Nigel said:Hi Prometheus
It's not about looks or weight. I'm already pretty skinny/light (60kg @ 174cm) and around 6-8% bf. It's about being able to better utilise fat over carbs and avoid the bloated feeling from overeating, and also be able to run further. I think there's an ultra-runner in me trying to get out.
Just skimming through the above. But you will better utilize fat when you are more highly endurance trained as well regardless of diet.
Nigel said:The only difference I noticed was that I was super thirsty, and went through 800ml of water. Usually I wouldn't have had more than a cup of coffee and a sip of water.
Increased protein catobolism would lead to an increased need for water, and thirst. Glucose is still going to be required for higher output activities, as well as used for brain function, and without carbs to rely on a higher percentage of that will come from protein eaten or worn!