Glucose charts
See how meals, movement, and daily habits shape your glucose levels from morning to night.
Testing & Tracking
Continuous Glucose Monitor (CGM)
Take control of your glucose, weight, and metabolic health with continuous glucose monitoring, expert dietitian support, and powerful insights—all in one program with Nutrisense.
Blood sugar dysregulation is one of the earliest breakpoints in how your body ages²
Track how diet, exercise, and other daily habits impact your glucose and longevity
Stream glucose readings to your smartphone every 15 minutes
HSA / FSA
Ongoing, expert support
Free shipping
100% online
Frequently asked questions
I’m in a calorie deficit but not losing weight, can Nutrisense help?
A calorie deficit tells part of the story. Nutrisense can show how meals, sleep, stress, and movement align with glucose levels throughout the day, helping you spot patterns that are difficult to see through calorie tracking alone.
Stelo captures the data, the Nutrisense app turns it into clear trends, and eligible members can work with a registered dietitian to test more personalized strategies without relying on guesswork.
Does applying a Continuous Glucose Monitor (CGM) hurt?
Most users are surprised to find that the application is painless. The Continuous Glucose Monitor (CGM) uses a tiny flexible filament (not a rigid needle) that sits just under the skin. Once applied, it is water-resistant and durable. You can swim, shower, and exercise confidently knowing it is designed to stay secure for its full wear duration.
Nutrisense vs. Stelo or Signos: What is the difference?
We’ve partnered with Nutrisense to give you exclusive access to their advanced continuous glucose monitoring program. Other programs give you a sensor, automated alerts, and data without interpretation. Nutrisense gives you Nora, an AI dietitian that analyzes your patterns 24/7, plus a glucose-certified human dietitian who uses Nora’s insights to build a plan specific to your body and goals. That’s the actual differentiator: not the sensor, which is largely the same across programs, but what happens with what it finds.
Usage instructions
View all FAQs
Apply the Stelo biosensor to the back of the upper arm and complete the 30-minute warmup. Glucose readings will then sync to the Stelo app, with deeper tracking and insights available through Nutrisense.
Important safety information and common side effects
Consult your healthcare provider before making any medication adjustments based on your sensor readings and do not take any other medical action based on your sensor readings without consulting your healthcare provider. Do not use if you have problematic hypoglycemia. Failure to use Stelo and its components according to the instructions for use provided and to properly consider all indications, contraindications, warnings, and cautions in those instructions for use may result in you missing a severe hypoglycemia (low blood glucose) or hyperglycemia (high blood glucose) occurrence. If your sensor readings are not consistent with your symptoms, a blood glucose meter may be an option as needed, consult your healthcare provider. Seek medical advice and attention when appropriate, including before making any medication adjustments and/or for any medical emergency.
The Stelo Continuous Glucose Monitor (CGM) System is an over-the-counter (OTC) integrated Continuous Glucose Monitor (iCGM) intended to continuously measure, record, analyze, and display glucose values in people 18 years and older not on insulin. The Stelo Continuous Glucose Monitor (CGM) System helps to detect normal (euglycemic) and low or high (dysglycemic) glucose levels. The Stelo Continuous Glucose Monitor (CGM) System may also help the user better understand how lifestyle and behavior modification, including diet and exercise, impact glucose fluctuations. The user is not intended to take medical action based on the device output without consultation with a qualified healthcare professional.
CONTRAINDICATIONS: No MRI/CT/diathermy – MR unsafe.
WARNINGS: Choking hazard. Don’t use if you have problematic hypoglycemia. Don’t use if you are on dialysis. Don’t ignore low/high symptoms: When your sensor readings are not consistent with your symptoms, consult your health care provider. Consult your health care provider before making any medication adjustments based on your sensor readings. Learn more at https://www.stelo.com/en-us/safety-information.
Note: The above statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
What is continuous glucose monitoring?
Most health plans are reactive and built around snapshots: a lab result, a weigh-in, or how you happened to feel that day.
A Continuous Glucose Monitor (CGM) fills in what happens between those moments, showing how glucose levels shift alongside meals, movement, sleep, and stress—months or years before it would show up on an annual panel—which is why we partnered with Nutrisense to offer their trusted program to our members at cost.3
Understand how your body responds to different foods, stress, and activities.
See your body respond with Nutrisense
Daily averages
Establish a personal baseline and watch how your average glucose changes over time.
Trends & patterns
Track your glucose score, sleep averages, and time in range to spot recurring patterns.
Meal responses
Compare meals to learn which foods and portions work better for your body.
Goals & habits
Connect food, sleep, stress, and activity with the habits helping or holding you back—and turn that connection into an actual next step with your dietitian.
Glucose charts
See how meals, movement, and daily habits shape your glucose levels from morning to night.
