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10 Best Ketone Breath Meters in 2026

This comprehensive guide compares the top ten ketone breath meters for tracking ketosis accurately without blood or urine tests.

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In this guide
  1. 01Top 3 picks
  2. 02Compare all 10
  3. 03In-depth reviews
  4. 04Buying guide
  5. 05Use and care
  6. 06Common questions
  7. 07Final verdict

Tracking ketosis levels is essential for anyone following a ketogenic diet or fasting routine. Breath meters offer a non-invasive way to monitor acetone levels without finger pricks or messy urine strips. Choosing the right device ensures reliable data to guide your dietary adjustments and metabolic goals effectively.

We evaluated ten top-rated ketone breath meters based on accuracy, ease of use, portability, and value. Each product was analyzed for sensor technology, display clarity, battery life, and additional features like memory storage or app connectivity. This list helps you find the best tool for your specific health tracking needs.

Each pick highlights key strengths and potential limitations to help you make an informed decision. Prices and availability can change frequently, so verify current details before purchasing. Use these insights to select a meter that fits your lifestyle and provides consistent feedback for your wellness journey.

Top 3 Picks for Best Ketone Breath Meters

Best Budget

Ketone Breath Meter 0-99 PPM
Ketone Breath Meter 0-99 PPM

4.5Editor score

Six display reading ranges
Strip-free testing format
Includes ten mouthpieces

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Editor's Choice

Ketosis Meter for Ketosis Testing
Ketosis Meter for Ketosis Testing

4.8Editor score

High accuracy sensor technology
Color-coded LCD display
32 memory records storage

Check price

Best Premium

AI Ketone Meter Breath Analyzer
AI Ketone Meter Breath Analyzer

4.4Editor score

Bluetooth AI app tracking
Professional grade sensor
Smart coaching features

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Top 10 Best Ketone Breath Meters in 2026 Compared

This side-by-side comparison highlights the unique specifications and features of each top-rated breath meter to help you find the perfect fit for your tracking routine.

ProductsSpecificationsEditor scorePrice
1Ketone Breath Meter 0-99 PPM

Best Budget

Ketone Breath Meter 0-99 PPM
0-99 PPM range
Six display ranges
Strip-free testing
10 mouthpieces included
4.5Editor score

Check price

2KETOSCAN Mini V2 Breath Meter

Editor's Choice

KETOSCAN Mini V2 Breath Meter
Free app included
Lithium-ion battery
Built-in display
3-second test time
4.0Editor score

Check price

3Ketosis Meter for Ketosis Testing

Editor's Choice

Ketosis Meter for Ketosis Testing
6 level guidance
Color LCD display
32 memory records
AAA battery power
4.8Editor score

Check price

4Ketone Breath Meter Rechargeable

Ketone Breath Meter Rechargeable
0.1-10.0 mmol/L
Rechargeable battery
One-key operation
Reusable sensor
4.6Editor score

Check price

5Breath Ketone Meter Strip-Free

Breath Ketone Meter Strip-Free
Type-C rechargeable
Clear PPM trends
Portable design
Pop-out breath port
4.4Editor score

Check price

6Breath Ketone Meter USB-C

Breath Ketone Meter USB-C
64-reading memory
USB-C charging
Mouthpiece-free intake
Guided start breath
5.0Editor score

Check price

7Ketone Breath Meter Portable

Ketone Breath Meter Portable
mmol/L display
5-second test
No strips required
Compact solution

Check price

8Ketone Breath Analyzer Professional

Ketone Breath Analyzer Professional
64 memory records
1000mAh battery
6 level guidance
4 color LCD
4.6Editor score

Check price

9AI Ketone Meter Breath Analyzer

AI Ketone Meter Breath Analyzer
Bluetooth AI app
900mAh battery
Smart coaching
50-80 tests
4.4Editor score

Check price

10Ketone Breath Meter Digital

Ketone Breath Meter Digital
0.14 lbs weight
mmol/L measurement
Digital tracking
Under 5 seconds
5.0Editor score

