One anecdotal story does not make it true, DarlinLaurie. If you wish for an anecdote, I am full of energy always and I do not eat a low carb diet. I have been saying that different diets fit different training routines and that form follows function.
Carbs are the bodies primary source for energy, that statement is scientifically accurate and no amount of debate can make it false.
I have stated that processed flour and sugar is bad. I have stated that most every long distance runner carbo loads. Just because one was found, does not make my statement invalid.
I was a fat kid all through my life until I turned 16. The method I used to lose the weight was limiting my caloric intake and exercise. At the time I did not know about dietary specifics, I just did it with a good old calorie counter.
Carbs are converted to energy much easier then protein. Protein is an inefficent energy source is all I am saying. Fat is calorically dense and that is why eating to much of it might make you fat. It has twice the calories of protein and carbs.
Diabetes and all the problems associated with Americans are because of too much processed sugar and sedentary lifestyles. I guess I am one of the few "Bad guys" on this thread and damn it, its fun! ;)
No, many don't load, because many know better and they know that carb loading is a myth because you run out of glycogen in 20 minutes anyway.
Here is a study that was done on this very issue:
Enhanced Endurance in Trained Cyclists During Moderate Intensity Exercise Following 2 Weeks Adaptation to a High Fat Diet Reference: Lambert, E.V., Speechly, D.P., Dennis, S.C., et al.,
"Enhanced Endurance in Trained Cyclists During Moderate Intensity Exercise Following 2 Weeks Adaptation to a High Fat Diet," European Journal of Applied Physiology and Occupational Physiology, 69(4), 1994, pages 287-293.
Summary: This study sought to compare the effects of two weeks of a high-fat, low-carbohydrate diet (70% fat, 23% protein and 7% carbohydrate) with two weeks of a high-carbohydrate, low-fat diet (74% carbohydrate, 14% protein and 12% fat) on exercise performance. Five trained cyclists were required to perform a host of cycle tests at various intensities and lengths of time. Based on the results of these tests, exercise time to exhaustion during high intensity exercise was not significantly different between groups. However, when comparing the different diet groups performance during moderate intensity exercise, time to exhaustion was significantly longer after subjects followed the high-fat diet, despite starting off with lower muscle glycogen content (stored glucose). Subjects in the high-fat group also had a lower respiratory quotient, indicating that they were burning fat for fuel in place of carbohydrate. Subjects were able to pedal nearly 40 minutes longer than individuals eating a standard high-carbohydrate diet.
Actually it is completely and totally false. You would die if you totally eliminated protein or fat from your diet. You would be healthier if you totally eliminated carbs from the typical American diet.