Actually you could be a nutritionist if you call yourself one since it's not a legally protected term. Dietitian is the actual one that is a protected term.

Thats because it is wrong, youve hit the nail on the head. Anything that is sweet activates certain receptors on your tongue, and that stimulates the production of insulin. That insulin is then going to travel your body looking for sugars to break down. Thing is, insulin only breaks down sugars, not artificial sweeteners. So its going to break down sugars elsewhere in your body or leave free insulin in your blood. That fucks you up good and leads to diabetes.

ALL ARTIFICAL SWEETENERS ARE BAD, unless you already have diabetes.

Oh I definitely do the best I can, but it's difficult to avoid sometimes, for instance finding a protein bar without any of that stuff and with good other macros is quite a chore. But I opt for real sugar whenever I possibly can.