Does Malic acid really make a difference?

Hi, I've never used Malic acid as i've always got stones and they have always been fairly soft, which I thought was Malic acid's sole purpose. However after reading the Liver Flush tips blog where the person said Malic acid made a big difference to the amount of stones he/she gets, I am wondering whether I have missed a trick here. Has anyone noticed a big difference in the amount of stones released with or without Malic acid? thanks

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