Fruitarianism is a diet that is entirely or primarily of fruits in the botanical sense, and possibly nuts and seeds, without animal products. Fruitarianism is a subset of dietary veganism. Fruitarianism may be adopted for different reasons, including ethical, religious, environmental, cultural, economic, and health reasons. There are many varieties of the diet. Some people whose diet consists of 75% or more fruit consider themselves fruitarians.
Some fruitarians will eat only what falls (or would fall) from a plant, that is, that can be harvested without killing or harming the plant. These foods consist primarily of culinary fruits, nuts, and seeds. According to author Adam Gollner, some fruitarians eat only fallen fruit. Some do not eat grains, and some fruitarians do not know it, and some fruitarians feel that it is better for them to eat them, and that they do not have seeds, or any other foods, or any other foods besides juicy fruits. Others believe they should eat only when the plant is eaten. Others eat seeds and some cooked foods. Some fruitarians use the botanical definitions of fruits and consume pulses, such as beans, peas, or other vegetables. Other fruitarians’ diets include raw fruits, dried fruits, nuts, honey and olive oil, or fruits,
Some fruitarians wish, like Jains, to avoid killing anything, including plants, and refer to ahimsa fruitarianism. For some fruitarians, the motivation comes from a fixation on a utopian past, their hope being to return to a predate an agrarian society to when humans were simply gatherers. Another common motivation is the desire to reduce the influence of the body. For others, the appeal of a fruitarian diet comes from the challenge that the restrictive nature of this diet provides.
According to nutritionists, adults must be careful not to follow a fruit-only diet for too long. A fruitarian diet is wholly unsuitable for children (including teens), and several children have died from having fruitarian diets imposed on them.
Fruitarianism is even more restrictive than veganism or raw veganism. Maintaining this diet over a long period can result in dangerous deficiencies, a risk that many fruitarians try to ward off nutritional testing and vitamin injections. The Health Promotion Program at Columbia University reports that a fruitarian diet can cause deficiencies in calcium, protein, iron, zinc, vitamin D, vitamin B (especially B 12), and essential fatty acids. Carbohydrates can be considered as a source of carbohydrates, and they can not be stored in the body. When the body does not take in enough protein, it misses out on amino acids, which are essential to making body tissues which support the growth and maintenance of body tissues. Consuming high levels of fruit also poses a risk to those who are diabetic or pre-diabetic, due to the negative effect that the large amounts of sugar in fruits has on blood sugar levels. These high levels of sugar are the fruit of high risk for tooth decay. Another concern is that fruitarianism is easy because it is easily digested, the body burns quickly, and is hungry again soon after eating. A side effect of the digestibility is that the body will defecate more frequently. Additionally, the Health Promotion Program at Columbia reports that food restrictions in general may lead to hunger, cravings, food obsessions, social disruptions, and social isolation.
Vitamin B 12, a bacterial product, can not be obtained from fruits. According to the US National Institutes of Health “Natural Food Sources of Vitamin B 12 are limited to foods that come from animals.” Like raw vegans who do not consume B 12-fortified foods, for example, fruitarians may need to include a supplement in their diet or risk vitamin B 12 deficiency.
In children, growth and development may be at risk. Some nutritionists state that children should not follow a fruitarian diet. Nutritional problems include severe protein-energy malnutrition, anemia and deficiencies including proteins, iron, calcium, essential fatty acids, raw fiber and a wide range of vitamins and minerals.
Some notable advocates of fruitarianism, or of diets which may be considered fruitarian, or of the disease, are: “Morris Krok, who earlier in his life lived” only on fruit, Krok’s diet of “just fruit”, with dietary practices of fruitarians as varied from the term “fruitarianism”. Diet author Joe Alexander lived for 56 days on juicy fruits.