Yes, yes, and yes! Great point. I find that coke zero (ACE-K) causes a glucose spike and carb cravings, however, diet coke (aspartame) isn’t an issue for me.
Some more intel here:
http://www.sensiblemedicalsolutions.com/sweeteners.html
Some great tips here but the bottom line (for me) is that the label doesn’t lie. If something has sugar or one of it’s many other names like dextrose/agave/cane juice etc. then we put it back on the shelf.
Whole foods with carbs don’t worry me at all. Onions/garlic/avocado/etc I eat without concern. I might limit those foods that get sweeter when cooked (onions are one) but I’ll eat them raw on a salad etc.
You might find that the longer you eat this way, the simpler your diet gets, the less variety you eat BUT the foods that you do eat will likely be whole foods that are loaded with nutrition. My wife used to believe she enjoyed a large variety in diet, now, after a year of keto, she’s good with steak and eggs or a burger with avocado, maybe some chicken wings, and repeat…
Best wishes for 2018!