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Perspective: Assessing Tolerance to Nondigestible Carbohydrate Consumption.

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Nondigestible carbohydrates (NDCs) offer health and food benefits but can cause digestive issues. Evaluating consumer tolerance requires careful study design to ensure product acceptance and safety.

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Area of Science:

  • Food Science and Technology
  • Human Nutrition
  • Microbiology

Background:

  • Nondigestible carbohydrates (NDCs) are not digested by human enzymes but fermented by gut microbiota.
  • NDCs offer health benefits (e.g., laxation, cholesterol/glucose lowering) and functional properties in foods (e.g., bulking, texture).
  • Despite benefits, NDCs can cause gastrointestinal symptoms like bloating and flatulence, impacting consumer acceptance.

Purpose of the Study:

  • To provide recommendations for assessing gastrointestinal tolerance to NDCs.
  • To guide food product development and clinical trial design for NDC ingredients.
  • To address special considerations for pediatric studies and stakeholder implications.

Main Methods:

  • Focus on study design elements: population criteria, intervention, comparator, and outcome measures.
  • Recommends randomized, blinded, controlled crossover studies for robust tolerance evaluation.
  • Emphasizes the use of standard gastrointestinal questionnaires and consideration of participant factors (diet, health, lifestyle, medications).

Main Results:

  • Standardized methodologies are crucial for accurately assessing NDC tolerance.
  • Controlled studies minimize bias and allow for reliable interpretation of tolerance data.
  • Comprehensive assessment considers individual participant variability.

Conclusions:

  • Proper evaluation of gastrointestinal tolerance is essential for the successful incorporation of NDCs into food products.
  • Well-designed studies ensure consumer well-being and facilitate the realization of NDC health benefits.
  • Adherence to recommended methodologies supports informed decision-making for food manufacturers and researchers.