Table 1.

Characteristics of the participants.

Age (years)	69.2 ± 2.4
BMI (kg/m2)	23.9 ± 4.0
Glucose (mmol/L)	5.2 ± 0.6
Insulin (mIE/L)	5.5 ± 3.3
Glucagon (pmol/L)	40.3 ± 4.4
BHBv (mmol/L)	0.15 ± 0.14
BHBp (mmol/L)	0.12 ± 0.08
Acetoacetate (mmol/L)	0.18 ± 0.03
Total ketones (mmol/L)	0.30 ± 0.10

Mean values and standard deviations. BHBp, β-hydroxybutyrate in plasma; BHBv, β-hydroxybutyrate in venous whole blood.