{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/consumer-products/refs/heads/main/json-schema/nutrition-facts-schema.json",
  "title": "NutritionFacts",
  "description": "Nutrition facts panel data for a consumer food or beverage product, aligned with US FDA Nutrition Facts and Open Food Facts conventions.",
  "type": "object",
  "properties": {
    "servingSize": {
      "type": "object",
      "description": "Manufacturer-declared serving size.",
      "properties": {
        "value": { "type": "number", "example": 30 },
        "unit": { "type": "string", "example": "g" },
        "description": {
          "type": "string",
          "description": "Free-text serving description (e.g. '2 tbsp (30 g)').",
          "example": "2 tbsp (30 g)"
        }
      },
      "required": ["value", "unit"]
    },
    "servingsPerContainer": {
      "type": "number",
      "description": "Servings per container as printed on the panel.",
      "example": 8
    },
    "energyKcal": {
      "type": "number",
      "description": "Calories per serving (kcal).",
      "example": 150
    },
    "energyKj": {
      "type": "number",
      "description": "Energy per serving in kilojoules.",
      "example": 628
    },
    "totalFatG": {
      "type": "number",
      "description": "Total fat per serving in grams.",
      "example": 8
    },
    "saturatedFatG": {
      "type": "number",
      "description": "Saturated fat per serving in grams.",
      "example": 1.5
    },
    "transFatG": {
      "type": "number",
      "description": "Trans fat per serving in grams.",
      "example": 0
    },
    "cholesterolMg": {
      "type": "number",
      "description": "Cholesterol per serving in milligrams.",
      "example": 0
    },
    "sodiumMg": {
      "type": "number",
      "description": "Sodium per serving in milligrams.",
      "example": 95
    },
    "totalCarbohydrateG": {
      "type": "number",
      "description": "Total carbohydrate per serving in grams.",
      "example": 16
    },
    "dietaryFiberG": {
      "type": "number",
      "description": "Dietary fiber per serving in grams.",
      "example": 1
    },
    "totalSugarsG": {
      "type": "number",
      "description": "Total sugars per serving in grams.",
      "example": 2
    },
    "addedSugarsG": {
      "type": "number",
      "description": "Added sugars per serving in grams.",
      "example": 1
    },
    "proteinG": {
      "type": "number",
      "description": "Protein per serving in grams.",
      "example": 2
    },
    "nutriScore": {
      "type": "string",
      "description": "Nutri-Score nutritional grade.",
      "enum": ["A", "B", "C", "D", "E"],
      "example": "B"
    },
    "novaGroup": {
      "type": "integer",
      "description": "NOVA classification of food processing level (1 = unprocessed, 4 = ultra-processed).",
      "enum": [1, 2, 3, 4],
      "example": 3
    }
  },
  "required": ["servingSize", "energyKcal"]
}