Quick Keto Calc.

The highest reading on KetoStix is 160 mg/dl (milligrams per deciliter).

That's 1.6 gm per liter of urine. Let's say one pees 1 liter per day.

Over 300 days, that would be 480 grams of ketones, or just over 1 pound.

So, direct ketone loss through urine is not significant to weight loss even at the largest levels of loss (that we rarely reach.)