I agree and disagree.
Agree with the processed foods, none of that crap can be good for you. I do my best to stay away from it. But comparing diets between different area's is difficult, different lifestyles and activity levels.
Italians in Italy do not each large quantities of pasta though, usually its just a small amount as a side dish, not as a meal like I grew up on . Olive oil is great for you along with tons of other types of fats. I changed my eating habits bit ago, and did way to much research. Never read up on the Asians and white rice, however i'm sure they have more activity in their lives then a typical american.
Long story short, the less sugar and processed grains (or carbs in general if your strict) you eat the better.