I've ketoed before for weight loss (and am starting again soon) and when I was quite strict with it I'd be well into the ketosis range on those pee strips.
If it's not a sign the body's in ketosis, what is it a sign of?
Also, fwiw, I lose significant weight on keto without moderating my calorie intake at all; fatty meats, cheeses, butter, oil, etc., plus a lot of vegetables. If it's not ketosis, what is it?