If you're thinking of the ingredients, the answer is yes. Less cheese, less butter, more veggies. But then if you think of the ingredients of those ingredients again...

Unsanitary!

First off, street food is a culture of most Asian countries. Thus, food is barely qualified for food safety. Food poisoning is inevitable. Even getting food poisoning from food sold in the store is a common thing. The reason is because facilities aren't advanced enough for factory and bakery to protect food from catching bacteria during the process. Food is made on dirty ground, with bare hands, held in cursorily washed containers and preserved through a improper process. Most early morning sold food is from the previous day. Some food is even reserved for longer period. Going through some magical polishing and decorating, old and spoiled food looks as good as if it just came out off the oven. But the bacteria contained aren’t any different. But sometimes it’s worse than that. It’s street hawkers trying to process sick, diseased meat into mouthwatering dishes we often drool at. Reason? A sick pig or stale fish is cheaper than a fresh one. The cheaper the food, the more people buy, so who would want to invest much in the facilities and preparation? Especially in developing countries, most food sellers only think about instant profits for themselves. Life to them is hard enough, so why would they care about others that much?

Toxic!

The food industry has been so dependent on chemicals lately. I’m not talking about food additives such as artificial sweeteners, food dyes, preservatives, coloring, etc. With those hazardous “magical” additives, Asian food sellers can turn tons of green fruits to ripe sweet ones in one night, turn spoiled food to tasty, turn pork into beef, white-wash noodles and rice, blow up the quantity of the food from double to 10 times, etc. I believe in developed countries, food is somehow inspected carefully. The amount of additives used in food is still not at the warning level. In countries that are a bit chaotic, those types of chemicals are used excessively and uncontrollably. There is barely any single piece of food that does not contain something toxic. But unfortunately, most people aren’t aware of the risks when they process and buy this food because they all look pretty from the outside, taste good and leave no instant effects. Yes, no instant consequences, but long term problems like cancer and other diseases in the next few decades and genetic mutation for future generations.

Solution?

Of course, there is imported food from developed countries. But better food goes along with higher prices. Families that are well-conditioned are willing to exchange for their health. But on the other side, corruption worsens the situation by mixing between good products and "fake" ones. It’s hard to manage the quality of food because as long as the country is still developing, there is still a long period until food is totally examined and qualified for food safety. So, “Is Asian food in Asia healthy?” I would say, “Perhaps not anymore.”