HealthQuantityType# PRO

This document lists all supported HealthQuantityType identifiers, categorized by domain. Each type is associated with a measurable health-related metric and can be used to track fitness, vital signs, nutrition, environment, and more.

#1. Body Measurements

#2. Activity & Fitness

#3. Exercise-Specific Metrics

#4. Running & Walking Analysis

#5. Heart & Vitals

#6. Audio & Environment

#7. Nutrition (Dietary Intake)

#8. Lifestyle & Others

#When to Use HealthQuantityType

You will provide a HealthQuantityType string when:

1. Querying quantity samples:

const results = await Health.queryQuantitySamples({
  type: "stepCount",
  startDate: new Date("2025-07-01"),
  endDate: new Date("2025-07-02")
})

2. Writing a quantity sample:

const sample = HealthQuantitySample.create({
  type: "bodyMass",
  unit: HealthUnit.gramUnit(HealthUnitPrefix.kilo),
  value: 70.0,
  startDate: new Date("2025-07-01 00:00:00"),
  endDate:  new Date("2025-07-02 00:00:00"),
})

await Health.saveQuantitySample(sample)

3. Reading statistics from a workout:

const stat = workout.allStatistics["heartRate"]
const avg = stat?.averageQuantity(HealthUnit.count().divided(HealthUnit.minute()))