also known as Glucose in Serum or Plasma, pre-meal
| Glucose Test | 11 retailers | $5 |
| Insulin | 10 retailers | $4 |
| C-Peptide | 10 retailers | $18 |
| Fructosamine | 10 retailers | $11 |
| Diabetes Blood Test | 6 retailers | $13 |
| Diabetes Panel | 5 retailers | $49.95 |
| Insulin Autoantibody Test | 5 retailers | $88.95 |
| Diabetes Baseline Panel | 4 retailers | $24.97 |