GlucoSpike AI
You have your Dexcom.
You can see your glucose.
Now find out which food caused that spike.
Dexcom G7 tells you what your glucose is doing in real time.
It does not tell you which ingredient in your last meal was responsible — or predict impact before your next one.
GlucoSpike is the pre-meal food intelligence layer that completes your Dexcom stack. Snap a meal, get a Minor / Moderate / Major Impact score, and see which ingredient to swap — before you take a bite. No CGM pairing needed. No conflicts. Just smarter food decisions.
Add Food Intelligence to Your Dexcom Setup7-day free trial · No credit card required · Works with any CGM
Dexcom shows you what happened. It doesn't tell you what to do before it happens.
Dexcom G7 and Clarity are excellent at what they do: real-time glucose tracking, historical reports, and showing you the glucose curve after a meal. In 2025, Dexcom added Smart Food Logging — photo-based food identification that links a logged meal to its glucose outcome afterward. That's a meaningful step forward.
What Dexcom still does not offer is pre-meal prediction — the ability to score a meal before you eat it, identify which individual ingredient is the high-impact item, and suggest a specific swap before the spike occurs. That is the gap GlucoSpike fills.
No pre-meal Impact Score
Dexcom's Smart Food Log shows you what your glucose did after a meal. It does not tell you whether this meal is Minor, Moderate, or Major Impact before you take the first bite — so you can't adjust the meal while you still have the chance.
No ingredient-level color coding
Your plate of rice, chicken, and sauce looks like one food event in Dexcom. GlucoSpike breaks it down: green for the chicken, amber for the sauce, red for the white rice. You know exactly which item to reduce or swap.
No swap suggestions
When a meal scores high, Dexcom doesn't tell you what to change. GlucoSpike offers specific substitutions: swap white rice for cauliflower rice, add a protein, reduce the portion of the identified spike trigger.
No Minor / Moderate / Major rating
Dexcom shows you a glucose curve. GlucoSpike gives you a plain-language score — Minor, Moderate, or Major Impact — so you know at a glance whether this meal is safe, borderline, or one to rethink.
Works even when your sensor expires
Between sensor changes — or if your sensor falls off — GlucoSpike still works. Pre-meal scoring is independent of your CGM hardware. You always have food intelligence, even when your Dexcom is offline.
How GlucoSpike completes your Dexcom stack
Two tools. Two jobs. No conflicts.
Dexcom G7 + Clarity
Real-time glucose monitoring
- •Live glucose readings every 5 minutes
- •High and low alerts
- •Historical glucose reports via Clarity
- •Post-meal glucose curves
- •Smart Food Log: what you ate, what happened after
GlucoSpike AI
Pre-meal food intelligence
- ✓Impact Score before you eat (Minor / Moderate / Major)
- ✓Ingredient color coding: green, amber, red
- ✓Predicted glucose curve for the next 2.5 hours
- ✓Specific swap suggestions before you eat
- ✓Weekly Insight Card: patterns and top spike trigger
The workflow: Snap your meal in GlucoSpike before eating. Get your Impact Score. Adjust if needed — swap an ingredient, add protein, reduce portion. Eat. Then check your Dexcom to see your actual glucose response. Over time, both signals together build your personal food playbook.
The Dexcom + GlucoSpike workflow
Before, during, and after every meal — your full picture.
Before eating
Snap your meal in GlucoSpike
Open GlucoSpike, take a photo of your plate (or type it with Quick Log). Within seconds you get a Minor, Moderate, or Major Impact Score plus ingredient color coding — green, amber, red — so you can see exactly which item is the spike risk before you commit to eating it.
Before eating
Adjust if needed — then eat
If GlucoSpike flags Major Impact, check the swap suggestion: maybe it's the white rice (red) and switching to a half-portion with added protein drops you to Moderate. Make the call, then eat. You've already acted before the spike could happen.
After eating
Check Dexcom to see the actual response
About 60–90 minutes later, open your Dexcom G7 app or Clarity. See your actual glucose curve. Did it match GlucoSpike's prediction? If the spike was smaller than expected, the swap worked. If it was higher, that's new data — you've learned something real about how your body handles that meal.
Over time
Build your personal food playbook
After a few weeks, GlucoSpike surfaces your Weekly Insight Card: your average Impact Score, your trend vs last week, and your most repeated spike trigger. Your Dexcom Clarity history shows corroborating glucose trends. Together, these two data streams give you a complete picture no single app can provide alone.
What GlucoSpike adds to your Dexcom toolkit
Features built specifically for the food decision moment your CGM can't reach.
Pre-meal Impact Score
Minor, Moderate, or Major — the same terminology Libre Assist popularised. Know your meal's likely glucose impact before you take the first bite.
Ingredient color coding
Every ingredient on your plate is rated green (low), amber (moderate), or red (high glucose impact). You know which specific item to reduce or swap — not just that the meal scored high.
Predicted glucose curve
A 2.5-hour forecast of what your glucose is likely to do after this meal. Pre-meal intelligence, not post-meal explanation.
Swap suggestions
If your meal scores Moderate or Major, GlucoSpike suggests specific substitutions: swap the item, reduce the portion, or add a protein to change the impact profile.
Weekly Insight Card
Your average Impact Score for the week, your trend vs the previous week, and your top spike trigger — surfaced automatically so you don't have to dig through a log.
