SKU: 2570391413

Biosense Breath Ketone Monitoring System

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Description

Biosense Breath Ketone Monitoring SystemIf youve been intermittent fasting and or eating a low carb diet to get into ketosis, what you really want to know is, how far into ketosis am I and how badly did my last snack or meal kick me down the keto ladder? How many hours of fasting does it really take to get me into high fat burning mode? Imagine if you could measure your ketones an unlimited amount of times throughout the day, with near gold standard accuracy and no finger pricks! How much

If you’ve been intermittent fasting and/or eating a low carb diet to get into ketosis, what you really want to know is, how far into ketosis am I and how badly did my last snack or meal kick me down the keto ladder? How many hours of fasting does it really take to get me into high fat burning mode? 

Imagine if you could measure your ketones an unlimited amount of times throughout the day, with near-gold standard accuracy and no finger pricks! How much more willpower and motivation would that give you to take your keto goals seriously? 

Now imagine if those results were instantaneously uploaded to a smartphone app via your blue tooth device, where they were computed and optimized for you, so you could determine EXACTLY what foods are wrecking your results, EXACTLY how many fasting hours it takes to get you into high ketosis and EXACTLY what needs to be tweaked in order to reach your personal ketogenic goals? Can you imagine? 

If you’ve been intermittent fasting and/or eating low carb to get into ketosis, you’ve pretty much had to cross (or prick) your fingers that your methods are working. Until now….

The Ketogenic Game Changer 

Every couple of years a new product shows up on the sports nutrition scene that completely revolutionizes what we think is possible. 

The latest gadget making waves is a ketogenic game changer, not only for dedicated athletes, but for anyone who’s serious about getting into ketosis, whether it’s for weight loss, longevity, mental clarity or performance goals.   

It's called Biosense and it’s bringing a whole new level of high tech to the keto game…

As the first clinically backed, non-invasive and highly accurate breath ketone monitor, Biosense has cracked the code on how to measure ketones through breath samples and is reliable enough to be compared to the gold standard of blood measurements. 

For us die hard keto enthusiasts (and the keto curious) This. Is. Huge. 

Why not just pee on a stick or get a prick? 

Sure, urine strips give you a (very simplified) ketosis range and they’re dirt cheap. For basic and beginner keto dieters, that might be okay…

 But, if you’re serious about your ketosis progress, you need multiple, highly accurate readouts throughout the day and urine strips definitely won’t cut it. 

The other option (until now) is blood readings. Definitely more accurate than urine, they work out to be pretty expensive at $1 per test. With multiple tests needing done throughout the day (i.e. multiple pricks) to get full spectrum measurements, I'm going to say, no thank you.

Even if I did decide to draw my blood over and over  (um...  #ketocrazy) those  measures would still be missing the advanced technology to graph everything out for me.  

The Science👩‍🔬 Behind The Magic

BioSense uses a patent-pending, closed flow cell technology that only opens and captures the last 5% of your breath. This process, known as deep lung sampling, provides accurate and reproducible measurements by correcting natural variations in exhalation time and lung capacity of individual people. 

Similar to glucose, ketone levels are highly variable throughout the day, requiring multiple daily measurements to obtain an accurate picture of a person's metabolic state.

This precise technology provides near-instantaneous feedback, on a scale from 0-40, highlighting everything from light to advanced to deep ketosis.

 

 

Why Track Ketones? 

There are quite a few situations in which tracking ketones can be really useful. They are:

1.) Low carb diets (paleo, keto, etc) dieters or keto lifestyle for weight loss or management – low carb/high fat (interestingly, all diets, not just keto, put you into a state of fat burn (ketosis).

2.) Longevity/healthspan focused biohackers (typically those of us edging upwards of 40 and older- but this spills over to performance athletes also). Generally healthy, happy folks that want to live, well, forever (#goals)

3.) Intermittent fasting – eat what you want but in a time restricted window (12-6pm, for example). There is new evidence that indicates a level of ketosis (not hours) is the target for primary health benefits. Longevity and fasting go hand in hand.🤝

4.) Chronic disease – Epilepsy and autism have been treated with ketosis for decades. Type 2 diabetes can now be reversed with the ketogenic diet. There is early, but solid evidence that ketosis has a strong impact on neurological disorders like Alzheimer’s and cancer (where cancer cells need glucose).

5.) Performance athlete – anyone looking to improve body composition, stabilize blood-glucose levels, become more metabolically flexible, and improve mental acuity. At The Feed, we use ketosis as a performance hack to kickstart our winter base training.

We love the mental clarity that comes with being in nutritional ketosis. Shedding some extra winter (or quarantine) weight is an added benefit of achieving ketosis through morning fasting or low carb eating. 

Now you can track ketones with multiple real-time readings, calculate time in fat-burning state and adjust your diet accordingly. It's much more motivating to stay the course when you can literally see your progress. We love it when we get 'in the green' (advanced ketosis) and even turn it into a fun competition at The Feed to see who can stay there the longest!

