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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.
Educating the mind without educating the heart is no education at all.
The protein digestibility-corrected amino acid score (PDCAAS) has been adopted by FAO/WHO as the preferred method for the measurement of the protein value in human nutrition.
PDCAAS = Amino Acid Score x Digestibility
The method is based on comparison of the concentration of the first limiting essential amino acid in the test protein with the concentration of that amino acid in a reference (scoring) pattern. This scoring pattern is derived from the essential amino acid requirements of the preschool-age child.
Although the principle of the PDCAAS method has been widely accepted, critical questions have been raised in the scientific community:
- the validity of the preschool-age child amino acid requirement values (more than 4 times greater than the EAA requirement for an adult),
- the validity of correction for fecal instead of ileal digestibility,
- the truncation of PDCAAS values to 100%.
The reference scoring pattern was based on studies performed more than 25 years ago on a limited number of 2-year-old children recovering from malnutrition.
According to the current official recommendations, a 2-year old child needs ~ 3x higher essential-to-non-essential amino acid ratio, and needs essential amino acids in different proportions than adult. Methionine/cysteine is the limiting essential amino acids for adults, and for children it is lysine or tryptophan.
The use of fecal digestibility overestimates the nutritional value of a protein because amino acid nitrogen entering the colon is lost for protein synthesis in the body and is, at least in part, excreted in urine as ammonia.