casual_cyclist wrote:Some good results but I would be concerned about the loss of lean muscle. A loss of more than 2.5kg of muscle in 4 weeks is quite alarming! I don't really understand it.
Don't take this the wrong way because I am not trying to discourage you from this diet plan, just raising the possibility of the loss of muscle, which I don't understand. I would not tell you to return to eating refined carbs because I really don't see the contribution they make to health. I wonder if the muscle "loss" was merely a depletion of glycogen from his muscles which would make them weigh less without them physically reducing of if it was actual muscle catabolism (breakdown of muscle tissue) for something missing in his diet?
It's quite likely that he was calorie deficient, which is why the muscle loss. Going on a low-carb low-fat diet is bad. It would be very hard to get enough calories, and too much protein is not so good. You are supposed to replace carbs with fat, not protein. Fat has double the calories of either protein or carbs. It seems that the human body is ideally evolved to use fat as a primary source of fuel. Also, there are a lot of claims that the GI index is flawed and that there are no "good" carbs. The suggestion is if you have to eat grains, then sprout them.
But then everyone's dietary needs are going to be different. A vegetarian would have a hard time doing a paleo diet. As previously discussed, endurance cyclists have to bend some rules to get enough calories. The one thing everyone seems to agree on is cutting out refined carbs is good.