GLOSSARY

Digestibility Coefficient is another wording for a digestibility coefficient, not a separate physiological index created by word order.

Digestibility evaluates the fraction digested or disappearing under a defined method, not the speed of digestion. Apparent measurements can include endogenous material in gastrointestinal output. Correcting for that material supports true measures. Sampling location, test nutrient and correction method must be stated; fecal and ileal values are not automatically interchangeable. A coefficient is a method-dependent estimate rather than a universal property of every serving.

Bioaccessibility concerns release from the food matrix and accessibility for absorption; bioavailability concerns the absorbed and usable fraction within a stated framework. Laboratory release does not equal human uptake. Cooking, meal composition, chemical form and body status matter. Practical food choices require actual portions and variety rather than accepting a claim of complete absorption without knowing the measurement method or relevant conditions.

Fractional absorption relates absorbed amount to a defined intake, whereas absorption rate expresses amount per time. Rates can differ despite similar final fractions, or the reverse. Specify nutrient, dose and interval when reporting percentages. A rising blood concentration also reflects more than entry because tissue removal and metabolism occur simultaneously. Neither one blood peak nor a rapid label claim establishes total absorption.