Table 1. Glucose and peptide assays.

Assay	Manufacturer	Catalog Number	Notes on the Assay
Active GLP-1	Meso Scale Discovery	K151HZC	Electrochemiluminescent multiplex immunoassay. Standard curve range is 3.13 – 200 pg/mL
Total GLP-1	Meso Scale Discovery	Multiplex assay with glucagon and insulin, catalog number K15160C	Electrochemiluminescent multiplex immunoassay. Standard curve range is 3.13 – 200 pg/mL
PYY	Millipore	EZHPYYT66K	Sandwich enzyme-linked immunosorbent assay. Standard curve range is 40 – 2000 pg/mL
GIP	Millipore	EZHGIP-54K	Sandwich enzyme-linked immunosorbent assay. Standard curve range is 7.18 – 1000 pg/mL
Glucose (2300 STAT Plus Glucose Analyzer)	YSI	Glucose/lactate standard, catalog number 2747	Automated instrument for measuring glucose concentration in plasma or serum