Supplements and Water Fasting

I am on day 4 of an unplanned Water Fast sort of, only cheated once and ate 1/2 potato 2 days in. I am also trying to cleanse a nasty bacteria of some sort causing bloat and weight gain/water retention. Therefore, I am still taking essential oils, herbals, and yesterday did a vitamin C flush.

I know it is not a true water only fast, but when you are fighting something like I have, you can't stop the anti-bacterials.

I see this was asked on this page below, but the reason why supplements are not recommended wasn't given. Can someone clarify why it is not recommended?

Thanks!

PS: Even cheating once, I have have still lost 6.5 lbs in 3.5 days.