Check price

1. Ketosis Meter for Ketosis Testing – Best Overall Ketone Breath Meter

Ketosis Mete for Ketosis Testing - Professional Ketosis Breath Analyzer Home Ketone Breath Meter High Accuracy Ketosis Breath Tester with 10 Mouthpieces4.8Editor scoreCheck price on Amazon
Ketosis Meter for Ketosis Testing
0-99 PPM range
32 memory records
Color LCD display
5-second test time

The Ketosis Meter stands out as a top-rated choice for personal ketone monitoring with a solid 4.8 rating. It offers a straightforward way to track breath acetone levels without the hassle of blood or urine testing. The device is designed for daily routine checks at home or on the go.

Pros

  • High accuracy sensor
  • Easy to read display
  • Cost-effective reusable device
  • Simple operation process

Cons

  • Requires AAA batteries
  • No app connectivity

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Its standout feature is the color-coded LCD display that visually indicates ketosis levels from white to red. Users can store up to 32 memory records to track trends over time without needing a smartphone app. The high sensitivity sensor ensures reliable readings when testing under consistent conditions.

While it requires AAA batteries and lacks app connectivity, these trade-offs keep the device affordable and simple to use. The need to blow for 5-6 seconds consistently might be a minor adjustment for new users but ensures accurate sampling. The 10 included mouthpieces support hygiene for household use.

This meter is ideal for anyone seeking a reliable, cost-effective tool to verify ketosis without expensive ongoing strip costs. The memory function helps track progress independently. It is a strong recommendation for users prioritizing accuracy and simplicity over smart features.

Visual Feedback System

The color-coded display uses white green yellow and red lights to instantly communicate ketosis levels to the user without interpretation.

Memory Tracking Feature

Storing up to 32 readings directly on the device allows users to review past trends without needing external apps or phones.

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2. Ketone Breath Meter 0-99 PPM – Best Budget Ketone Breath Meter

Ketone Breath Meter, 0-99 PPM, 6 Reading Ranges4.5Editor scoreCheck price on Amazon
Ketone Breath Meter 0-99 PPM
0-99 PPM range
Six display ranges
Strip-free testing
10 mouthpieces included

This budget-friendly option offers a practical solution for tracking breath acetone without the cost of continuous strip purchases. It features six distinct display ranges to help users understand their PPM readings easily. The device is lightweight and fits well in a travel organizer or home drawer.

Pros

  • Very affordable price point
  • Clear six range display
  • No strips required
  • Compact portable size

Cons

  • No memory storage
  • Batteries not included

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The six-range display organizes results from 0-2 PPM up to 60-99 PPM providing clear visual bands without complex numbers. It uses mouthpiece-contact sampling to ensure hygiene and accurate intake. The status lights help users know when a reading is complete or if there are battery issues.

Lacking internal memory storage means users must manually note results for trend tracking. Batteries are not included which adds a small upfront task before first use. However these limitations are acceptable given the low price point and strip-free convenience for daily checks.

This model is perfect for users who want a simple entry-level tool to check ketosis trends regularly. It is highly recommended for those on a tight budget who still want reliable breath-based data. Its simplicity makes it accessible for anyone starting their keto journey.

Six Range Organization

The display splits readings into six bands so users can see where they fall on the ketosis scale at a glance.

Portable Design

Its compact form factor ensures you can carry it in a bag or desk drawer for easy access during routine checks.

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3. AI Ketone Meter Breath Analyzer – Best Premium Ketone Breath Meter

AI Ketone Meter – Ketosis Breath Analyzer with Rechargeable Bluetooth, 5 Mouthpieces, High Accuracy, Professional Ketosis Meter, APP Tracking and Smart Coaching for Keto Diet4.4Editor scoreCheck price on Amazon
AI Ketone Meter Breath Analyzer
Bluetooth AI app
Smart coaching features
Professional grade sensor
50-80 tests

This premium device combines advanced sensor technology with a smart app to deliver personalized feedback on your ketosis journey. It connects via Bluetooth to offer trend charts and recipe recommendations that align with your test results. The professional grade sensor ensures stable readings within seconds of testing.

