GLOSSARY

Trypsinogen is the secreted pancreatic trypsin precursor, with full activity normally initiated at the appropriate site.

Acid and pepsin initiate gastric protein processing, followed by pancreatic proteases and intestinal peptidases. Endopeptidases attack internal bonds; exopeptidases work at chain ends. Products include small peptides as well as free amino acids. A hydrolyzed powder does not automatically provide complete uptake, superior muscle growth or a requirement for every athlete. Total protein, quality and meal planning still matter beyond the speed of one digestive step.

Many pancreatic proteases are secreted as precursors. Intestinal enteropeptidase activates trypsinogen, and trypsin helps activate other zymogens. This control limits inappropriate premature activity. Zymogen and proenzyme describe the same general principle; a pro-prefix should not be read as fully active enzyme. Normal activation physiology does not imply that swallowing extra protease is necessary or that every precursor has an independent dietary requirement.

For a sports product, separate the pathway's normal role from package claims; assess actual composition, amount and training tolerance rather than treating an enzyme name as a reason to buy or consume more.

A digestive enzyme accelerates particular reactions according to bond type, environment and substrate access. One enzyme cannot necessarily break every food component. Some are made as precursors and activated later to limit inappropriate injury. Separate normal physiology from supplement effects: an enzyme's presence in the body does not itself prove that additional intake improves digestion or sports performance in someone without a relevant deficiency.