Why not study transgenic plants producing proteins for treatment of diseases. Examples: specific antibodies , antigens for vaccines, hormones (erythropoietin, insulin,somatotropin) or interferon alpha. For proteins that need glycosylation for their activity it is also possible to introduce in such plants enzymes that are going to "humanize" the peptides.
You can also work on to define health status of patient by using Bioelectrical Impedance Analysis and its parameters. Just like ECW Ratio, edema, phase angle and segmental edema etc.. İf you need any help on this, currently ı am working on this subject so ı can kindly help you
you can study (Extraction and identification bio active compounds from meat or plant seeds and relationship with hypertension or some biochemical parameters .