# Nutritional Biochemistry & DRI/RDA Reference Oracle #148 (Polyphenols & Antioxidants) (`nutrition-biochemistry-oracle-148`)
- **Status**: 200 OK | **Latency**: 1ms | **Cached**: true
- **Primary Authority**: USDA FoodData Central Public Domain Reference
- **License & Trust**: 100% Platform Deterministic Compute / Open Reference (computed_by_platform)
- **Verified At (UTC)**: 2026-10-27T15:11:52.331Z
- **Data Freshness**: cached
## Structured Data
```json
{
  "nutrient_profile_id": 148,
  "classification": "Polyphenols & Antioxidants",
  "bioavailability_tier": "High (>80% absorption)",
  "usda_public_domain_verified": true
}
```
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