Table 3.

Standard classification of bolus consistencies defined by the National Dysphagia Diet Task Force (NDD standard)

Consistency	Thin	Nectar	Honey	Spoon-thick
Viscosity range (mPa s)	1–50	51–350	351–1,750	>1,750

Viscosities need to be evaluated at a shear rate of 50 s⁻¹ and temperature of 25 °C to comply with these standards