My readings are 'alarming' in that I am blowing >0.050 of late instead of being in the typical 0.02-0.04 range. I have cut back on nuts and very high levels of coconut oil. Actually a couple days ago I got a 0.11 on one blow and even rechecked my readout type but I had not accidently changed it. When I first started Keto after a few months I was blowing 0.05-0.08 quite often. I need to dig out my blood ketone tester I guess. I was never one to go for high ketone levels. It could be some of the glucose lowering supplements perhaps effectively lower my net carb intake. Not concerned but I just wanted to mention it to help me to try to learn any WHYS.

I found my Precision Xtra and have measured ketones and glucose twice. After lunch I blew a 0.10 on the breath analyzer and measured a ketone level of 0.9 and on glucose it tested 105. Now at six pm of not having eaten much since lunch I blew 0.071 and blood ketones measured at 0.6 and glucose was 93.

While both blowing and blood ketones did tract in the same directions I remember from nearly three years ago that is NOT always the case from my testing. Sometime when I get a 0.02 or better I will check the blood ketones again now that I remembered where I 'hid' my meter. I have never tested with sticks nor to I plan to purchase any. As long as my blood ketones are at 0.5 or greater most of the times I am pleased.

This Dec I will get another eye exam and see if cataract formations are still on hold. The doctor stated last year he expected my new way of eating is what arrested the development of cataracts. Next May I want to retest on the CT scan for CAC scoring. Now that IR seems to have gone bye-bye it will be interesting what happens to my cholesterol numbers.

Just now blew 0.121 getting ready for bed so I decided to check blood levels and record them. Ketones still at the 0.07 reading but glucose was down to 90. I just came out of a very long hot shower not that was a factor in blowing the record high reading. It does reprove what I learned nearly three years ago that breath and blood ketones level show little if any correlationship. I will try to remember to pull another glucose reading first thing in the morning.

I've been getting puzzling results from the breath meter. It started off with just about every use at 0.04. Then after a few days of that, it was reading 0.02 all the time. Then after a few more days it was 0.0 and it's been at 0.0 ever since. Meanwhile, I'm still getting dark pink or purple on the ketostix.

I'm wondering if my (cheap) breath meter is faulty, or if I'm just not expelling acetone in my breath. My carb intake is pretty consistently lower than 20g net, and still getting positives on the ketostix so I'm confident that I'm in ketosis.

Thanks @GaleHawkins! I've looked for the blood ketone meters here in Canada and the only options I've found so far, are extortionately expensive imports. Like $80 - $100 just for the meter, then the strips are also very expensive, and that's not even factoring in the shipping, duties, and taxes.

Just ran my numbers at 11pm for the evening. I blew a 0.056 with blood ketones at 1.2 and blood glucose at 99.

It has been a hard day. The son and I have worked all day on putting back together a very heavy duty 6 foot bush hog due to a major breakage from hitting a blind stump. We had removed all the moving parts to get the welding done and need to get the fields around church ready for a big Saturday with fireworks at 9 PM so we put in about a 12 hour day on it. Thankfully we have an old backhoe that came in handy living the heavy parts.

Due to so much to do I did not eat so much today. I had a couple eggs for breakfast with BPC. About 2 PM I ate two round eggs and two pieces of sausages at McDonalds while on a parts run to town. About 5-6 I stopped and ate a can of tuna and some green tea.

While my breath testing at .056 was within normal range for me I was surprised with the blood ketone reading of 1.2 and would have expected my glucose levels to have been much lower.

I have decided when I blow crazy high numbers like 0.1XX it is basically without meaning because people are not walking around blowing like 0.190 if it was from alcohol.

10 PM 27 June 2014 I blew a high number and ketone were .9 and BG 107
7 AM 28 June blew high like 0.140 and ketones 1.3 and BG fasting was 91
9 AM 29 June blew 0.035/Ketones .6 and BG fasting of 92

Personally I am going to assume if I can blow at .030+ on this current meter I am going to have ketones in the .5+ range based on blowing and blood results.

Without benchmarking any breath analyzer against blood ketone meter results it is a 'guess' but perhaps less of a guess than with keto sticks but maybe not. The blow meter is just a simple and cheap Go-No Go gauge in my personal experience.

Late yesterday I had to drive an hour to look at an old Exmark zero turn mower by myself since the son was helping out the day at a Boys Scout camp. I bought and started back home and stopped at a Wendy's because they had a lot of space on one side for the truck and trailer.

I order the low carb single but it came with a fry when they called my number. I ate my first order of fries in nearly 3 years and still am in a state of nutritional ketosis this morning. I was last night also per the breath analyzer.

Since I am down to 7 ketone strips and do not like the pricks I am going to stop the blood testing like this. If others have questions about my daily breath analyzer usage for nearly three years I will try to reply.