GLOSSARY

Sodium Absorption is uptake from intestinal contents into the internal body environment; consumed and absorbed amounts need not be equal.

Renal sodium reabsorption and excretion work with hormonal signals and water regulation to influence volume and pressure. Sweat and diarrhea provide other loss routes, while heat acclimation can alter sweat composition. Low urinary excretion does not always indicate low intake: the body may retain sodium in response to reduced volume. Interpret the time period and fluid context together.

Table salt supplies sodium and chloride, but salt mass differs from sodium mass. Bread, cheese, sauces, canned foods and prepared meals can contribute substantially without tasting extremely salty. Food records use actual servings and label units, including drinks and tablets. Comparing products only by tablet number or an electrolyte claim does not establish equivalent sodium intake or replacement.

Absorption depends on chemical form, serving amount, the food matrix, body needs and gastrointestinal function. A percentage measured for one product under study conditions is not a fixed value for every person and meal. Label quantity describes intake. Practical decisions also consider digestive tolerance, elemental amount and outcome evidence, rather than a high-absorption marketing statement alone.