Ketone Meter, Professional Portable Ketone Breath Tester for ketogenic Diet ketosis Ketone Breath Analyzer with 10 Mouthpieces -Black

First of all, do not use this if you've had any alcohol several hours earlier. It will give a very high reading. Second, DO run it a few times without breathing into it. It needs to be reset and I notice it takes a 2 or 3 times even 4 times of running without breathing into it to get it back to a low number (0.3 or less). Be careful that you don't get 0.00 with the red light before testing your breath. If you do, try again until you get a low reading with a green. Only after that will you get a fairly accurate reading. They tell you to do this when you first use to clear it. They don't tell you you must do this EVERY time you use it.

Okay, no one told me that those test strips were for very very very limited usage. I've been doing Keto for 6 months and for the last 2 the test strips kept saying I wasn't in Keto although I'm only eating enough vegetables to stay healthy, no starchy carbs at all, and meat--and only one meal per day with no snacking. And I haven't been losing weight for the last 2 months after a medical test and prep. in the mornings when I wake before I brush my teeth, my mouth tastes sort of "fruity" although that's not quite precisely correct. According to this gizmo, I am in Keto but it seems my body has gotten used to it so now i know I'm going to have to step up my exercise and perhaps add some complete fasting (none of that sissy skip breakfast or lunch "fasting"--that's just skipping breakfast or lunch) for 24-48 hour stretches. It's just good to know, information is knowledge.

I saw the mixed reviews but decided to give this unit a try. I am a fitness enthusiast and usually start my cut cycles with a protein sparing modified fast for 12 days. I wanted to know at what point in the fast I reached ketosis. I followed all the instructions including clearing the residuals before the first use and after each additional use and using it first thing in the morning. The first time I used it I received a 3.15 reading with the green status light lit. Every subsequent reading was 9.95 (still with the green light lit). I am fairly certain I’d be dead by now if those readings were accurate. I had my husband, who is not following a keto type diet, try it and he did get a 0 reading. I’m guessing there is a calibration issue where it is inaccurate and falsely elevates higher readings.

Got normal ketone readings for a couple days then it went crazy showing 10 to 11 readings. I repeatedly reset the meter as recommended with 5 minutes between restarts three times and tried again. Same result. I then had a person not on keto diet blow into it after reset procedure. She read 10 as well. Was very scary. We should have been in ketoacidosis and dying Others who reviewed this product have had similar experiences. I sent it back and Amazon refunded my money. Thank you Amazon.

It worked fine for 2 weeks. Now it is showing that I am in a constant state of ketoacidosis. There isn't clear directions on how to reset the device. Not expecting it to stop working after two weeks.

Readings have never been close to those of blood tests. Compared this meter against others and none of them read as high as this one does. It reads at 5.80 all the time, never changes, reading are always the same. Tried all the suggested remedies I could fine to make this work and nothing changes the same 5.80 readings. It's junk! Don't buy this save yourself the money and disappointment! Looking at the comments many other people have the same or very similar issue. I don't see the vendor making an effort to fix or replace for anyone. so mine sits in its box as a reminder of the wasted money...I hate writing bad reviews, but I hate wasting money more!

I calibrated against blood readings and this is wildly inaccurate. Can't be trusted for Keto Diet

Not very accurate. Will not zero, often. Must recalibrate 3 cycles each use. Instructions are unclear so I went on youtube and depending on which YouTube video you watch very diff from one video to the next. There has gotta be a better way.