Wiktionary(1.00 / 1 vote)Rate this definition: quantity(Noun) A fundamental, generic term used when referring to the measurement (count, amount) of a scalar, vector, number of items or to some other way of denominating the value of a collection or group of items. You have to choose between quantity and quality.
When the body is making and using ketones we say that the body is in a state of ketosis. Ketosis begins after about 48 hours (2 days) or water fast for women, or about 72 hours (3 days) of water fast for men.
When you are in ketosis, fat will need to be 70-85% of your calories. Make sure to eat only healthy fats listed here: 3. Get A Meter. Get a ketone blood meter (find resources here from the King of Keto: Jimmy Moore) and the testing sticks.