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Nutrition · Chapter 2

Blood or Lymph?

Every absorbed nutrient reaches the same villus — and then the road forks. Water-soluble nutrients step into a blood capillary and are marched straight to the liver. Fat that has been rebuilt into a chylomicron is simply too big for that capillary, so it leaves by the lacteal and enters the bloodstream at the neck, hours later, having skipped the liver entirely. Build a meal and watch the split recalculate.

Inside one villus

Two roads to the heart

The fork in the roadbuild a meal to see the split

Build a meal

Carbohydrate × 4 kcal/g60g
Protein × 4 kcal/g25g
Fat × 9 kcal/g30g
Alcohol × 7 kcal/g0g
Of that fat, long-chain95%
Share by weight
Share by energy
blood → liver firstlymph → liver last

Where each part goes