Originally Posted by chungdae
Be careful with these types of diets. Too much protein ,little carbs diets puts your body into a state of ketosis. It's very poisonous for your body and you will feel "weak" for a couple months until your body adapts to it.
People on a pure ketogenic diet that weight lift feel weak because at the end of the week they've depleted all their "glycogen storages" in their muscle tissue. Every time you weight lift (an anaerobic process) you use glycogen as your fuel.
Go read the thread I just posted on Cyclical Ketogenic Dieting. You cycle a "carb load-up" every weekend and that gets you through the week's workouts. I've lost 8lbs this past week on the diet and lifted more in the gym this week.