Dataset

CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet)

CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet). Recorded signals include cgm, activity. Licence: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International.

Original description

We present CGMacros, a dataset containing multimodal information from two continuous glucose monitors (CGM), food macronutrients, food photographs, and physical activity, in addition to anonymized participant demographics, anthropometric measurements and health parameters from blood analyses and gut microbiome profiles. CGMacros contains data from 45 study participants (15 healthy adults, 16 with pre-diabetes, and 14 with Type 2 diabetes) who consumed meals with varying and known macronutrient compositions in a free-living setting for ten consecutive days. To our knowledge, this is the first database of its kind to be made publicly available. CGMacros, and larger publicly available datasets that we hope may follow, are essential to democratize academic research in personalized nutrition and algorithmic approaches to automated diet monitoring.

Verbatim fromPhysioNet· Licence: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License

CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet): ChatPPG research summary card

Key numbers

45
Subjects
2
Reference labels
GLUCOSE, MEALS

How it works

How CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet) works: Devices & body sites → Signals recorded → TasksDevices & body sites: Fitbit Sense (Google / Fitbit · Wrist). PPG sites: None. Signals recorded: CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet), 45 subjects, signals Glucose, Activity. Tasks: Glucose.Devices & body sitesFitbit Sense: Google / Fitbit · WristFitbit SenseGoogle / Fitbit · WristPPG sites: NonePPG sitesNoneSignals recordedCGMacros: dual-CGM + Fitbit +…45 subjectsGlucoseActivityTasksGlucoseGlucose
Sampling
Libre Pro 15 min; Dexcom G6 Pro 5 min; rows at 1-min intervals incl. Fitbit readings
Reference labels
glucose, meals

Devices· 1

Icons show the form factor: we have no openly licensed or manufacturer-cleared photo of these exact devices yet.

Papers and models using this dataset· 5

#44 of 158 most-used datasets by published papers and models

Browse these 3 papers in the research explorer (filtered to CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet))

Cite this dataset

Cite this dataset with the fields recorded here. Check it against the publisher before submitting.

CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet) [Data set]. (n.d.). physionet. https://doi.org/10.13026/3z8q-x658
@misc{cgmacroscgmacros,
  title         = {{CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet)}},
  howpublished  = {physionet},
  doi           = {10.13026/3z8q-x658}
}

Cite the ChatPPG record

Cite the dated snapshot 2026-10 for a fixed, reproducible version. Please also cite the original publications listed above.

APA

ChatPPG. (2026). CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet): dataset record (Version 2026-10) [Data set]. ChatPPG Research Hub. https://chatppg.com/research/datasets/cgmacros

BibTeX
@misc{chatppg_dataset_cgmacros,
  author       = {{ChatPPG}},
  title        = {{CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet): dataset record}},
  year         = {2026},
  month        = nov,
  version      = {2026-10},
  howpublished = {\url{https://chatppg.com/research/datasets/cgmacros}},
  note         = {ChatPPG Research Hub, Snapshot 2026-10, https://chatppg.com/research/snapshots/2026-10}
}
CITATION.cff
cff-version: 1.2.0
message: "If you use this resource, please cite it as below."
type: dataset
title: "CGMacros: dual-CGM + Fitbit + meal macronutrients/photos in healthy, pre-diabetes and T2D adults (PhysioNet): dataset record"
authors:
  - name: "ChatPPG"
url: "https://chatppg.com/research/datasets/cgmacros"
repository-artifact: "https://chatppg.com/research/snapshots/2026-10"
version: "2026-10"
date-released: "2026-11-05"

History

  1. Record updated