Either you did not read the links, or you do not comprehend them.
Second link (http://www.health.harvard.edu/healthy-eating/glycemic_index_and_glycemic_load_for_100_foods)
100% Whole Grained bread (Natural Ovens) 51 30 7
Pumpernickel bread 56 30 7
50% cracked wheat kernel bread 58 30 12
Coarse barley bread, 75-80% kernels, average 34 30 7
The three above are full / whole grain breads.
Now the "white flour breads"
Wonderà bread, average 73 30 10
Whole wheat bread, average 71 30 9
Relevant is the first number, glycemic index. It determines if it triggers a high insulin level and transport of fat into fat cells and transformation of carbs into fat.
The bottom line is that eating carbs is eating carbs whether they are whole grain or refined they still metabolize into sugars and you will bonk when eating them
That is nonsense, while I eat not much carb, I still eat carb ... e.g. beer has lots of crabs.
As long as you have no intolerance and eat healthy it bottom line does not matter what you eat.
For the average fat american (or for that matter european) however it is easier to lose weight on a low carb diet ... but that basically also implies a ZERO carb diet, in the limited sense as this is possible.
Since you seem to think you have your stuff together, how come it hasn't worked for you? Don't know what you mean. Nutrition works fine for me, and all people I taught lost weight and are now healthy :D
(Want me to explain the other links to you, too?)