Reads like an undergrad class project and not a real study
> In summary further research required to get a good quality data regarding saffron mechanism of action, effectiveness, and safety. [...] While results of increased mental wellness coupled with good short-term basic safety profile recommend saffron may be an exceedingly efficient alternative approach for the treating depression. It is at present unidentified that the positive results of saffron obtained during preliminary trials will proceeds in long-term health benefits until well-controlled and longer-term research are achieved.