A 3500 Calorie Deficit = Approximately 1 Pound of Weight Loss. If you are trying to lose weight through calorie counting, you will need to know how many calories it will take to lose a pound of weight. Creating a calorie deficit of about 3500 calories should result in about 1 pound of weight loss. That is, if you consume 3500 calories less than you burn over a given period of time, you should lose around 1 lb of weight. To get an idea of how many calories you burn, take a look at our article on how many calories do I burn in a day.
My mother's cat went into Congestive heart failure about a year and a half ago and she is still with us. There are a fair number of us on here that have dealt with cats with this condition. Please do not hesitate to start a thread of your own if you have any questions or just need some support.
A healthy cat can survive at least three days with no food or water and about 30 days if it has water only. Without food the cats body will start to utilize body fat for sustenance and when that runs out the cats will body will begin to absorb the muscles and internal organs until the heart stops.