What form of malic acid could I take to replace the 5 green apples per day in a liver cleanse?

I just finished a 6 day liver cleanse eating 5 green apples per day. I have hypoglycemia and it was too much sugar for me. The malic acid is supposed to soften the gall stones. Can I get the Malic acid in another form to achieve the same softening effect?What form of malic acid could I take to replace the 5 green apples per day in a liver cleanse?
yeah you can get it is magnesium malate (magnesium + malic acid). Found as Ultra Muscleze by Bioceuticals. See a naturopath for it.

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