There are 10 things wrong with the BCCA page, it really needs to go.  Probably ({cn}} would be best in the "naked spots" to attract more eyes to the V RS problem, to verifiably describe the "mainstream" this time (I am not going to start stuffing the text). This seems most consistent with policy.  As for vitamin K1 (plants), the rare reaction cases at very high doses are suspected to be hypersentivity to some injected component(s) PDR, Goodman & Gillman's of the formulations e.g. propylene glycol, (oxidized?) vegetable oils, micellar emulsions and emulsifiers (ummm), polysorbates, etc.