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Fasting sounds easy — you just stop eating — but how do you actually know whether your body is in the fasted state you are aiming for? That is where a fasting kit helps, but you need to pick the right type. Some kits give you hard data by measuring your blood glucose (blood sugar) and ketones (fat-burning molecules) with a small prick of blood. Other kits hand you pre-packed, plant-based meals so you can “fast with food” — eating low-calorie meals while keeping your body in a fasted metabolic state, without planning anything yourself. Your choice depends on if you need lab-grade numbers or a guided menu.
I’m Mohammad Maruf — the founder and writer behind WellFizz. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
The best fasting kits give you clear proof of what your body is doing during a fast, whether through blood data or a structured eating plan.
Our Picks at a Glance
How To Choose The Best Fasting Kits
Fasting kits fall into two camps: biometric testing kits that measure your blood glucose and ketones, and meal-based programs that provide low-calorie foods designed to keep your body in a fasting state. Your choice depends on if you need hard numbers or a structured eating plan.
Decide what you want to measure
A glucose meter tells you your blood sugar at a single moment — great for seeing how a meal or overnight fast affects your levels. A ketone meter adds data on whether you are in ketosis (your body burning fat for fuel), which is the whole point of a keto or extended fast. The Glucose Ketone Index (GKI) combines both into one number that serious trackers watch daily.
Check the strip count and cost
Test strips are the ongoing expense of any blood meter. A kit with 70 glucose strips and 70 ketone strips gives you roughly two to three months of daily testing, while a kit with 100 strips for glucose only is cheaper upfront but may require refills sooner. Meal-based kits give you everything in one box — no refills needed, but you use them up in one or five days.
Look at the rating and real owner feedback
A kit with thousands of reviews and a 4.4-star average is a safer bet than one with fewer than 200 ratings, even if the specs look similar. Real buyers report on accuracy, ease of use, and whether the strips actually last their full shelf life. That crowd feedback matters more than any single feature on the box.
Quick Comparison
| Model | Best For | Type | Strip Count | Rating | Amazon |
|---|---|---|---|---|---|
| KETO-MOJO GK+★ Best Overall | Dual glucose & ketone tracking | Bluetooth Meter | 140 strips (70 + 70) | 4.7 / 5 | Amazon |
| Metene TD-4116 | Budget-friendly glucose monitoring | Glucose Meter | 100 strips | 4.4 / 5 | Amazon |
| Prolon 1-Day Reset | Short guided fasting trial | Meal Kit | 1-day supply | 3.8 / 5 | Amazon |
| Prolon 5-Day Kit | Extended fasting with meals | Meal Kit | 5-day supply | 3.8 / 5 | Amazon |
In‑Depth Reviews
1. KETO-MOJO GK+ Glucose & Ketone Meter Kit, 140 Strips
Our pick — over 4.5★ from 500+ verified ratings; the strongest balance of quality and price.
The only kit here that measures both glucose and ketones with clinical accuracy used in over 100 trials.
The KETO-MOJO GK+ wins this guide because it is the only pick that tracks both glucose and ketones via a single Bluetooth meter, which means you can calculate your GKI (Glucose Ketone Index) — that ratio tells you at a glance if your body is truly in ketosis. The meter syncs wirelessly with the free MyMojoHealth app, so you can log your GKI over time and share the trends with your doctor or coach. It also integrates with Apple Health, Cronometer, and Carb Manager, putting your fasting data right next to your nutrition logs. Buyers call it “easy to use” and praise the “good accuracy,” with many noting how it reveals exactly how the previous day’s diet affects fasting blood sugar the next morning — a concrete feedback loop no meal kit can offer.
The 140-count bundle includes 70 glucose test strips and 70 ketone test strips, plus a lancing device, 20 sterile lancets, control solutions, and two AAA batteries already installed. The strips are foil-wrapped for sterility and printed with a best-by date. Accuracy is the most-praised aspect, with 31 buyers singling it out, followed closely by ease of use at 24 mentions. That is a stronger accuracy consensus than the Metene TD-4116’s glucose-only crowd. The honest trade-off is the ongoing cost of strips — several owners note they are expensive — but the consensus is that the high quality and trustworthy results justify it. A buyer even bought a second unit for a family member, which is about as strong a real-world endorsement as you will find. The crowd favorite holds a strong 4.7 stars across 500+ ratings.
