Older people Have seen positive hype of eating yoghurt because of the many good bacteria. The bacteria found in yoghurts at your local supermarket are good but not great as they dont have many strains of probitics usally 1 to 4. Special yoghurts are available that produce gcmaf these are https://www.gcmafproducts.com/store/p53/MAF_ONE_EASY_TO_PREPARE_NON_DAIRY_MAF_PROBIOTIC_DRINK_1_LTR.html