Best Answer: Right now, according to the dictionary, it's still two. Though it could change with the common usage to either hyphenate time-frame or to put it all in one word.
Under 50 grams of carbs a day will eventually get you to ketosis. Depending on the person and level of activity, it could take 2-3 days or up to a week before the bodyâs glycogen is depleted.nder 50 grams of carbs a day will eventually get you to ketosis. Depending on the person and level of activity, it could take 2-3 days or up to a week before the bodyâs glycogen is depleted.
But ketosis is an adaptation that will spare muscle during times of shortage by instead breaking down fat stores and manufacturing ketones for brain fuel. It is said this state is attained at approximately 48 hours of a water fast for women and closer to 72 hours for men. The effects of fasting ketosis have become a more popular and controversial subject in recent years due to low-carb, high-protein dieters relying on it long-term to burn the fat.