Why am I not "using" my ketones?

[WholeNewAmy]

I am 9 months in (down 70 lbs.) but a little concerned because I still have light to moderate ketones in my urine. From what I’ve read I should be adapted enough to be using them and not spilling them by now. Could this explain why I’ve never experienced the cognitive benefits that so many people rave about? I am homozygous MTHFR, could this be part of the issue?

[Shortstuff]

Why You Need To Stop Worrying About The Color Of Your Ketostix - Ketopia

[Anniegirl9]

If you’re staying below 20g’s of carbs a day, your body has to be using ketones or you wouldn’t be functioning.
Everyone is different. You could take two people identical in weight and height, feed them the same diet and they will produce different amounts of ketones.
It’s likely you are just producing on the high side and it’s more than your body needs. It’s really not that big of a deal.

[devobi]

I asked a similar question in Questions for the Obesity Code podcast, here:

Questions for Jason Fung and Megan Ramos

Ketostix (urine ketone testing) I’ve heard all of the podcasts on how you should test blood, not urine or breath. The common issue I hear on the urine ketone testing is that it becomes inaccurate after you’ve been in keto for a few weeks. But, what if it doesn’t? I started Keto on 22 Jan 2018, a little more than 6 weeks ago. During that time, I’ve been testing urine ketones mostly daily, or every other day, in the early evening (6 pm). I use the TRUEplus Ketone Test Strips from NIPRO Diagnos…

And they answered it on the podcast:

Questions for Jason Fung and Megan Ramos

Just in case you thought these questions were going into the ether, Megan Ramos answered several of them on this week’s Obesity Code Podcast. http://obesitycodepodcast.com/live-q-and-a-with-megan-ramos/