[asdfman123]

The best treatment for my own ADHD, depression and anxiety is living a healthy lifestyle, across the board, full stop.

It means regular exercise, 6 hours of cardio a week, eating healthy, meditating, spending time in the sun, etc. etc. (And anti-depressants/therapy, which play an important role too.)

Of course, it's too much to tell someone struggling to do all those things, but if you can work towards that, I strongly recommend it. I've had to declare war on my depression and ADHD because I can't afford to have it in my life anymore.

At some point perhaps the science will catch up and explain precisely how these things help, but until then, I feel like you have to take the ancient approach of observing people who have things figured out and emulating them. (And I say this as someone who is very much pro-science.)