Rheological and Technological Design of Texture-Modified Food Systems for Dysphagia Management in Amyotrophic Lateral...

Area of Science:

• Food Science
• Rheology
• Nutritional Science

Background:

• Amyotrophic lateral sclerosis (ALS) often causes dysphagia, weight loss, and hypermetabolism, impacting nutritional status.
• Patients require food systems providing adequate energy and protein in small volumes, with safe swallowing properties.
• Texture-modified foods are essential for nutritional support in ALS patients.

Purpose of the Study:

• To review technological and rheological approaches for designing texture-modified food systems for ALS patients.
• To analyze key parameters like viscosity, shear-thinning behavior, and yield stress for safe swallowing.
• To consider the International Dysphagia Diet Standardization Initiative (IDDSI) framework.

Main Methods:

• Analysis of rheological properties (viscosity, yield stress, shear-thinning).
• Examination of food structure and stability.
• Review of raw materials (animal/plant-based) and technological strategies (homogenization, 3D printing).

Main Results:

• Apparent viscosity, shear-thinning, yield stress, homogeneity, and stability are critical for bolus formation and swallowing.
• Animal and plant-based ingredients, including regional options, can create energy-dense, stable foods.
• Techniques like homogenization, hydrocolloid thickening, and 3D printing aid in developing safe, acceptable foods.

Conclusions:

• Integrating food texture science, rheology, nutrition, and sensory aspects is vital for effective texture-modified foods.
• Developing clinically relevant, adaptable food products requires a multidisciplinary approach.
• Addressing ALS-related dysphagia necessitates tailored food solutions considering regional availability and patient needs.