Liver Nutrient Storage: Glucose, Vitamins, Minerals, and Fats

Key Storage Functions

• Glucose → Glycogen: Glycogenesis (fed); glycogenolysis (fasting) maintains blood glucose.
• Amino acids: Deamination → urea; transamination for protein synthesis.
• Vitamins: A (retinyl esters), D, B₁₂ (years‑long stores).
• Minerals: Iron (ferritin), copper.
• Fatty acids → Triglycerides: VLDL export; ketogenesis during prolonged fast.

Homeostatic Role

The liver buffers nutrient fluctuations between meals, ensuring continuous supply to brain, muscle, and other tissues.