IDDSI — The International Dysphagia Diet Standardisation Initiative

IDDSI defines 8 universal levels for texture-modified food and thickened drinks — the global standard for safe swallowing in dysphagia care. SeniorDeli is a T/SATA 094-2025 Participating Drafting Unit and provides clinical-grade implementation across Hong Kong RCHEs.

What is IDDSI?

The IDDSI framework provides a common terminology and rigorous testing methodology so clinicians, caregivers, and food producers worldwide describe the same texture the same way. Levels 0–4 cover drinks (Thin → Extremely Thick) and Levels 3–7 cover foods (Liquidised → Regular / Easy-to-Chew). Each level is defined by objective tests: fork drip, flow, spoon tilt, finger-press, and the IDDSI Funnel.

Start with these guides:

• IDDSI for Beginners

  Start here — what each level means, why it matters, how to recognise the correct texture.

• Full Framework Guide

  All 8 levels, drinks vs foods, testing methods, transition rules, and clinical references.

• Level 4 (Pureed) Standards

  Deep-dive on the most-used level in HK RCHE care — preparation, testing, and failure modes.

• Care-Home Compliance Guide

  Audit checklist, staff training, T/SATA 094 alignment, and the path to ISO 11000 RCHE certification.