Which nutraceuticals or phytoceuticals do experts definitely “recommend” for psychiatric disorders?

Nutraceuticals and phytoceuticals are treatments that can be part of complementary/ alternative/ integrative medicine. For distinctions between these terms, please see the following article on this website: What do the terms complementary, alternative, integrative, and functional medicine mean? I have always felt uneasy that I don’t know much about many complementary/ alternative/ integrative medicine products…