Any diet that keeps your carb count under 45% of your total calories is considered low-carb. However, getting into ketosis requires you are consuming a very low-carb diet. I have seen keto fans keep their carbs at 60 g (and lower). The low-carb counts force your body to use fat instead of carbs to power the body. Converting fat into ATP creates a ketone (hence the term ketosis). I generally recommend my clients focus on consuming 30-40% of their calories from carbs, especially from whole grains and fruit. Ultimately calories are king when it comes to weight loss. But, in my experience, it is easier to overconsume carbs than the two other food groups combined. Put a bowl of chips and salsa in front of me and I’ll prove it. (Just my thoughts on a complicated topic).