What wins people over
- Dual glucose and ketone testing gives you the full metabolic picture in one device
- Bluetooth syncs readings straight to Apple Health and other apps without manual logging
- Clinically validated and used in over 100 clinical trials — real scientific backing
- Lifetime warranty on the meter after you register it
The trade-off to know
- Test strips cost more than basic glucose-only strips, and the 140-count will eventually need a refill
- You need to be comfortable with finger-prick blood sampling twice per test (glucose + ketone)
Who it fits: Anyone on a keto, carnivore, or extended fasting routine who wants daily proof they are in ketosis and a clear record of how food choices shift their numbers.
Who might pass: People who only need a basic blood sugar check without ketone data — a simpler glucose-only meter will cost less to run.
2. Metene TD-4116 Blood Glucose Monitor Kit, 100 Strips
A complete glucose monitoring kit that includes everything — strips, lancets, control solution, and a carrying case — at a fraction of the cost.
If your goal is tracking blood sugar alone (not ketones), the Metene TD-4116 is the value king for a reason. The meter uses a no-coding design — just insert a test strip and it is ready to go — and it needs only a tiny 0.7 microliter blood sample. Results appear in 7 seconds. The display is larger than most glucose monitors, making the numbers easy to read for older adults. Four daily reminder alarms can be set to prompt testing, and the device stores up to 450 readings with continuous 14/21/28/60/90-day averages. Buyers sum it up in their own words: “Great price for this sensor package” and “Everything you need.”
Compared to the KETO-MOJO, which holds a 140-strip count, the Metene includes 100 glucose strips but no ketone strips. What it lacks in dual testing it makes up for in completeness: the box contains 100 lancets, a lancing device, control solution, two batteries, and a zippered bag. One long-term owner noted that the software supports data upload, notes, and trend plots, though individual data points cannot be erased from the meter. The real-world consensus is clear: this is a reliable, affordable kit that does its one job — blood sugar tracking — very well.
Why it stands out
- 100 test strips plus 100 lancets and control solution mean you are set for months without buying extras
- Large, clear display is genuinely easier for older eyes to read in any light
- No coding required — insert strip, get a result in 7 seconds
- 4 reminder alarms help maintain a testing schedule without phone alerts
The honest limit
- Glucose-only — you get no ketone data, so you cannot confirm ketosis
- Some buyers reported a batch of strips reading slightly high, though the majority found accuracy reliable
Reach for this if: You need a straightforward, no-fuss blood sugar monitor for diabetes management or general health tracking and want the best strip-per-dollar value.
Look elsewhere if: You are on a ketogenic or fasting protocol that requires daily ketone readings — you need the dual-meter capability of the KETO-MOJO.
3. Prolon 1-Day Reset Fasting Kit
A single-day meal plan designed to keep your body in a fasting state while you eat plant-based soups, bars, and snacks.
This is the “dip your toes in” option — one day of pre-portioned, low-calorie foods that are meant to support ketosis without requiring you to go zero-calorie. The kit includes soups (Green Pea & Chives, Chickpea & Leeks), nut bars, olives, crackers, drinks, and supplements, all packed into a single box. Owners mention real results even in that short window: “lost 3 lbs, less inflamed by day 3, improved sleep on night 3.” The appeal is the structure — no meal prep, no counting calories, just open the box and follow the day’s menu. The downside that comes up most is the lack of variety; some find the same soup flavors repetitive, especially compared to the 5-day kit which rotates more options.
The Prolon 1-Day kit has a 3.8-star average from 180 ratings. It sits at a different price tier than the blood-testing meters above — roughly on par with the Metene kit — but serves a completely different purpose. This is not a measurement tool; it is a meal system. If you want to try a fasting-mimicking protocol but are not ready to commit to a full week, this one-day box gives you a low-risk trial run. Just be prepared for the same menu each time you use it, since the kit is identical every day.
What owners love: Several report feeling less inflammation and seeing the scale move after just one day, which is a strong motivator to try a longer fast.
The one caution: A kit was reportedly delivered missing the L-bar supplement in one box, so inspecting the contents right away is smart.
Who it works for: Someone curious about fasting-mimicking diets who wants a single-day test run before buying a longer program.
Who should skip: If you already know you want to fast for several days, the 5-day kit offers better variety and a higher value per day.
