Yes, and it's hard to pull apart how much is physiological and how much is life, because life experiences create physical changes that manifest as depression. At this point, my therapist believes I would do well to tend to both ends of it. Since I have been messed up by meds, I no longer take them. So, to ease the physical influences of depression, I go for walks, stay away from sugar, eat whole foods (no animal products for ethical reasons, but it has helped me be healthier and calmer), and take supplements. I have a b-12 deficiency (from before I went vegan), so I take supplements for that, as well as Omega 3's, D, etc.

All those things do not eradicate the depression, but my body has more energy than it used to, and that's helpful. For one thing, I'm not making it worse.

I sometimes talk about diet and nutrition in therapy. My therapist is a good sounding board and we share similar values on the diet/nutrition front.

This is a long way of saying that both approaches are important--the physical and psychological.

I also watch a lot of animal videos and can ease the depression just by watching a guinea pig eat a slice of carrot.

My therapist encourages me to find anything to do, watch or read that lifts even 2% of the heaviness. Approaching it in that small way feels less overwhelming.