Pros

  • Advanced AI app integration
  • Personalized coaching tips
  • Rechargeable battery life
  • Fast stable readings

Cons

  • Higher price point
  • Requires smartphone pairing

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The AI assistant interprets results to provide context on what the readings mean for your diet and fat burning progress. It supports over 50 tests on a single charge which is excellent for regular users who test daily. The device is lightweight and fits easily into a pocket.

While the higher price may be a barrier for some, the included smart coaching adds significant value compared to basic meters. Users must have a smartphone and be comfortable with Bluetooth pairing which might not suit everyone. However the insights gained justify the investment for serious followers.

Ideal for tech-savvy users who want detailed data and guidance beyond simple numbers. The app tracking helps visualize long term trends effectively. We recommend this for those looking to optimize their diet with intelligent feedback and personalized meal suggestions.

Smart Coaching App

The companion app not only tracks data but also suggests recipes and adjustments to help you reach your goals faster.

Battery Efficiency

With up to 80 tests per charge you can use the device for months without needing to plug it in frequently.

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4. KETOSCAN Mini V2 Breath Meter – Fast App Integrated Option

KETOSCAN Mini V2 Breath Ketone Meter | Portable Ketosis Monitor, Free App4.0Editor scoreCheck price on Amazon
KETOSCAN Mini V2 Breath Meter
Free app included
Lithium-ion battery
Built-in display
3-second test time

The KETOSCAN Mini V2 is designed for quick and pain-free testing with results available in just three seconds. It pairs with a free app on iOS and Android to log weight and meal photos alongside your ketone readings. The built-in display shows results directly even without a phone connection.

Pros

  • Very fast test time
  • Free app without subscription
  • Portable lithium-ion power
  • Fat burning tracking

Cons

  • Lower user rating average
  • Limited memory without app

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Users can track weekly and monthly trends through the app which helps adjust meals or fasting routines based on real data. The lithium-ion battery supports all-day use making it reliable for active lifestyles. It aims to help you find your optimal ketosis zone efficiently.

Some users report variability in results which may require consistent testing conditions to ensure accuracy. Without the app the memory is limited compared to other models with onboard storage. The fast speed is a major plus but consistency remains key for reliable tracking.

This meter is best suited for those who want a balance of speed and digital tracking without recurring costs. The free app adds value by integrating lifestyle data. It is a solid choice for daily monitors who need quick feedback.

Instant Readings

A test time of only three seconds makes it one of the quickest devices available for regular daily checks.

Data Integration

The app allows you to log weight and meal photos so you can see how different inputs affect ketosis levels.

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5. Ketone Breath Meter Rechargeable – Simple Operation Option

Ketone Breath Meter, Rechargeable Battery Ketosis Tester, Helps You Enter Ketosis Easily(mmol/L)4.6Editor scoreCheck price on Amazon
Ketone Breath Meter Rechargeable
0.1-10.0 mmol/L
Rechargeable battery
One-key operation
Reusable sensor

This model focuses on simplicity with a one-key operation that makes testing effortless for daily users. It displays readings in mmol/L and includes a backlight for easy visibility in low light. The rechargeable battery ensures you do not need to buy disposable batteries frequently.

Pros

  • Cost-effective reusable sensor
  • Rechargeable battery life
  • Clear LCD backlight
  • Compact portable design

Cons

  • mmol/L only display
  • No memory storage

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The long-lasting sensor can be used for thousands of tests reducing waste and ongoing costs. Its lightweight design allows for convenient testing anywhere whether at home or traveling. The discreet design ensures privacy when checking ketone levels in public spaces.

