See exactly how your meals
affect your blood sugar.
Connect your CGM and insulin data, log what you eat, and spot the patterns that actually move your numbers — across weeks of real data, not just today.
Free to use. No ads. No credit card needed.
Log meals
~10 seconds each
Auto-sync data
CGM + insulin, automatically
See patterns
Meals + glucose over time
Step 1
Log a meal
in 10 seconds
Tap your meal
Quick Log shows your most-used meals front and center. One tap selects it — or add a new one and it's saved forever.
Add a photo (optional)
Snap the plate. GlucoLab AI can estimate carbs, protein, and fat from the photo — useful for understanding what's in meals you eat regularly.
Mark first bite time
One tap anchors the meal. GlucoLab uses it to line up your CGM trace automatically — so you can see exactly what your blood sugar did after that meal.
Over time, you'll see which meals consistently spike you — and which don't.
Pasta
1 Serving · 7:15 PM
Dexcom
CGM · Sign in once
Tandem
Insulin pump · Auto-sync
Nightscout
CGM + insulin · Any compatible pump
Last Auto-Sync
✓ ActiveStep 2
Connect your CGM
& insulin data.
Dexcom: Connect once, sync forever
Add your Dexcom credentials in Settings and GlucoLab automatically syncs your CGM readings. No manual uploads, no extra steps.
Taking insulin? Sync it automatically
Connect your Tandem pump or any Nightscout-compatible pump to auto-sync your insulin data alongside your CGM. Prefer injections? Log your daily doses manually instead — it only takes a few seconds.
Glucose + insulin + meals, all aligned
Every meal you log is automatically matched to your CGM readings and insulin events in that window. You see the full picture for every meal — no manual work.
Supported connections
NightscoutStep 3
Find the meals
that move your numbers
Every meal builds your glucose history
Each meal — with its full CGM curve — is saved. Over time, you build a detailed record of how your body responds to the foods you actually eat. Not generic glycemic index charts. Your real responses.
Per-meal metrics, every session
For each logged meal you'll see: peak glucose (how high you spiked), time in range (% of the window between 70–180), time to peak (how fast blood sugar rose after eating), duration above target (how long you stayed elevated), and time to return to baseline. Stacked across every time you've had that meal.
Patterns that only show up over weeks
GlucoLab surfaces the patterns you'd never spot meal to meal: which foods consistently push you above 180, whether the same meal behaves differently at breakfast vs. dinner, how fasting and overnight glucose has trended across the last 14 or 30 days, whether activity before or after a meal changes the outcome, and how insulin or medication timing shifts your curve.
AI puts it all in context
Premium members get AI analysis that draws on months of their data — not just last week. It connects meal responses, overnight trends, time-of-day patterns, and medication timing into clear, specific insights. The longer you use GlucoLab, the more it knows.
Pasta — 8 sessions
214 mg/dL
Avg Peak
58%
Avg TIR
92 min
Time to Peak
💡 Insight
Pasta causes late spikes consistently — blood sugar peaks 90 minutes after eating rather than 45. Consider pairing with protein or reducing portion size.
Share with your care team
Invite family members, caregivers, or your doctor. Everyone sees the same data — no screenshots, no re-explaining what happened last week.
Invite from Settings → Care Partners
They accept via email — takes one minute
Full access or read-only — you choose
Real-time sync — everyone always sees the same data
GlucoLab AI
PremiumAsk the AI anything about your patterns, log by voice, get personalized meal analysis, and receive a weekly digest built from months of your real data.
Voice logging — "chicken salad for lunch"
Ask why pasta spikes you, or what to try instead
Automatic meal scores after every window
AI Weekly Digest — months of patterns, plain English
Appointment Ready
Walk in with real data.
Not a vague sense of how the last few weeks went.
14 / 30 / 60-Day Reports
Glucose trends, meal outcomes, and pattern data — choose the window that fits your appointment.
Download as PDF
Export a formatted report to share with your primary care doctor, dietitian, or diabetes educator.
AI Weekly Digest
A plain-English summary of the week's patterns — great for starting the conversation. Premium feature.
Start free. Upgrade when it helps.
Everything you need to log meals and see glucose patterns is free, forever. Upgrade for AI analysis when you're ready.
$0
Meal logging — unlimited
CGM auto-sync (Dexcom + Nightscout)
Glucose patterns per meal
14 / 30 / 60-Day Reports
Care partner sharing
from $3/mo
Everything in Free
AI Chat — ask about your patterns
Automatic meal scores
AI Weekly Digest
Photo macro estimator
Your data belongs to you
We never sell it, share it, or use it to train models. Export or delete everything at any time from Settings.