Alton is a great chef and cook, and he follows the science very well. I love watching his shows.
But hes not a nutritionist.
Limeys version of fish here, compared to a fried walleye is really a moot point, if you added one fillet of fried walleye in exchange, youd basically have a carbon copy from a nutritional standpoint.
Although I like simons cooking method much better, the walleye is less denatured, same with the bacon.
however, the two most important things I see in this dish(outside of looking fantastically delishious) is one, the portion size, and two, the addition of veg.
when you consume fats and carbohydrates, veg, especially fibrous, slows gastric emptying. As does the protein of the fish. This lowers the glycemic response of the meal to a nice trickle, instead of a spike increasing insulin drastically. Insulin works as a storage hormone, so the steadyness of that effects the healthy aspect of any meal really.
this in effect is whats called "nutrient partitioning". Basically meaning youve set up your meal in a manner that the body can reap the most benefit of the macronutrients and the micronutrients.
the micros and macros(especially the micros) are damaged by frying. This is why id prefer, from a nutritional standpoint, limeys method. But its one meal. If you designed a study, it would conclude, further testing needs to be done, as results proved to be clinically Non statistical
hope this makes sense, or I at least helped some people go back to sleep???