Lacking onboard memory means you must track trends manually unless you keep personal notes. The mmol/L unit is standard for blood meters but breath meters often use PPM so users should be aware. However the ease of use compensates for these minor limitations.

It is a great choice for users who want a reliable and simple device without complex features. The rechargeable feature makes it economical over time. We recommend it for those prioritizing basic functionality and portability.

Sensor Durability

The reusable sensor is built to last thousands of tests which reduces environmental impact and long term costs.

Backlight Display

An LCD with backlight ensures you can read results clearly even in dim lighting conditions.

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6. Breath Ketone Meter Strip-Free – Portable Rechargeable Option

Breath Ketone Meter, Breath Acetone PPM Keto Tester, Strip-Free Ketosis Tracker, Type-C Rechargeable Portable Monitor for Keto, Fasting & Low-Carb Routines4.4Editor scoreCheck price on Amazon
Breath Ketone Meter Strip-Free
Type-C rechargeable
Clear PPM trends
Portable design
Pop-out breath port

This meter offers a clean and convenient way to track PPM trends without handling blood or urine. A pop-out breath port protects the testing area between uses ensuring hygiene. The Type-C rechargeable battery supports daily use without needing disposable power sources.

Pros

  • No strips required
  • Type-C charging port
  • Lightweight portable
  • Clean breath checks

Cons

  • Limited memory features
  • Manual tracking needed

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The device is designed specifically for morning checks or post-workout reviews to compare daily trends. You can test before meals or after low-carb routine changes to see how your body responds. The simple one-button control makes operation straightforward for anyone.

It lacks advanced memory features meaning you must rely on visual checks or a notebook for historical data. The focus is on immediate trend reference rather than deep data analysis. However the portability and cleanliness make it ideal for travel.

This is a solid choice for users who want to avoid strips and mess while staying mobile. It fits easily in a gym bag or kit. We recommend it for those who prioritize convenience and daily routine checks.

Breath Port Protection

The pop-out port covers the sensor when not in use keeping the device clean and protected from dust.

Type-C Charging

Modern Type-C charging ensures you can use the same cable as your phone for convenient recharging.

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7. Breath Ketone Meter USB-C – Best On-Device Memory Option

Breath Ketone Meter, USB-C Rechargeable, 64-Reading Memory5.0Editor scoreCheck price on Amazon
Breath Ketone Meter USB-C
64-reading memory
USB-C charging
Mouthpiece-free intake
Guided start breath

This device stands out with a 64-reading memory that lets you track trends directly on the unit without an app. It uses a USB-C rechargeable battery for long-term use without extra costs. The mouthpiece-free intake reduces the need to buy replacements regularly.

Pros

  • High memory capacity
  • USB-C rechargeable
  • Mouthpiece-free design
  • High user rating

Cons

  • No app connectivity
  • Manual start guide

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The guided start process ensures you take a steady breath for accurate results consistently. You can review saved history to compare patterns across weeks. This helps create a consistent testing routine without touching the air inlet to your lips.

Without app connectivity you cannot sync data to a phone which may limit deep analysis. However the local memory is sufficient for most users who track manually. The high rating reflects strong satisfaction with accuracy and design.

This meter is ideal for users who want storage but prefer simplicity over smart features. The memory capacity is generous for a standalone device. We recommend it for those who prioritize data retention without digital complications.

Large Memory Storage

Saving up to 64 readings allows you to view long-term trends without needing an external device or app.

No Mouthpiece Cost

The mouthpiece-free design means you do not need to buy replacements which saves money and reduces waste.

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8. Ketone Breath Meter Portable – Quick Test Option

Ketone Breath Meter Portable
mmol/L display
5-second test
No strips required
Compact solution

This portable analyzer delivers ketone readings in about five seconds making it efficient for quick checks. It measures in mmol/L and requires no strips or blood samples. The compact size makes it easy to maintain a ketogenic lifestyle on-the-go.

