Probiotic chickens are organically farmed chickens without antibiotics, fed with Lactobacillus from Singapore technology and listens to Mozart. Compared to normal chicken, they are lower in cholesterol and saturated fats. Other than being rich in vitamins and essential minerals, chicken heart is a good source of taurine which is necessary for maintaining a healthy cardiovascular system in pets - especially in cats since they cannot produce their own taurine and need to obtain it through food.