Older people Have seen good benefits of using yoghurt because of the good bacteria. The probiotics found in yogurts at your local market are good but not great as they dont have many types of probitics usally 1 to 4. Better yoghurts are available that generate gcmaf these are many https://www.gcmafproducts.com/store/p57/GLYCO-D_GCMAF_YOGURT_1LTR.html