All about fruitarianism with a long-term fruitarian, Lena

A plant-based diet is a diet of any animal (including humans) based on foods derived from plants, including vegetables, whole grains, legumes and fruits, but with few or no animal products

"Plant-based diet" has been used to refer to the following diets:

  • Vegan diet - no food from animal sources.
    • Fruitarian  - consists primarily of fruit.
    • Raw vegan - food is uncooked and sometimes dehydrated.
  • Vegetarian - plant foods, may include eggs and dairy, but no meat.
  • Ovo-lacto vegetarian - includes dairy and eggs.
  • Ovo vegetarian - includes eggs but no dairy. 
  • Lacto vegetarian - includes dairy but no eggs.
  • Pescatarian - diet with eggs, dairy and seafood.
  • Semi-vegetarian - with occasional inclusion of meat.

George Bernard Shaw

The thought of two thousand people crunching celery at the same time horrified me.

Vitamin C

Vitamin C, or L-ascorbic acid, or ascorbate, is an essential nutrient for humans, a water-soluble vitamin. Humans, unlike most animals, are unable to synthesize vitamin C, so it is an essential dietary component. 

  • Vitamin C is required for the biosynthesis of collagen (an essential component of connective tissue), L-carnitine, and certain neurotransmitters, it is also involved in protein metabolism.
  • Vitamin C is also an important physiological antioxidant and has been shown to regenerate other antioxidants within the body, including alpha-tocopherol (vitamin E). Vitamin C regenerates vitamin E by reducing vitamin E radicals formed when vitamin E scavenges the oxygen radicals. 
  • Vitamin C plays an important role in immune function and improves the absorption of nonheme iron, the form of iron present in plant-based foods.

Approximately 70%–90% of vitamin C is absorbed at moderate intakes of 30–180 mg a day. At doses above 1 g a day, absorption falls to less than 50% and absorbed, unmetabolized ascorbic acid is excreted in the urine. 

Insufficient vitamin C intake causes scurvy, which is characterized by fatigue or lassitude, connective tissue weakness, and capillary fragility.

Cells accumulate vitamin C. The total body content of vitamin C ranges from 300 mg (at near scurvy) to about 2 g.

  • High levels of vitamin C are maintained in cells and tissues, and are highest in leukocytes (white blood cells), eyes, adrenal glands, pituitary gland, and brain.
  • Relatively low levels of vitamin C are found in extracellular fluids, such as plasma, red blood cells, and saliva.

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