Concentration (mg/100g) of Vitamin C in Human Tissue Plasma 0.4-1 Muscle 3-4 Brain 3-15 Heart 5-15 Kidneys 5-15 Lungs 7 Thymus 10-15 Pancreas 10-15 Liver 10-16 Lens 25-31 Adrenals 30-40 Pituitary 40-50

Table 1: Concentration (mg/100 g) of vitamin C in human tissue.