The food we eat has an immense impact on how we feel, and certainly has an impact on mental health issues such depression, attention, emotional regulation, etc. Every single thing you eat is the substrates from which all of your cells are made. The old paradigm looked at food as just units of energy, but that is not the new paradigm. What we eat, how we move, our sleep quality, how we manage stress - these things have enormous implications on pretty much every single health metric you can imagine.

https://www.health.harvard.edu/blog/nutritional-psychiatry-y...