Large amt of ketones present in ursine over last few months. glucose norm. thyroid norm. rest of urinalysis always norm. i don't eat as much as i used to. why is this?

Starvation ketones: If you're losing weight and have ketonuria, this may be related to your body breaking down fat stores to use as alternate fuel to feed your brain and heart primarily. This would be particularly so if you are on a no-carb diet. Ketosis can become dangerous particularly when dehydrated even if you don't have diabetes. Please see your doctor about this.

Ketosis?: This could be from various reasons if you don't eat much carbohydrates and more fat or if your body fay(stomach fat) is high, then your body might be using the fat as fuel and hence showing it in your urine. If that's not the case i suggest you see a doctor for evaluation.