Hi jape. I'm sorrry to hear of your loss. It's understandable your reaction to it.
I agree with Chris of course about the supplements. They aren't needed and will confuse the body- at best taking energy away from detoxifying- at worst keeping you out of efficient ketosis altogether. And if you don't go fully into ketosis you risk starvation because no amount of vitamins can supply all your bodies nutrition requirments on their own. Even astronauts still have to eat food! :)
Good luck with your fast, I hope it's successful and you get the benefits you want from it.