Pros

  • Fast five second test
  • No ongoing costs
  • Compact size
  • Clear display

Cons

  • No rating data
  • Limited features

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Users can blow into the device to get a reliable indication of their metabolic state. The high-sensitivity sensor tracks levels consistently. Since there are no ongoing costs for strips it offers an economical solution for regular tracking.

With no public rating data it is hard to assess reliability compared to other models. Features are basic which may limit advanced tracking needs. However it remains a practical tool for basic monitoring without discomfort.

It is a good choice for those wanting a fast and simple tool for daily checks. The absence of recurring costs is a major benefit. We recommend it for users prioritizing speed and simplicity.

Quick Feedback

Getting results in five seconds means you spend less time testing and more time managing your day.

Economic Value

A one-time purchase eliminates the need for expensive test strips making it a budget-friendly solution.

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9. Ketone Breath Analyzer Professional – Long Battery Life Option

Ketone Breath Analyzer Professional Rechargeablel Ketone Breath Meter Portable Digita Ketone Breath Tester with 10 Replaceable Mouthpieces for Ketogenic Diet Testing with 10 Mouthpieces, White4.6Editor scoreCheck price on Amazon
Ketone Breath Analyzer Professional
64 memory records
1000mAh battery
6 level guidance
4 color LCD

This model features a large 1000mAh rechargeable battery that supports over 500 tests on a single charge. It stores 64 memory records and uses a color LCD for visual feedback on ketosis levels. The device includes 10 replaceable mouthpieces for hygiene.

Pros

  • Long battery life
  • 64 memory records
  • Color LCD display
  • Cost-effective

Cons

  • Manual operation
  • No app sync

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The 6-level guidance helps interpret results from no ketosis to ketoacidosis using color indicators. You can review past results on the device to track progress over time without a phone. It is suitable for regular users who want consistent tracking.

Without app connectivity you must rely on manual comparison for trends. The battery life is excellent but charging may be needed every few months depending on frequency. The color display makes it easy to read at a glance.

This is a strong contender for those who need a reliable standalone device with good storage. The long battery life reduces maintenance. We recommend it for users who prefer local data management.

Battery Longevity

A 1000mAh battery provides enough power for over 500 tests meaning you charge it infrequently.

Visual Feedback

Four LCD display colors indicate different ketosis levels helping you interpret results without reading numbers.

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10. Ketone Breath Meter Digital – Lightweight Precision Option

Ketone Breath Meter, Digital Ketosis Tester for Accurate Ketone Level Measurement via Breath, No Blood or Urine Strips(mmol/L)5.0Editor scoreCheck price on Amazon
Ketone Breath Meter Digital
0.14 lbs weight
mmol/L measurement
Digital tracking
Under 5 seconds

This digital tester is extremely light weighing only 0.14 lbs making it easy to carry in any bag or pocket. It uses advanced sensor technology to provide precise readings in seconds. The device focuses on delivering fast stable readings for daily metabolic state tracking.

Pros

  • Extremely lightweight
  • Accurate sensor
  • Fast results
  • Digital tracking features

Cons

  • Small screen size
  • Limited details

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You can monitor trends digitally to make informed decisions about your diet and wellness goals. The high-sensitivity sensor detects low concentrations reliably. It helps scientifically adjust your diet to maintain optimal ketosis without blood tests.

While the screen is small the clear digital output ensures accuracy. The lack of detailed memory features is a minor trade-off for its portability. It is designed for effortless daily use without complex procedures.

This meter is perfect for those who value precision and minimal weight in a portable device. The simplicity supports informed decisions. We recommend it for users prioritizing accuracy and convenience.

Ultra Light Design

Weighing only 0.14 lbs this device is easy to carry anywhere without adding bulk to your kit.

Fast Testing

Results are delivered in under five seconds allowing you to test quickly and continue your routine.

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Buying Guide – How to Choose the Best Ketone Breath Meters

Selecting the right breath meter involves evaluating several factors to ensure accuracy and ease of use.

