All about fruitarianism with a long-term fruitarian, Lena

History of Plant Studies: 

In the centuries following the time of Aristotle and his students, who made the first philosophical attempts to understand plants in their complexity, interest in herb plants was limited mainly to their medical usage. This changed in the sixteenth century when the first biological attempts were done to understand the basic principles of structure and function of plants. At first, studies were largely devoted to plant distribution, taxonomy, and morphology. Later, taking the lead from medicine, anatomy and cytology of plants were added to the curriculum of plant sciences, as studied in the early universities.

In fact, the cellular nature of living organisms was first elaborated using plants (Hooke 1665). By the end of the 19th century, it was realised that plants were even more similar to animals than had been thought hitherto.

  • For their reproduction, plants use identical sexual processes.
  • Plants attacked by pathogens develop immunity, using the corresponding processes and mechanisms in animals.
  • Both animals and plants use the same molecules and pathways to drive their circadian rhythms.

Critical mass of new data has been accumulated, culminating in the emergence of plant neurobiology.

Plants are intelligent organisms, which perform complex information processing. The word "neuron" was taken by animal neurobiologists from Greek where the original meaning of this word is vegetal fibre.

Auxin emerges as a plant-specific neurotransmitter. Roots are specialized not only for the uptake of nutrients, but also seem to support neuronal-like activities based on plant synapses. Vascular elements allow the rapid spread of hydraulic signals and action potentials, resembling nerves. Plants are capable of learning and make decisions about their future activities according to the actual environmental conditions. It is obvious that they possess a complex apparatus for the storage and processing of information.

Charles Darwin

There is no fundamental difference between man and animals in their ability to feel pleasure and pain, happiness, and misery. 

Vitamin B12 Cobalamin

Vitamin B12, also called cobalamin, is a water-soluble vitamin that has a key role in the normal functioning of the brain and nervous system, and the formation of red blood cells. It is involved in the metabolism of every cell of the human body, especially affecting DNA synthesis, fatty acid and amino acid metabolism.

No fungi, plants, nor animals (including humans) are capable of producing vitamin B12. Only bacteria and archaea have the enzymes needed for its synthesis. Proved food sources of B12 are animal products (meat, fish, dairy products). Some research states that certain non-animal products possibly can be a natural source of B12 because of bacterial symbiosis.

B12 is the largest and most structurally complicated vitamin and can be produced industrially only through a bacterial fermentation-synthesis. This synthetic B12 is used to fortify foods and sold as a dietary supplement.

Vitamin B12 consists of a class of chemically related compounds (vitamers), all of which show pharmacological activity. It contains the biochemically rare element cobalt (chemical symbol Co). The vitamer is produced by bacteria as hydroxocobalamin, but conversion between different forms of the vitamin occurs in the body after consumption

B12 aids in lowering homocysteine levels and may lower the risk of heart disease. 

Recommended daily amount: 2.4 mcg

Example sources: fortified cereals, doenjang and chunggukjang (fermented soybeans), nori (seaweed). Apple