4. Prolon 5 Day Fasting Kit
A full five-day, pre-packaged fasting program with daily boxes so you never have to decide what to eat.
This is the real commitment — five individually packed days of plant-based meals, snacks, drinks, and supplements designed to support a fasting state without total calorie restriction. The soups rotate through Minestrone, Tomato, Mushroom, Vegetable, and Minestrone Quinoa, plus you get kale crackers, nut bars, olives, herbal teas, and the L-Drink. Each day’s box is labeled and self-contained, so there is zero meal prep or calorie counting. Customers note tangible outcomes: one lost “6.7 lbs visceral fat” and “2.3 inches waist” while preserving lean mass, and another noted “improved energy” and “mental clarity.” The review pages sum it up: pre-packaged convenience with an effective reset, though the soups can feel repetitive by day four.
At 3.8 stars across 399 ratings, this kit shares the same average rating as the 1-Day Reset but with more owner experiences behind it. The biggest difference between the two Prolon kits is duration and variety — the 5-day offers more food variety day-to-day, which is the exact thing the 1-day reviewers wished they had. One tall buyer (6’4″, 260 lbs) reported feeling satisfied and not hungry during the five days, which speaks to the satiety of the bar-and-soup combo. The honest caution is packaging: a few units arrived with a broken seal or damaged contents, so checking the box on delivery is wise. For a guided, science-backed fasting experience that removes all the guesswork, this is the most complete option available.
Best part: The five-box system makes it nearly impossible to cheat or forget a meal — grab the day’s box and go.
Trade-off: It is a premium investment for a single-use program, and you cannot reuse it without buying another kit.
Grab this if: You want a structured, research-backed fasting reset that lasts a full workweek and includes actual food you can look forward to eating.
Pass if: You prefer to design your own fast with whole foods or need a reusable solution — this is a one-and-done kit.
Understanding the Specs
Glucose vs. Ketone Measurement
A glucose meter tells you your blood sugar level at that moment — important for diabetics and anyone wanting to see how a meal affects their numbers. A ketone meter measures beta-hydroxybutyrate (a type of ketone body) in your blood, which confirms you are in ketosis (your body burning fat for fuel). Some dual meters do both, and the Glucose Ketone Index (GKI) — a ratio of the two numbers — is the single metric many fasting enthusiasts track to see if their body is truly running on fat.
Fasting-Mimicking Meal Kits
These are not traditional fasts where you consume nothing but water. Instead, they provide between roughly 700 and 1,100 calories per day from plant-based foods, designed to keep your body in a fasted metabolic state. The science behind them is designed to support cellular renewal and healthy aging while you still get to eat. The trade-off is that you cannot reuse the kits — each box is a single-use program, and the foods are pre-selected with no customization.
FAQ
Do I need both a glucose and ketone meter, or is one enough?
Can I reuse the Prolon 5-day kit after finishing it?
How many test strips come with the KETO-MOJO GK+ kit?
Is the Metene TD-4116 good for older adults who struggle with small screens?
Will the KETO-MOJO app share data with my doctor?
How long does the 1-day Prolon kit take to ship, and does it need refrigeration?
Can I test my blood sugar without coding a meter?
How many blood samples does the KETO-MOJO require per test session?
Which kit has more reviews and a higher rating — the KETO-MOJO or the Metene?
Will the Prolon 5-day kit help with weight loss?
Final Thoughts: The Verdict
For most people looking for fasting kits, the pick that delivers the clearest daily proof of what your body is doing is the KETO-MOJO GK+ — it tracks both glucose and ketones with clinical accuracy, syncs to your phone, and has a strong 4.7-star consensus from owners. If you need an affordable, complete blood glucose monitor for daily sugar checks, the Metene TD-4116 offers huge value with 100 strips and all the accessories included. And for a structured, meal-based fasting experience, the Prolon 5 Day Kit removes all the guesswork with daily boxes and five days of pre-planned plant-based meals.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, WellFizz earns from qualifying purchases. This does not affect which products we feature.
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Mo Maruf
I created WellFizz to bridge the gap between vague wellness advice and actionable solutions. My mission is simple: to decode the research and give you practical tools you can actually use.
Beyond the data, I am a passionate traveler. I believe that stepping away from the screen to explore new environments is essential for mental clarity and physical vitality.