All about fruitarianism with a long-term fruitarian, Lena

Choline is an essential vitamin-like (vitamin B4) nutrient, synthesized in human body, but not sufficiently.

The recommended adequate intake (AI) of choline is set at 425 milligrams (mg)/day for women and 550 mg/day for men.

Choline deficiency causes muscle damage and abnormal deposition of fat in the liver, which results in a condition called nonalcoholic fatty liver disease. Genetic predispositions and gender can influence individual variation in choline requirements.

Example Plant Fruitarian Sources of Choline

Seeds (including legumes and nuts), high in choline, milligrams per 100 g portion: 

  • Soybeans - 124 mg 
  • Lima beans - 97 mg 
  • Lentils - 96 mg
  • Peas (mature) - 96 mg
  • Flaxseeds - 79 mg 
  • Pistachio nuts - 71 mg 
  • Quinoa - 70 mg 
  • Pumpkin and squash seed kernels (pepitas) -  63 mg 
  • Cashew nuts - 61 mg 
  • Pine nuts - 56 mg 
  • Sunflower seed kernels - 55 mg 
  • Buckwheat - 54 mg 
  • Almonds - 52 mg 

Fruits, high in choline, milligrams per 100 g portion: 

  • Tomatoes, sun-dried - 105 mg 
  • Apples - 18 mg 
  • Figs - 16 mg 
  • Avocados - 14 mg 

William of Ockham

Entities should not be multiplied unnecessarily.

Carotenoids

Carotenoids are a class of more than 750 pigments synthesized by plants, algae, and photosynthetic bacteria. These richly colored molecules are the sources of the yellow, orange, and red colors of many plants. Fruit and vegetables provide most of the 40 to 50 carotenoid phytonutrients found in the human diet.

The most common carotenoids in North American diets are α-carotene, β-carotene, β-cryptoxanthin, lutein, zeaxanthin, and lycopene. 

Provitamin A carotenoids - α-carotene, β-carotene, and β-cryptoxanthin - can be converted by the body to retinol (vitamin A), but not lutein, zeaxanthin, and lycopene. 

Dietary lutein and zeaxanthin help maintain optimal visual function - they absorb damaging blue light that enters the eye.

The results of observational studies suggest that diets high in carotenoid-rich fruit and vegetables are associated with reduced risks of cardiovascular disease and some cancers. But high-dose β-carotene supplements did not

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