All about fruitarianism with a long-term fruitarian, Lena

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

Gottfried Wilhelm Leibniz

We live in the best of all possible worlds.

Vitamin B3 Niacin

Vitamin B3, Niacin, nicotinic acid, helps to convert food into energy and is essential for healthy skin, blood cells, brain, and nervous system. It is one of 8 B vitamins. It is water-soluble, which means it is not stored in the body. It has 2 other forms, niacinamide (nicotinamide) and inositol hexanicotinate, which have different effects. 

Niacin occurs naturally in food and can also be made by your body from the amino acid tryptophan, with the help of B6

It is rare for anyone in the developed world to have a Vitamin B3 deficiency; alcoholism is the main cause of it in the US.

Recommended daily amount: 14 - 16 mg.

Example sources: whole grains, mushrooms, peanuts and other legumes. 

Fruits (100 g) : 

  1. Peaches or Apricots, dried - Niacin: 4 mg 
  2. Avocados, raw or Dates, medjool  - Niacin: 2 mg 

Seeds (100 g):

  1. Rice bran, crude - Niacin: 34 mg 
  2. Sesame flour - Niacin: 13 mg 
  3. Sunflower seed kernels, dried - Niacin: 8 mg 

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