Available energy in kcal (kJ)

Organ

Glucose or glycogen

Triacylglycerol’s

Mobilizable proteins

Blood

60 (250)

45 (200)

0 (0)

Liver

400 (1700)

450 (2000)

400 (1700)

Brain

8 (30)

0 (0)

0 (0)

Muscle

1200 (5000)

450 (2000)

24,000 (100,000)

Adipose tissue

80 (330)

135,000 (560,000)

40 (170)