CGM Food Tracker App | Connect Meals and Glucose

Log meals, estimate carbs and macros, and see food alongside your glucose patterns.

GlucIQ connects with Dexcom and FreeStyle Libre. Try free.

What is a CGM Food Tracker?

A CGM food tracker is an app that connects meal logging with continuous glucose monitor data so you can see food and glucose patterns together. GlucIQ lets you log meals with a photo, estimate carbs and macros, and view each meal alongside your glucose curve from Dexcom, FreeStyle Libre, or any of the 20+ connected devices. It is designed for people with diabetes, prediabetes, and anyone using a CGM or glucose monitor who wants more context around their data.

The Problem

Your CGM shows you what your glucose did. It does not always show you why.

A glucose curve without meal context is harder to learn from. You can see a rise at 1pm, but without knowing what you ate and when, it is difficult to know what caused it or what to do differently next time. When meals are logged alongside glucose data, patterns become easier to spot. GlucIQ connects what you eat with what your glucose does next, so your CGM data tells a more complete story.

Meal + Glucose

Every meal, mapped to your real glucose curve.

Connect Dexcom or FreeStyle Libre and GlucIQ overlays each meal onto your glucose graph. Log a meal with a photo, see what you ate and when, and watch how your glucose responded, all in one view. Patterns that are hard to notice day to day become clearer when you compare them across weeks.

Dexcom, FreeStyle Libre, and 20+ CGMs
Blood glucose meters supported
Works without a CGM too

Why It Works

Built on clinical evidence.

−38% Fewer carb estimation errors — In a peer-reviewed study, GlucIQ reduced carb estimation errors by 38% compared to self-estimation in people with T1D. (JDST, 2024)
CGM overlay — Meals on your glucose timeline. Each logged meal appears directly on your glucose curve so you can see food and glucose patterns side by side.
AI — AI Nutritionist in your pocket. Ask questions about any meal, a glucose pattern, or a food swap. The AI Nutritionist gives educational explanations based on your own meal and glucose history.

Common Scenarios

How people use GlucIQ with their CGM

Logging meals with a photo and seeing how each one sits on the Dexcom or FreeStyle Libre glucose curve
Reviewing postprandial patterns across the week to understand which meals cause a sharper rise
Saving frequent meals and snacks as Favorites to reduce daily logging effort
Asking the AI Nutritionist about a glucose pattern after a specific meal or food combination
Using GlucIQ between sensors or without a CGM to keep the meal log consistent
Sharing a timestamped food and glucose history with a diabetes care team at appointments

Clinical Evidence

The only consumer nutrition app with published clinical evidence in diabetes.

+6.6% Time in Range (the proportion of time glucose stays within a healthy target range) · eClinicalMedicine · 2025

Validated in a randomised controlled trial with T1D patients on automated insulin delivery. Participants spent more time in their blood sugar target range.

Source: eClinicalMedicine (The Lancet), 2025 · 53 T1D participants.

Common Questions

How do my meals show up on my glucose curve? When you log a meal in GlucIQ, a marker appears on your CGM glucose timeline at the time you ate. You can tap the marker to see the meal photo and nutrition estimate, so you can compare what you ate with what happened to your glucose in the hours that followed.

Which CGMs and glucose monitors does GlucIQ support? GlucIQ connects with Dexcom, FreeStyle Libre, and 20+ other CGMs, wearables, and health platforms including Apple Health and Google Health Connect. Blood glucose meters are also supported.

What can I do in GlucIQ if I am between CGM sensors? All of GlucIQ's meal logging features work without a connected CGM. You can still log meals with a photo, estimate carbs and macros, save Favorites, and build a food history. When you connect a new sensor, it syncs and the meal markers appear on your glucose timeline automatically.

How does the AI Nutritionist use my glucose history? The AI Nutritionist can reference your logged meals and glucose data when you ask it questions. For example, you can ask why a particular meal caused a different response than usual, which breakfasts in your log tend to relate to steadier patterns, or what a better alternative to a meal might look like. It can suggest adjustments based on what it observes in your own history rather than giving the same generic advice to everyone.