All about fruitarianism with a long-term fruitarian, Lena

I composed two lists with a few examples of the fruitarian food sources of zinc: fruits, seeds, seaweeds and mushrooms. You can compare the amounts of zinc in them with the recommended daily allowance of the mineral. RDA is usually around 20% higher than the amount needed for half of the healthy people. 

The RDA (recommended dietary allowance) of zinc for healthy adult women and men is 8 mg a day and 11 mg a day, respectively. 

Examples of high in zinc plant food sources, fruits and seeds: 

  • Sesame seeds, whole, dried (~ 8 mg /100 g or ~ 1/5 of a pound, lb)
  • Pumpkin and squash seeds, dried - pepitas (~ 7 mg /100 g)
  • Pine seeds (~ 6 mg / 100 g) 
  • Sunflower seeds (~ 5 mg /100 g)
  • Tomatoes, sun-dried (~ 2 mg in 100 g)
  • Lentils, sprouted (~ 2 mg in 100 g)
  • Almonds (~ 1 mg zinc in about 25 whole almonds)
  • Green peas, fresh or unfrozen (~ 1 mg zinc in 1 cup)
  • Avocados (~ 1 mg zinc in one bigger fruit)
  • Blackberries (~ 0.8 mg zinc in one cup - 150 g)

Other fruitarian foods high in zinc, algae and mushrooms:

  • Seaweed agar, dried (~ 6 mg zinc in 100 g)
  • Seaweed, spirulina, dried (~ 2 mg zinc in 100 g)
  • Seaweed kelp, raw (~ 1 mg in 100 g)
  • Mushrooms, shiitake (~ 1 mg in 100 g)

George Berkeley

To be is to be perceived.

Protein Digestibility-Corrected Amino Acid Score

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:

  1. the validity of the preschool-age child amino acid requirement values (more than 4 times greater than the EAA requirement for an adult),
  2. the validity of correction for fecal instead of ileal digestibility,
  3. 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.

Fruitarians.net Apple