Definition. The urine creatinine test measures the amount of creatinine in urine. Creatinine is a breakdown product of creatine, which is an important part of muscle. Creatinine is removed from the body entirely by the kidneys. Creatinine can also be measured by a blood test.
Ketones are the byproduct of breaking fatty acids down to be burned. Okay, it's a water fast, but we can assume that after 3 days, ketosis is acheived. About 250 grams of fat is about the maximum amount of fat that will be burned daily. I say around 250-300 grams per day.
I'm not proud of that). Since 1 gram of fat equals 9 calories it would take about 337 days for me to lose extra weight (my goal weight is 80 kg. So, 95 kg - 80 kg equals 15 kg of extra fat that needs to go. That's 135000 calories. 135000 divided by 400 calories (the daily deficit) equals 337 days).