I think most of the case studies probably comes for people that go seek help or are forced to seek help so those are the common trends...
Just like you I myself use it in some of "my balckest, darkest depressions" I really love how you worded it there because it almost is as if I found someone who understands me in the same manner. That is where I believe posts like this is SOOOO power as it brings awareness to a subject and that it is OKAY to have those feelings. Different people have different responses to different stimulus so just like you noticed how many people positively responded to you here.
<3 Keep it up I love this article and it is okay to be you and figure out what is healthy for each and every one of us. To some eating !PIZZA is a good way to enjoy life despite it being "unhealthy" but depression is one of the leading killers so to each their own and hope you find and keep finding your sense of happiness