Diffusion of Glucose, Insulin, Inulin, and Evans Blue Protein into Thoracic Duct Lymph of Man*

Abstract
Immunoreactive insulin, like inulin, quickly equilibrates with interstitial fluid, as evidenced by recovery in thoracic duct lymph in man. Insulin-like activity not accounted for by immunoreactive insulin behaves as a large protein and is confined to the vascular compartment.