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Calculate the amount of essential amino acids that are recommended in the diet
based on several factors -  Latest guidelines
Essential Amino acid Calculator - Healthy Individuals  [Dietary Reference Intakes]
Age (1 year or greater):       Gender:
Current weight: 
Check any that apply:
Pregnant
(2nd half of pregnancy only)?         Lactating?

Background

Estimated Average Requirement (EAR): The average daily nutrient intake level that
is estimated to meet the requirements of half of the healthy individuals in a particular life
stage and gender group.

Recommended Dietary Allowance (RDA): The average daily dietary nutrient intake
level that is sufficient to meet the nutrient requirements of nearly all (97-98 percent)
healthy individuals in a particular life stage and gender group.


Classification of amino acids.


arrow Additional information can be found here.

Indispensable  Dispensable  Conditionally 
Indispensable 
Precursors of Conditionally  Indispensable 
Conditionally indispensable is defined as requiring a dietary source when endogenous
synthesis cannot meet metabolic need.   Although histidine is considered indispensable, unlike the other eight indispensable amino acids, it does not fulfill the criteria of reducing protein deposition and inducing negative nitrogen balance promptly upon removal from the diet.
Histidine Alanine  Arginine  Glutamine/glutamate, aspartate 
Isoleucine  Aspartic acid  Cysteine  Methionine, serine 
Leucine  Asparagine  Glutamine  Glutamic acid/ammonia 
Lysine  Glutamic acid  Glycine  Serine, choline 
Methionine  Serine  Proline  Glutamate 
Phenylalanine    Tyrosine  Phenylalanine 
Threonine       
Tryptophan   
Valine       


Boys Ages 14 through 18 Years

BOYS
EAR for 14-18 y
12 mg/kg/day of histidine
17 mg/kg/day of isoleucine
38 mg/kg/day of leucine
35 mg/kg/day of lysine
17 mg/kg/day of methionine + cysteine
31 mg/kg/day of phenylalanine + tyrosine
18 mg/kg/day of threonine
5 mg/kg/day of tryptophan
22 mg/kg/day of valine

BOYS
RDA for 14-18 y
15 mg/kg/day of histidine
21 mg/kg/day of isoleucine
47 mg/kg/day of leucine
43 mg/kg/day of lysine
21 mg/kg/day of methionine + cysteine
38 mg/kg/day of phenylalanine + tyrosine
22 mg/kg/day of threonine
6 mg/kg/day of tryptophan
27 mg/kg/day of valine

Girls Ages 14 through 18 Years

GIRLS
EAR for 14-18 y
12 mg/kg/day of histidine
16 mg/kg/day of isoleucine
35 mg/kg/day of leucine
32 mg/kg/day of lysine
16 mg/kg/day of methionine + cysteine
28 mg/kg/day of phenylalanine + tyrosine
17 mg/kg/day of threonine
4 mg/kg/day of tryptophan
20 mg/kg/day of valine

GIRLS
RDA for 14-18 y
14 mg/kg/day of histidine
19 mg/kg/day of isoleucine
44 mg/kg/day of leucine
40 mg/kg/day of lysine
19 mg/kg/day of methionine + cysteine
35 mg/kg/day of phenylalanine + tyrosine
21 mg/kg/day of threonine
5 mg/kg/day of tryptophan
24 mg/kg/day of valine

Adults Ages 19 Years and Older

EAR FOR ADULTS
19 y and older
11 mg/kg/day of histidine
15 mg/kg/day of isoleucine
34 mg/kg/day of leucine
31 mg/kg/day of lysine
15 mg/kg/day of methionine + cysteine
27 mg/kg/day of phenylalanine + tyrosine
16 mg/kg/day of threonine
4 mg/kg/day of tryptophan
19 mg/kg/day of valine

RDA FOR ADULTS
19 y and older
14 mg/kg/day of histidine
19 mg/kg/day of isoleucine
42 mg/kg/day of leucine
38 mg/kg/day of lysine
19 mg/kg/day of methionine + cysteine
33 mg/kg/day of phenylalanine + tyrosine
20 mg/kg/day of threonine
5 mg/kg/day of tryptophan
24 mg/kg/day of valine

Pregnancy

EAR FOR PREGNANCY
For all ages
15 mg/kg/day of histidine
20 mg/kg/day of isoleucine
45 mg/kg/day of leucine
41 mg/kg/day of lysine
20 mg/kg/day of methionine + cysteine
36 mg/kg/day of phenylalanine + tyrosine
21 mg/kg/day of threonine
5 mg/kg/day of tryptophan
25 mg/kg/day of valine

RDA FOR PREGNANCY
For all ages
18 mg/kg/day of histidine
25 mg/kg/day of isoleucine
56 mg/kg/day of leucine
51 mg/kg/day of lysine
25 mg/kg/day of methionine + cysteine
44 mg/kg/day of phenylalanine + tyrosine
26 mg/kg/day of threonine
7 mg/kg/day of tryptophan
31 mg/kg/day of valine

Lactation

EAR FOR LACTATION
For all ages
15 mg/kg/day of histidine
24 mg/kg/day of isoleucine
50 mg/kg/day of leucine
42 mg/kg/day of lysine
21 mg/kg/day of methionine + cysteine
41 mg/kg/day of phenylalanine + tyrosine
24 mg/kg/day of threonine
7 mg/kg/day of tryptophan
28 mg/kg/day of valine

RDA FOR LACTATION
For all ages
19 mg/kg/day of histidine
30 mg/kg/day of isoleucine
62 mg/kg/day of leucine
52 mg/kg/day of lysine
26 mg/kg/day of methionine + cysteine
51 mg/kg/day of phenylalanine + tyrosine
30 mg/kg/day of threonine
9 mg/kg/day of tryptophan
35 mg/kg/day of valine

Source:
Dietary Reference Intakes For Energy, Carbohydrate, Fiber, Fat, Fatty Acids,Cholesterol, Protein,and Amino Acids, Institute of Medicine of the National Academies, 2002 and 2005, THE NATIONAL ACADEMIES PRESS 500 Fifth Street, N.W. Washington, DC 20001

Disclaimer

All calculations must be confirmed before use. The authors make no claims of the accuracy of the information contained herein; and these suggested doses are not a substitute for clinical judgment. Neither GlobalRPh Inc. nor any other party involved in the preparation of this program shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user's use of or reliance upon this material. PLEASE READ THE DISCLAIMER CAREFULLY BEFORE ACCESSING OR USING THIS SITE. BY ACCESSING OR USING THIS SITE, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS SET FORTH IN THE DISCLAIMER.   Read the disclaimer
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