I first tried PlennyShake when they named it Joylent. I started by days with it and it saved me tons of time. I like the taste, the texture, and how easy it is to make a meal. Now that I'm back to Europe again, I decided to try it again and ordered 100€ worth of it. I had it for breakfast for three days in a row, and then started having digestion issues. Stopped for a couple of days and tried one again yesterday – immediately made my stomach upset. Either they have changed the formula (I don't recall soy protein in it, but well, I first tried many years ago), or something has changed in my body. But all in all, I'm not happy with the product now. I blame it all in soy protein, but it is just a guess