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Garmin Body Composition Summary Export Format

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Body Composition summaries contain information about the user’s biometric data, like weight or body mass index.

  • File Prefix: GarminBodyCompositionSummary
  • Natural Key: ParticipantID+ SummaryId

For a complete list of all the export file types possible, see the Garmin Export Overview.

Table of Contents

Data Fields

Field Description
ParticipantID The stable, automatically generated, internal system identifier for this participant. Universally unique identifier (UUID).
ParticipantIdentifier The identifier of the participant the activity summary is for. Can be used to cross reference with Participants.
SummaryId Unique identifier for the summary.
MeasurementTimeInSeconds

Time of measurement in seconds since January 1, 1970, 00:00:00 UTC (Unix timestamp).
MeasurementTimeOffsetInSeconds Offset in seconds to add to measurementTimeInSeconds to derive the “local” time of the device that captured the data.
MuscleMassInGrams

Muscle mass in grams.
BoneMassInGrams

Bone mass in grams.
BodyWaterInPercent Percentage of body water (range 0.0 – 100.0).
BodyFatInPercent Percentage of body fat. (range 0.0 – 100.0).
BodyMassIndex Body mass index, or BMI.
WeightInGrams Weight in grams.
InsertedDate The creation date of the entry, in ISO 8601 format. Is always in UTC.

Sample CSV Export

ParticipantID,ParticipantIdentifier,SummaryId,MeasurementTimeInSeconds,MeasurementTimeOffsetInSeconds,MuscleMassInGrams,BoneMassInGrams,BodyWaterInPercent,BodyFatInPercent,BodyMassIndex,WeightInGrams,InsertedDate
1be320d5-57fa-4860-8fa2-033b27038c4e,TST12345,x45e31a7-621d6200,1646092800,-18000,,,,0.0,23.6,74615,2023-02-06T21:24:30Z
1be320d5-57fa-4860-8fa2-033b27038c4e,TST12345,x45e31a7-621eb380,1646179200,-18000,,,,0.0,23.6,74615,2023-02-06T21:24:30Z
1be320d5-57fa-4860-8fa2-033b27038c4e,TST12345,x45e31a7-62215680,1646352000,-18000,,,,0.0,23.6,74611,2023-02-06T21:24:30Z
...
1be320d5-57fa-4860-8fa2-033b27038c4e,TST12345,x45e31a7-63b42742,1672750914,-18000,29979,3779,55.9,23.4,23.3,73740,2023-02-04T16:22:27Z

Sample JSON Export

{
    "MeasurementTimeInSeconds": 1646092800,
    "MeasurementTimeOffsetInSeconds": -18000,
    "BodyFatInPercent": 0.0,
    "BodyMassIndex": 23.6,
    "WeightInGrams": 74615,
    "ParticipantID": "b728e3e8-1e97-453c-a3a5-5f4a1e5ce687",
    "ParticipantIdentifier": "TST12345",
    "SummaryId": "x45e31a7-621d6200",
    "InsertedDate": "2023-02-06T21:24:30"
}
...       
{
    "MeasurementTimeInSeconds": 1672750914,
    "MeasurementTimeOffsetInSeconds": -18000,
    "MuscleMassInGrams": 29979,
    "BoneMassInGrams": 3779,
    "BodyWaterInPercent": 55.9,
    "BodyFatInPercent": 23.4,
    "BodyMassIndex": 23.3,
    "WeightInGrams": 73740,
    "ParticipantID": "b728e3e8-1e97-453c-a3a5-5f4a1e5ce687",
    "ParticipantIdentifier": "TST12345",
    "SummaryId": "x45e31a7-63b42742",
    "InsertedDate": "2023-02-04T16:22:27"
}

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