I have to say that I wasn't holding out much hope for these, but they are fairly effective. A few months ago I made the switch to a healthier diet, trying to increase my intake of vegetables and fresh foods, legumes etc. Almost from the go I experienced GI issues. I thought that they might simply go away as my body adjusted to the higher fibre and to the increased amount of legumes etc, but it didn't happen. I tried various probiotic drinks, as well as natural pre-/pro-biotic foods and drinks such as kimchi and kombucha as well as Rennie tablets and nothing helped - most of them simply made the problem worse if anything. However these tablets seemed to simply work right away, from day one, within hours. It didn't even seem to need some time to adjust my gut biome, but got to work right away. There's no denying these are very expensive, perhaps unreasonably so, but I can confirm that they are definitely effective - I am now using the 'Nature's Aid' brand (also from Amazon) simply because I find them equally as effective but a lot cheaper.
