All about fruitarianism with a long-term fruitarian, Lena

Provitamin A carotenoids are found in green leafy vegetables (e.g. spinach, amaranth, and young leaves from various sources), yellow vegetables (e.g. pumpkins, squash, and carrots), and yellow and orange non-citrus fruits (e.g. mangoes, apricots, and papayas).

Red palm oil produced in several countries worldwide is especially rich in provitamin A.

Some other indigenous plants also may be unusually rich sources of provitamin A: 

  • palm fruit known in Brazil as burití, found in areas along the Amazon River (as well as elsewhere in Latin America), 
  • fruit known as gac in Viet Nam (used to colour rice). 

George Berkeley

If a tree falls in the forest and no one is there to hear it, does it make a sound?

Nitrogen Balance

Nitrogen balance is a measure of nitrogen input minus nitrogen output

Nitrogen Balance = Nitrogen intake - Nitrogen loss

Nitrogen is a fundamental component of amino acids, which are the molecular building blocks of protein. Measuring nitrogen inputs and losses can be used to study protein metabolism. 

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