We have been doctoring Simba, our old guy estimated at around 23, for Hyperthyroidism and weight loss, and he is improved, but at times still will vomit we think from that or maybe eating too much too fast (he has no teeth), plus we are using different foods, but I searched on here and saw several of you suggest this product for other cats who vomit plus I read it is also good for loose stools. Samantha has had a vomiting issue all of her life, despite us using the sensitive stomach foods, so this might help her out too. If you use this product and can share your experiences with it I would be grateful, thank you!