Daily averages
Establish a personal baseline and watch how your average glucose changes over time.
Trends & patterns
Track your glucose score, sleep averages, and time in range to spot recurring patterns.
Meal responses
Compare meals to learn which foods and portions work better for your body.
Goals & habits
Connect food, sleep, stress, and activity with the habits helping or holding you back—and turn that connection into an actual next step with your dietitian.
Why we partnered with Nutrisense
Glucose is one of the few health signals you can watch change in real time and one of the earliest windows into how your body is aging.2 Nutrisense turns those readings into useful patterns, which is why we chose the program and offer it at cost.
Exclusive AgelessRx x Nutrisense partnership
Stelo by Dexcom readings every 15 minutes, Nutrisense app, and Nora AI daily insights
Expert support from Nutrisense’s glucose-certified dietitians
Clinically studied
The science of glucose monitoring
Glucose changes throughout the day. Stelo continuously measures glucose in the fluid beneath the skin and updates readings every 15 minutes, capturing the spikes, dips, and variability that a single snapshot can miss.
In research studies following non-diabetic adults over time, higher glycemic variability measured by CGM was a significant predictor of who went on to develop diabetes, providing information with real predictive value.3
When that variability is viewed alongside meals, activity, sleep, and stress, individual readings begin to tell a larger story. Patterns can show which meals produce a different response, how movement aligns with the curve, and whether small changes appear to be moving glucose in a steadier direction.4
Expert guided care
Personalized care that starts with you
We see glucose imbalances as real, measurable, and treatable. So you can get care that gets you where you want to be.
$99/month
Billed monthly with 6-mo commitment
What’s included
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Exclusive partnership with Nutrisense
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2x glucose biosensors sent monthly
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Continuous biosensor coverage every month
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Free 1:1 registered dietitian consult (if covered by insurance)
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Ongoing support and check-ins
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Backed by our in-house Stanford PhD-led team
How it works
Choosing how you age starts here
1
Clinician-led
Connect with a nutritionist
Connect with a glucose-certified registered dietitian or certified nutrition specialist who uses your data, lifestyle, and goals to build a personalized action plan. 100% online. No in-person visit required.
2
Fast, discreet shipping
Get your biosensors
Receive 2x Stelo biosensors each month, with overpatches and setup instructions included, shipped directly to your door so you can begin tracking at home.
3
100% online
Receive continuous support
Start with one goal, then keep building over time. With our in-house care team, unlimited provider messaging, and 40+ science-backed treatment plans, your care evolves with you.
Get Started
Disclaimer
The above statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. See above for important safety information. Benefits outlined on AgelessRx.com are based on 3rd party studies. Actual product packaging may appear differently than shown.
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Frequently asked questions
A Continuous Glucose Monitor is a small, flexible sensor worn just under the skin that measures your glucose levels continuously, every 15 minutes, rather than the single-point-in-time snapshot you get from a finger prick. Scan it with your phone or a reader, and you can see where your blood sugar has been over the last several hours, not just where it is right now.
Blood sugar swings affect energy, focus, cravings, and mood well before anyone would call it a diabetes diagnosis, and glucose regulation is one of the earliest systems to show strain as metabolic health declines, often years before it affects a standard lab value.2 3 5 Wearing a CGM lets you see, in real time, how specific meals, workouts, sleep, or stress actually move your glucose, which turns vague dietary advice into something personal and specific.
The Stelo Glucose Biosensor is a pioneering over-the-counter (OTC) device, approved in early 2024. Since the summer of the same year, it’s been available to buy without a prescription across the United States.
It is designed for a broad audience—for example, people with type 2 diabetes who are not on insulin, those with prediabetes, and even those who want to learn more about how their eating habits affect their glucose levels. As one of the first non-prescription Continuous Glucose Monitors (CGM), Stelo offers a simple, no-frills option for beginner glucose monitoring.
Accuracy: Stelo provides reliable glucose readings. While sensors are designed to last up to 15 days, note that around 20 percent may not last the entire duration, and 10 percent may only last for 12 days.
App Compatibility: The Stelo app integrates with Apple Health, providing basic glucose tracking without advanced analytics. When paired with Nutrisense, users benefit from deeper data insights and better tracking options.
A glucose biosensor like Stelo offers a window into your body’s glucose response, not just an average. HbA1c gives you a single number reflecting roughly three months of average blood sugar; it can’t tell you that a specific breakfast spikes your glucose levels while a similar-calorie lunch barely moves the needle, or that your glucose runs higher after a poor night’s sleep.6
That level of individual, real-time insight is something no once-a-year blood draw can show you, and it’s often the missing piece between generic nutrition advice and something that actually works for your body.
Show me the
citations.
We vet everything on PubMed so you don’t have to. Here’s what the science says.