I feel not eating after noon is a very good way to be healthy. The health problems happen when, even though one doesn't eat after noon, one has tea and other things, which by themselves are fine, but when taken with sugar, are bound to cause problems, given the fact that insulin sensitivity decreases as the day progresses.

It also doesn't go with the general advice that eating thus would help us be equanimous when struck with hunger. I prefer only water after noon, and even when I eat a huge meal during the day, it's all slow carb. Eating thus also helps to balance our body processes, as our body is catabolic during the day (hence eating mostly then to balance out, as digestion and assimilation is anabolic).

I also feel that the Budhha, who was so in tune with his feelings, could feel this last point, that eating this way leads to a balanced body at all times.
Of course, no one way is the best, it's all about being on the middle path, right? But these, in my opinion, are some ways in which this diet, when done properly, could be helpful to us, as validated by the science of today.