1 If you are on the ZIP code field, only numerical values can be entered. If you try to enter a letter in the ZIP code field, it will not be entered as a value. ZIP code should be entered as a 5-digit number.  Phone numbers must be entered with three-digit area code, three digit prefix, and 4-digit number.
A daily limit of 60 to 130 grams of carbohydrates is typical with a low-carb diet. These amounts of carbohydrates provide 240 to 520 calories. Some low-carb diets greatly restrict carbs during the initial phase of the diet and then gradually increase the number of allowed carbs.
In most studies of low-carb diets people drop their caloric intake down to the 1500-1700 kcal range and are quite satisfied. At that level of caloric intake, they need a fair amount of their own body fat to make up the difference between their dietary intake and the 2400-2600 kcal (or more) that they burn every day. As they consume this body fat, they lose weight. Once people settle in to low-carb diets, a couple of things happen.