Questions about malic acid

I have been taking a Malic Acid supplement in preparation for my flush because i have severe candida problems and can't do the apple juice thing.

There weren't many to choose from, so I got KAL brand of Malic Acid. Unfortunately, they mixed in a whole bunch of other vitamins into it such as:

Thaimine 7.5 mg
Vitamin B-6 10 mg
Magnesium 500mg
Mangenese 10 mg

And an "ActiSorb Base" of Bioperine (Black pepper extrac, cayenne, ginger extract, Rosemary, Tumeric.) 10mg.

The Malic Acid component is 1.5g (1500mg).

My questions are: 1) is it okay that this other stuff is in there?

2) How many tablets of 1500mg malic acid should I take a day, and when should I take them in the day?

3) Should I disolve the tablets in water to make them more absorbable? (They are in a very hard, dense tablet form)

Thank you Andreas!

Ann.