A new randomized trial tested a ketogenic diet in people with treatment-resistant depression. Both groups improved quickly. But after 6 weeks, the ketogenic diet group improved slightly more than the control diet group.
Important nuance: the benefit was modest, not dramatic. There were no clear differences in most secondary outcomeslike anxiety, cognition, or functioning. And once the intensive support stopped, very few people kept following the diet.
So the honest takeaway is this:
A ketogenic diet may help some people with treatment-resistant depression as an adjunct, but this is not a miracle intervention. It appears demanding, hard to sustain, and probably not realistic without strong structure and support.
This is how mental health usually works: not one magic lever, but a system. Biology matters. Nutrition matters. Adherence matters. Context matters.
Question for the group:
Do you think highly structured interventions help because of the biology itself, or because structure, attention, and hope already change the system?