Post by reddarin on May 19, 2013 15:22:04 GMT -6
From page 3 of The Art & Science of Low Carbohydrate Living:
From page 4:
What Does "Low Carbohydrate" Mean?
There are two ways to define the threshold below which you are eating a "low carbohydrate" diet. The first is defined by what you as an individual perceive - it is that level of carbohydrate intake (be it 25 grams per day or 125 grams per day) below which your signs and symptoms of carbohydrate intolerance resolve.
From page 4:
Defining 'Nutritional Ketosis'
The second way to define 'low carbohydrate' is physiologic - specifically that level below which there is a fundamental shift in your body's fuel homeostasis (i.e., energy regulation) away from glucose as a primary fuel. This shift is the adaptation of the body's hormonal set and inter-organ fuel exchange to allow most of your daily energy needs to be met by fat, either directly as fatty acids or indirectly by ketone bodies made from fat. This process, which is discussed more fully in Chapter 7, begins for most adults when total carbohydrate is restricted to less than 60 grams per day along with a moderate intake of protein.