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Published on Fruitarians.net
Fruitarian ethics, history, worldview and ideas - theoretical and cultural aspects of fruitarianism, fruitarian lifestyle and diet.
Fruitarianism - a quest for optimal ethical ways to live and healthy diets based on fruits and seeds.
Fruitarian system of philosophical thought, the theoretical basis of fruitarianism, rational arguments for and against it, critical discussion, general presentation and definitions.
The way in which fruitarians live: practical ethical choices, environmentally-friendly and healthy behavior, fruitarian ways of daily living, forming relationships, and being active in societies.
Fruitarian diet, based on fruits and seeds of plants, with other additions.
Interesting people answer fruitarian questions.
Discussions, responses and commentary, answers.
Personal philosophy, lifestyle and diet of the author of the site, a long-term fruitarian vegan Lena.
Short knowledge summaries, facts and citations, related to fruitarianism from scientific internet publications, mass media and other seemingly credible online sources, with links.
Not everything that can be counted counts, and not everything that counts can be counted.
Food energy is chemical energy that animals derive from their food and molecular oxygen through the process of cellular respiration. Humans and other animals need a minimum intake of food energy to sustain their metabolism and to drive their muscles.
Organisms derive food energy from carbohydrates, fats and proteins as well as from organic acids, polyols, and ethanol present in the diet. Some diet components that provide little or no food energy, such as water, minerals, vitamins, cholesterol, and fiber, may still be necessary to health and survival for other reasons.
Using the International System of Units, researchers measure energy in joules (J) or in its multiples; the kilojoule (kJ) is most often used for food-related quantities. An older metric system unit of energy, still widely used in food-related contexts, is the "food calorie" or kilocalorie (kcal or Cal), equal to 4.184 kilojoules.
<>Fats and ethanol have the greatest amount of food energy per mass, 37 and 29 kJ/g (8.8 and 6.9 kcal/g), respectively. Proteins and most carbohydrates have about 17 kJ/g (4.1 kcal/g).
Conventional food energy is based on heats of combustion in a bomb calorimeter and corrections that take into consideration the efficiency of digestion and absorption and the production of urine.