Depression’s Dirty Secret - It’s Not in Your Head, It’s in Your Gut! | TUH #006

2 Nov 2023 · 9 min
9:24

YouTube episode by Gary Breca (Ultimate Human podcast) arguing that many cases of depression stem from biochemical deficiencies—particularly low serotonin produced in the gut—and impaired methylation. The host connects serotonin synthesis to gut methylation, methylated B-vitamins (methylfolate, methyl B12, SAMe), genetic variants that limit vitamin conversion, and suggests methylated supplements and genetic testing as potential remedies; cites clinical study results linked in the episode.

Questions this video answers

26% ("1 in 4 Americans")

In the gut (he stated about 90% of the body's serotonin is produced there).

44% of the population (as stated in the episode).

Up to an 85% reduction in the incidence of anxiety and depression in four of five participants (host's description).

Chapters

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