[cc81]

While doctors don't always know the most about a diet there is also the aspect of actually following the diet. People suck at following diets so giving one that is as little adjustment from a normal diet as possible might increase compliance and will result in predictable insulin levels.

If you pick a very strict diet then people drop the diet completely or cheat all the time, resulting in uneven insulin levels.

It is like inflammatory bowel disease. Many doctors rarely prescribe rectal medication for long term use even if it might be more effective than alternatives just because it is difficult enough to get people to take their pills.

But I do think diet suggestions will change more in the future when it comes to diabetes.