The following is a list of resources for your own further research, if needed. It is not comprehensive and not all of the content on these websites is fully endorsed.
The Society of Metabolic Health Practitioners
Metabolic Psychiatry at Stanford University
The Weston A. Price Foundation
Nutritional Psychiatry at Harvard University
The Secrets of Nutritional Psychiatry
Nutritional Psychiatry: Gut-Brain Connection
Diet Doctor: Low-carb and keto Meal Planning