Sensor Technology

Most meters use semiconductor sensors that detect acetone in your breath. Higher sensitivity sensors provide more accurate results especially at lower levels. Look for units with consistent performance reviews to ensure reliable data.

Choose a device with a reputable sensor to avoid false readings that could mislead your diet adjustments.

Measurement Units

Devices display readings in PPM or mmol/L. PPM measures parts per million while mmol/L is molar concentration. Ensure you understand the unit to interpret results correctly.

Consistency in units helps you track progress effectively over time without confusion.

Memory and Storage

Some meters store readings internally allowing you to review past results on the device. Others require apps to save data. Onboard memory is useful if you prefer to avoid apps.

Select memory capacity that fits your tracking needs whether daily or weekly logging.

Battery Life

Rechargeable batteries offer convenience while disposable batteries are simple to replace. Consider how often you test to choose a power source that suits your routine.

Long battery life ensures you do not interrupt testing due to power issues.

Portability

Lightweight and compact devices fit easily into travel bags or pockets. This allows testing anywhere whether at home or in a gym.

Portability is key if you plan to test during travel or outside the home regularly.

Additional Features

Apps and coaching features can provide deeper insights into your progress. These are useful for users who want data trends and recipe suggestions.

Basic displays are sufficient for simple checks if you do not need smart integration.

Cost and Durability

Avoid models that require disposable strips to save money long term. Ensure the device is durable enough for daily use.

A one-time purchase model is usually more economical than strip-based testers.

How to Use and Care for Your Ketone Breath Meters

Before first use allow the device to charge fully if rechargeable and let the sensor warm up for 30 to 60 seconds. This ensures the initial reading is accurate and the sensor is active.

When testing exhale steadily into the mouthpiece or intake port for the recommended time usually 5 to 6 seconds. Keep your breath steady to ensure the sensor captures enough sample for a precise reading.

Store the device in a dry place away from direct sunlight. Replace mouthpieces regularly to maintain hygiene and avoid cross-contamination. Follow manufacturer instructions for cleaning the intake port.

Frequently Asked Questions

How accurate are breath ketone meters compared to blood tests?

Breath meters detect acetone which is a byproduct of fat burning while blood tests measure beta-hydroxybutyrate. Breath readings are reliable for general trends but may not match exact blood levels. They are best for tracking daily progress consistently.

Do breath meters require test strips?

No modern breath ketone meters do not require test strips. They use built-in sensors to detect acetone in your breath repeatedly. This makes them more economical over time compared to urine or blood strip-based testers.

How long does it take to get a reading?

Most devices provide results within 3 to 10 seconds after you blow into the intake. The exact time depends on the model and sensor speed. Always wait for the device to signal it is ready before testing.

Can breath meters be used with kids?

While safe the primary users are adults on keto or fasting routines. Ensure children follow instructions carefully to blow steadily. Consult a health professional before giving any metabolic device to minors.

What affects breath ketone readings?

Eating drinking smoking or brushing teeth can change breath chemistry and skew results. It is best to test in the morning before consuming anything. Consistent conditions help you compare trends accurately over time.

Are these devices FDA approved?

Most breath meters are wellness tools and not FDA approved medical devices. They are designed for personal tracking rather than diagnosis. Do not use them to replace professional medical advice or testing when required.

How often should I test with a breath meter?

Daily testing in the morning on an empty stomach provides the best trends. You can also test after meals or workouts to see how changes affect your state. Regular consistency helps build useful data patterns.

Final Thoughts on Choosing the Best Ketone Breath Meters

We highlighted ten top models offering features from basic affordability to smart AI coaching. Choosing depends on whether you value memory storage or simple portability.

Focus on the sensor technology and battery life to ensure reliable long-term use. Consider your tracking style if you prefer local memory or app integration.

Always verify current prices and product details before purchasing as availability may vary. These insights help you select the right tool for your wellness goals.