So heres the thing right, so I bought these initially because I thought they made the kitty a happier kitty (if you know what i mean) so I've been taking them for the last 3 days and let me just start by saying, I am one of the few people who has trouble swallowing pills however, these are horse pills and I have to take them one at a time or I will choke to death. I have also been feeling less hungry and at times slightly nauseous. I dont know if that is something that can happen with these but it started when I started taking them. I worked on a farm, fruit and veggie farm, so I am no stranger to bugs in food, I'm past that. But these do CONTAIN CARMINE now of you dont know what carmine is, they're dried beetles usually crushed or soaked in some type of alcohol for the red color. Post purchase I discovered that this specific brand AZO has had lawsuits for the added carmine causing anaphylaxis. you can have a severe allergic reaction. now you can always see if you have a carmine allergy by using make up (not vegan) bc it most likely has carmine in it. With that being said, aside from everything I've said i am prone to UTIs so i figured happy kitty and happy bladder=happier me. I will update this review at a later time if necessary but so far okay