Excited to learn how the ketogenic diet can improve your body composition, metabolic health, mental acuity, and more? Until now, the thought of daily finger pricks and/or less than reliable breath ketone meters didn’t encourage the keto curious with open arms.  Biosense is the first clinically backed, non-invasive, highly accurate breath ketone monitor to hit the market. Similar to glucose, ketone levels are highly variable throughout the day, requiring multiple daily measurements to obtain an accurate picture of an individual’s metabolic state.


Listen to the Feed Podcast on Biosense: 

  

Included with each Biosense Device:

  • Bluetooth enabled Biosense Device with unlimited testing

  • Micro USB Charging Cable

  • 2 Replacement Mouthpieces

  • Protective Neoprene sleeve

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 2570391413

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4.8 ★★★★★
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D. Hopson
Battle Creek, US
★★★★★ 5
Decent basic backpack
Color: Green
This is a good, basic backpack. It doesn't have a lot of bells and whistles, but it's a solid choice. The sizing is average, it will hold several books and notebooks. The padding felt adequate for most items, but I'm not sure how much I would trust it with an expensive Mac book. The straps were easy to adjust and padded enough. I appreciate that it could be folded up and put into another bag if you needed an extra bag while traveling - it would make a good day pack. Overall a good deal for what it is.
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Reviewed in the United States on October 18, 2025
A
Anne Swan
Whiting, US
★★★★★ 5
Sturdy, attractive, comfortable, large capacity; lightweight, back strap to fit luggage
Color: Green, Color: Green
There are several good features for this BAGOK Lightweight Nylon Backpack, starting with the attractive green color that I chose. It is light weight and foldable yet has lots of pockets. The stitching is good, and the zippers work nicely. The back adjustable straps have padding and netting for cooling. There is also a handle on top for carrying and a backstrap to fit over luggage. On the front, there are two zippered compartments. The small one at the top could hold a wallet or passport or tickets. The larger front pocket is roomy with the zipper under an overhanging fabric. Inside is lined with black nylon. The frontmost large compartment extends the length and width of the backpack. The larger main compartment is at the back and has padding to safely store a laptop, e reader or other electronics. There are two nylon pockets inside the main compartment on one side. There are two outer side pockets. I was able to fit a water bottle in them when the inside was empty. However, if the entire backpack is filled, I don't think a water bottle will fit. One drawback is the side pockets are not elasticized--they don't stretch. I will use this for day trips and travel. It is too large to be a personal item on airlines, but it could be a carryon. You can get a lot of things in it. The nylon material is sturdy and should stand up to wear. I am short, 5'2" female and I could adjust the straps to be comfortable for me. And it does fold up for storage between uses. This could also withstand daily use for hiking, work or school
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Reviewed in the United States on July 3, 2025
M
Verified Purchase
mona najajreh
Louisville, US
★★★★★ 5
Finally found the perfect backpack!
Color: Apricot, Size: 17.3 Inch
I’ve been searching for a backpack that could fit my 16-inch laptop and my other uni stuff since i commute, without looking huge on me, I’m a small girl, so most big backpacks just look bulky and awkward. I wanted something slim and sleek, not one of those backpacks that stick out and have that “belly” shape. After a lot of searching, I finally found this one, and I absolutely love it! The material feels really high quality, and the design is just perfect. I got the 17-inch size, and it fits my 16-inch laptop comfortably. There are so many pockets for organization, plus a separate padded compartment just for the laptop, which I really appreciate. It also has a handle that easily slides over my suitcase handle, which is so convenient for traveling (I travel a lot, so this feature was a must). It’s comfortable to wear, the straps are adjustable, there are bottle holders on both sides, and overall it just looks clean and stylish. i got the beige color one. which i love. I’m really happy with this purchase it has everything I was looking for. I’ll attach a short video showing all the pockets and features because it honestly deserves it!
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Reviewed in the United States on November 10, 2025
J
Verified Purchase
JW
Carnegie, US
★★★★★ 5
Perfect and not bulky
Color: Apricot, Size: 17.3 Inch
Love this slim backpack, plenty of room for my laptop and so much more. Lots of zipper and mesh pockets. I like the separate compartments for the laptop. It’s well designed and very functional. I wanted something that was not bulky and this fit the bill, it’s really great. The material is nice and easy to keep clean. Seems well made, I’ll update down the road if that changes. I recommend this backpack.
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Reviewed in the United States on January 30, 2026
E
Verified Purchase
Essence
Fort Morgan, US
★★★★★ 5
Perfect work travel bag!
Color: Black, Size: 14 Inch
Perfect work bag! I was looking for something for a petite frame. Can fit a lot in it, worth the money, love all of the pockets. Can carry two ways - either with handles or wear on back like a backpack
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Reviewed in the United States on February 28, 2026

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