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Fiber Calculator API

Calculate recommended daily fiber target and fiber-per-kg context from user profile and activity level.

Endpoint

  • GET /api/v1/fiber-calculator
  • POST /api/v1/fiber-calculator/post

Parameters

Name Type Required In Description
sex string (male,female) Yes Query/Body Biological sex.
age number Yes Query/Body Age in years.
height number Yes Query/Body Height (cm metric, in imperial).
weight number Yes Query/Body Weight (kg metric, lb imperial).
unit string (metric,imperial) No Query/Body Input mode. Default metric.
activity_level string Yes Query/Body sedentary,lightly_active,moderately_active,very_active,extra_active.
lang string No Query Response language (en,es,de,fr,pt,ja,hi,ar).

Why Use This Endpoint

  • Integrate practical fiber recommendations into meal planning.
  • Detect under-target fiber profiles automatically.
  • Improve gut-health and satiety guidance in coaching flows.

Get Started

Request Example

curl -X GET "https://api.hefitapi.com/api/v1/fiber-calculator?sex=female&age=30&height=165&weight=66&unit=metric&activity_level=moderately_active&lang=en" \
  -H "X-API-Key: YOUR_API_KEY"

curl -X POST "https://api.hefitapi.com/api/v1/fiber-calculator/post?lang=en" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{"sex":"female","age":30,"height":165,"weight":66,"unit":"metric","activity_level":"moderately_active"}'

Response Example

Info

The response example below is for demonstration purposes only. Make a live request to this endpoint to receive the full, real-time, and potentially richer JSON structure.

{
  "sex": "female",
  "age": 30.0,
  "height_cm": 165.0,
  "weight_kg": 66.0,
  "unit": "metric",
  "activity_level": "moderately_active",
  "tdee_kcal_per_day": 2335.03,
  "fiber_intake_g": 32.69,
  "fiber_per_kg_g": 0.495,
  "fiber_band": "moderate",
  "fiber_band_label": "Moderate",
  "intake_context": "Current activity supports standard fiber target.",
  "action_plan": ["Increase whole-food fiber sources"],
  "food_focus": ["Legumes", "Whole grains", "Vegetables"],
  "monitoring_plan": "Track intake consistency weekly.",
  "_enterprise": {
    "client": "Acme Health",
    "plan": "pro",
    "request_id": "3c5f53bd0712bb3d",
    "quota": 120,
    "usage_tracking": true
  },
  "_api_metadata_": {
    "endpoint_name": "fiber_calculator",
    "response_language": "en"
  }
}

Market Positioning

Useful in nutrition SaaS, gut-health tools, and preventive wellness products.

Note

Positive numeric values are required for age, height, and weight.