food, fat, shape, and next-meal fear.
• Participants had more mental space, more calm, more energy, and more ability to separate themselves from eating-disorder thoughts.
• The energy idea matters because anxious, perfectionistic patients may feel out of control when stress drains usable brain energy.
• Ketogenic nutrition may give a steadier energy source, reduce anxiety, and reduce the need to regain control through food restriction.
• Caroline Beckwith's earlier experience fit this pattern because the intrusive eating-disorder thoughts and voices went away.
• Some participants said they had their life back, which matters beyond a significant rating-scale change.

Controversy, implementation, and next studies

• The main pushback is that restrictive diets are often viewed as unsafe in anorexia nervosa, especially because keto is publicly tied to weight loss.
• Ketogenic nutrition is not automatically a weight-loss diet; in this trial it was weight-maintaining and supervised.
• The "all food is good food" premise should be open to data and not accepted as automatic truth for every person.
• Weight-normalized people with persistent shape, weight, and eating distress are the group with the clearest current fit.
• Underweight patients need a safety-first path with close monitoring, frequent labs, and more data before broad use.
• The next work includes PET brain-glucose studies before and after ketogenic nutrition, underweight recruitment, bulimia nervosa exploration, and randomized controlled trials.

References

• [00:34] Symptom impact and safety of ketogenic therapy in adults with anorexia nervosa: a feasibility trial — https://doi.org/10.1038/s43856-026-01644-0
• [03:44] Remission from Chronic Anorexia Nervosa With Ketogenic Diet and Ketamine: Case Report — https://doi.org/10.3389/fpsyt.2020.00763
• [04:04] Ketogenic diet and ketamine infusion treatment to target chronic persistent eating disorder psychopathology in anorexia nervosa: a pilot study — https://doi.org/10.1007/s40519-022-01455-x
• [04:50] Therapeutic ketogenic diet as treatment for anorexia nervosa — https://doi.org/10.3389/fnut.2024.1392135
• [13:04] Measuring Clinical Efficacy Through the Lens of Audit Data in Different Adult Eating Disorder Treatment Programmes — https://doi.org/10.3389/fpsyt.2020.599945
• [22:59] Ketogenic Diet and Brain Response in Anorexia Nervosa — https://clinicaltrials.ucsd.edu/trial/NCT06540703