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
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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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J.B.
Bozeman, US
★★★★★ 5
Love Saucony
Size: 3 Wide Little Kid, Color: Fuchsia, Size: 3 Wide Little Kid, Color: Fuchsia
These sneakers are bright, comfortable, and surprisingly versatile, but they lean more fun and practical than trend-polished or premium. First Impressions & Design: The fuchsia color is the first thing you notice — bold, playful, and full of personality. It feels energetic rather than overly “girly,” which is probably why both my nephew and niece are drawn to them. The design has a sporty, modern look that works well for everyday wear. It feels like a real athletic shoe rather than just a colorful kids’ sneaker. Overall, they read fun, current, and kid-approved. Color & Style Appeal: This is a standout feature. Bright pink feels fresh and confident Appeals across personalities and styles A fun reminder that color trends always evolve (pink definitely having a comeback moment) It’s the kind of shoe kids want to wear, not one they’re convinced to wear. Fit & Sizing: The wide sizing is a major plus. Great option for wider feet More comfortable than standard narrow kids’ sneakers Gives toes room without looking oversized A helpful choice if finding comfortable kid shoes is usually a challenge. Comfort & Wearability: Comfort is strong for active kids. Lightweight enough for running and play Cushioned sole feels supportive Easy for all-day wear They’re built for movement, which matters more than looks alone. Support & Performance: These perform like a real sneaker. Good grip for playground or school use Stable sole for active movement Supportive enough for everyday wear They’re practical, not just cute. Durability: Saucony is a respected brand known for style and durability. These shoes are solid for kids’ use. Holds up well to regular activity Materials feel reliable Bright color may show dirt faster than darker shoes They’re made for actual wear, not just occasional outings. Quality: Quality is what you’d expect from a reputable athletic brand. Better structure than many fashion kids’ shoes Consistent construction Functional and dependable They feel built to last through normal kid use. Style & Versatility: These are more versatile than the color might suggest. Great with casual play clothes Fun statement shoe for simple outfits Works for kids who like bold colors regardless of gender The color makes them stand out, but the design keeps them wearable. Final Thoughts: These sneakers combine comfort, support, and standout style in a way kids clearly notice. The wide fit is a bonus, and the fuchsia color gives them personality without limiting who can wear them — which may explain why everyone wants a pair.
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Reviewed in the United States on April 14, 2026
M
ms lou
Lowell, US
★★★★★ 4
Pink name brand walking shoes
Size: 7 Wide Big Kid, Color: Fuchsia, Size: 7 Wide Big Kid, Color: Fuchsia
Looks and feel like the real deal. I only tried them on and the soul of the shoes are comfortably soft. Eventhough, they say child shoe, I got a size seven and they fit good on my feet (size 8 in women). Good looking walking shoes .
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Reviewed in the United States on April 25, 2026
C
CEZ
San Leandro, US
★★★★★ 5
Great Fit for Wide Toes
Size: 5 Wide Big Kid, Color: Fuchsia
I should start by saying that these shoes were tested by an adult who happens to wear a child's size 5.5, ladies size 7.5 or 7W, and ordered a size 5W in the florescent pink. These shoes are way more comfortable than the other Saucony sneakers I own. The wide toe bed doesn't put any pressure on the outside of my feet and my pinky toes are loving the extra space. The insole is not removable in these shoes, but I found them to be comfortable enough without an extracurricular insole. I have only used these shoes for active days; running errands, doing chores, walking, but not for running or exercise. My adult feet and body found these shoes more suitable for walking, but for a younger person I would expect these to be great for exercise or daily wear. The color is super vibrant. I don't mind a bright shoe and I own a lot of colorful footwear, but these are shockingly pink. Then you combine that pink with the bright white sole, and it is borderline blinding. I have worn them a few times now and they definitely stand out. These would be a great option for a pink loving person, or someone looking for an eye catching shoe to punch up their wardrobe, but for me they're almost too much. These shoes are on par with my expectations for the brand, but I feel like they have an inflated price point, that most parents shopping for kids athletic shoes may struggle to justify. I know that finding shoes to accomidate wide feet can increase the price significantly, but I still think these shoes would be best purchased on sale.
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Reviewed in the United States on April 15, 2026
C
Caralyn Blanchard
Lexington, US
★★★★★ 5
Perfect girls tennis shoes
Size: 7 Wide Big Kid, Color: Fuchsia
These shoes have been great for my daughter! They’re lightweight, comfortable, and supportive enough for everyday running around, school, and sports activities. My daughter said they felt comfortable right away with no break in time needed. The bright pink color is really cute in person, and the shoes seem well made and durable so far. They fit true to size and have good cushioning without feeling bulky or heavy.
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Reviewed in the United States on May 13, 2026
S
Siena
Pawtucket, US
★★★★★ 5
Stylish and comfortable
Size: 5 Wide Big Kid, Color: Fuchsia
I got these for my 9 year old who needed new sneakers. She loves all things pink and instantly loved the look of these shoes. They are extremely breathable which is great for running around and airing out those sweaty feet. The fact that they are wide is perfect for her as well; so many sneakers end up being narrow and confining. They fit great and look great and both mom and daughter are very happy with these!
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Reviewed in the United States on April 25, 2026

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