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.
In case you are wondering how a carb stacks up to a gram of fat or of protein: 1 gram of protein = 4 calories. 1 gram of fat = 9 calories. A Better Answer: 50-100 grams per day for weight loss and 100-150 to maintain weight. Following the recommendation from the USDA on how many carbs to eat everyday would probably result in weight gain and at the least in not losing weight â assuming you were eating the right amounts of other foods. By sticking with 50-100 grams of carbs a day, you can still lose weight and do so in a much more healthy and reasonable fashion.