Fruitarian diet is fruit and seeds based, and may include other foods, and not only plants (e.g. algae, mushrooms) - to answer a few recent questions at once.
Please, do not assume that fruitarianism is eating sweet fruit only. There are many kinds of fruitarians. From those who avoid seeds, if they can, to those who consider honey and eggs to be ethical choices, depending on the circumstances. Usually, fresh fruits are preferable, but the proportion of cooked foods varies. Some fruitarians soak or sprout seeds, some not. Some eat more greens or root/stem vegetables, others prefer botanical fruit, including non-sweet kinds (like tomatoes, cucumbers, squash).
Most fruitarians have ethical or environmental concerns, some may not, health or performance may be their primary motivation. There are frugans, seasonal fruitarians, freegans, raw vegans or vegetarians with high fruit intake, and so on. Everybody is welcome here :)
There is no ideal food or method, there is no competition for higher ethics or better health. The idea is to present this topic to more people for an ongoing public discussion and to share knowledge and experience.
What do they know-all these scholars, all these philosophers, all the leaders of the world - about such as you? They have convinced themselves that man, the worst transgressor of all the species, is the crown of creation. All other creatures were created merely to provide him with food, pelts, to be tormented, exterminated.
Undernutrition is a form of malnutrition. (Malnutrition also includes overnutrition).
Undernutrition can result from:
inadequate ingestion of nutrients,
loss of nutrients due to diarrhea,
increased nutritional requirements.
Undernutrition progresses in stages: it may develop slowly when it is due to anorexia or very rapidly. First, nutrient levels in blood and tissues change, followed by intracellular changes in biochemical functions and structure. Ultimately, symptoms and signs appear. Diagnosis is by history, physical examination, body composition analysis, and sometimes laboratory tests.
Undernutrition from micronutrient deficiencies, or "hidden hunger", affects over 2 billion people globally and can lead to reduced growth and cognitive development, birth defects, blindness, and overall poor health. Vitamin A deficiency, iron deficiency anaemia and iodine deficiency disorders are among the most common forms of micronutrient malnutrition.