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Estimated Average Requirement (EAR) and Recommended Dietary Allowance (RDA) for amino acids (protein) for healthy adults 19 y and older, mg/kg/day:

  • Estimated Average Requirement (EAR): average, estimated to meet the requirements of 50%.
  • Recommended Dietary Allowance (RDA): average, sufficient to meet the nutrient requirements of nearly all.
Amino Acids EAR RDA
phenylalanine + tyrosine 27 33
valine 19 24
threonine 16 20
tryptophan 4 5
methionine + cysteine 15 19
leucine 34 42
isoleucine 15 19
lysine 31 38
histidine 11 14
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Dhammika Sutta

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