Photo logging and Quick Log
Snap a photo and AI scores it in seconds. No sensor, no pairing. Type what you ate with Quick Log for even faster logging between meals.
Barcode scanner
Scan packaged foods to get an instant Impact Score. Useful for snacks and packaged items where you can't photograph a plated meal.
Works between sensor changes
When your Dexcom sensor expires, is between changes, or falls off — GlucoSpike still works. Pre-meal food intelligence is never gated by your CGM hardware.
Post-meal logging vs pre-meal intelligence
Both are valuable. They answer different questions at different moments.
| Capability | Dexcom / Clarity | GlucoSpike |
|---|---|---|
| Real-time glucose reading | ✅ | — |
| High / low glucose alerts | ✅ | — |
| Post-meal glucose curve | ✅ | — |
| Food photo logging | ✅ (2025+) | ✅ |
| Pre-meal Impact Score (before eating) | ❌ | ✅ |
| Minor / Moderate / Major rating | ❌ | ✅ |
| Ingredient color coding (green/amber/red) | ❌ | ✅ |
| Predicted 2.5-hour glucose curve | ❌ | ✅ |
| Swap suggestions before eating | ❌ | ✅ |
| Weekly spike pattern summary | ❌ | ✅ |
| Works without CGM sensor | ❌ | ✅ |
| Barcode scanner for packaged foods | ✅ (2026+) | ✅ |
| Requires CGM hardware | ✅ Required | ❌ Not required |
Dexcom features shown reflect G7 and Clarity as of mid-2026. Both products continue to evolve.
You had Libre Assist. Dexcom doesn't have that. GlucoSpike brings it back.
Libre Assist — built into the FreeStyle Libre app — scores meals Minor, Moderate, or Major Impact before you eat, shows a predicted glucose curve, and suggests ways to reduce a meal's impact. It is one of the most useful pre-meal features in any CGM ecosystem.
When you switch to Dexcom G7 — often for cost reasons, since Dexcom G7 is covered free by many insurance plans — Libre Assist doesn't come with you. Dexcom's Smart Food Log is useful, but it works after the meal, not before it. That pre-meal intelligence gap is exactly what GlucoSpike was built for.
Same scoring language
Minor / Moderate / Major Impact — the same terminology you relied on in Libre Assist, now independent of any CGM.
Same pre-meal moment
Score your meal before you eat it. Make the adjustment. Then check your Dexcom for actual confirmation.
No hardware lock-in
GlucoSpike works regardless of which CGM you use — or whether your sensor is currently active.
Common questions from Dexcom users
What app should I use with Dexcom G7?
Most Dexcom G7 users run a stack: Dexcom G7 for live readings, Clarity for historical reports, and GlucoSpike for pre-meal food intelligence. GlucoSpike scores your meal before you eat — something neither Dexcom G7 nor Clarity currently provides — so you can adjust the meal while you still have the chance.
Does Dexcom have food insights or meal impact scoring?
Dexcom introduced AI-powered Smart Food Logging in 2025. It identifies food from a photo and shows how a meal affected your glucose after eating. What it does not yet offer is pre-meal prediction, Minor/Moderate/Major scoring, ingredient-level color coding, or swap suggestions before you eat. GlucoSpike fills that specific gap.
Does GlucoSpike work with Dexcom G7, G6, or Stelo?
Yes. GlucoSpike requires no pairing with your CGM. It runs independently on your phone and scores meals from photos or text. Use your Dexcom app for real-time glucose — use GlucoSpike before meals for pre-eating decisions. No conflicts, no setup.
I switched from Libre to Dexcom and lost Libre Assist. Can GlucoSpike replace it?
GlucoSpike covers the same pre-meal intelligence job Libre Assist does: snap a meal, get Minor/Moderate/Major, see ingredient color coding, get a swap suggestion — all before eating. It works independently of any sensor, so it travels with you no matter which CGM you use.
What is the best meal tracking app for Dexcom users with prediabetes or insulin resistance?
For Dexcom users managing blood sugar, GlucoSpike AI adds what the Dexcom ecosystem lacks on the food decision side: pre-meal impact prediction, ingredient-level breakdown, swap suggestions, and weekly pattern insights. It complements Dexcom G7 and Clarity rather than replacing them.
What is Sugarmate, and how does GlucoSpike differ from it?
Sugarmate syncs your Dexcom readings and sends alerts, statistics, and remote monitoring — it is a glucose data companion. It does not score food or predict meal impact. GlucoSpike is entirely focused on the food side: what to eat, which ingredient is risky, and how to adjust before you take a bite.
Is GlucoSpike a replacement for my CGM?
No. GlucoSpike is a food intelligence tool; your Dexcom is a medical glucose sensor. They do fundamentally different jobs. GlucoSpike predicts likely impact of a meal before you eat it. Your Dexcom measures your actual glucose afterward. Most users find that having both creates a feedback loop that neither tool delivers alone.
Works alongside Dexcom G7, G6, and Stelo
Add food intelligence to your Dexcom setup.
Your Dexcom shows you what your glucose did. GlucoSpike shows you which ingredient caused it — and lets you act on that information before the next meal, not after.
7-day free trial. No CGM pairing required. No credit card needed.
7-day free trial · $29.99/year · Cancel anytime
GlucoSpike AI is not a medical device and is not affiliated with or endorsed by Dexcom. Always consult your healthcare provider about managing your glucose levels.