Nutrition has a major impact in mental health.

The distinction between psychiatric and neurological disorders is evermore unclear.

Psychotropic drugs can modify Cerebral metabolism, though can’t rewire brain-circuits.
Brain metabolism is controlled by blood and oxygen flow.
No psychotropics target these two basic vital elements.
Current medication still targets neurotransmission only.

My impression is that research always overlaps the basics.
Scientists know that essential enzymes regulating metabolism are produced by blood-cells, so that a new field of research is developing, GBA, the Gut-Brain Axis.

GBA

GBA is deemed as a virtual Communication Network connecting the Brain with Gut-bacteria and the Endocrine System.

The Gut and Adrenal Glands are major manufacturers of Serotonin, Adrenaline and Dopamine, the 3 main cerebral neurotransmitters, yet the brain produces these chemicals independently.
However, 90% of Serotonin is produced in the Gut and it’s responsible either for Mood and Intestinal Functions.

Based on this assumption, we deduce that Adrenal Neurotransmitters send Signals to the brain.

Henceforth, there are two lines of thought defining GBA:

1. The Vagus Nerve connecting the brain with the gut directly.
2. The connection between the Hippocampus and Hypothalamus.

Both models work on Signals and Memory.
The Hypothalamus is the Feeding center, the Hippocampus the Memory Center.
This connection would remind us when to eat by regulating Metabolism and Mood.
The Vagus Nerve would complement the process through Nerve Fibers.

This Communication Network would explain the codependency between Brain and Gut.

New developments are expected.