Derived Food Components
                                               
        

When the tagnames described in this chapter are
used in interchange files, they are all
subsidiary to the <DRVD-COMP> element.

<AAAN>    amino acids, total aromatic; expressed
          per quantity of nitrogen
     Unit: mg/g nitrogen
      Comments: Phenylalanine plus tyrosine
          only, in spite of the fact that
          tryptophan is also chemically
          aromatic.
     Tables: EA, SWD

<AAAP>    amino acids, total aromatic; expressed
          per quantity of protein
     Unit: mg/100 g protein
      Comments: Phenylalanine plus tyrosine
          only, in spite of the fact that
          tryptophan is also chemically
          aromatic.

<AAET8->essential to total amino acid ratio;
               includes the eight basic essential
               amino acids: isoleucine, leucine,
               lysine, methionine, phenylalanine,
               threonine, tryptophan, and valine
      Unit: %  (The use of <UNIT/> is
          prohibited with this tagname; the
          value must be expressed as a
          percentage.)
     Synonym: E/T
      Comments: See page ? for a discussion
          of the denominator of this ratio.

<AAET10A>essential to total amino acid ratio;
               includes the eight basic essential
               amino acids plus arginine and
               histidine
      Unit: %  (The use of <UNIT/> is
          prohibited with this tagname; the
          value must be expressed as a
          percentage.)
     Synonym: E/T
      Comments: Arginine and histidine are
          included in this essential amino acid
          total because they are essential for
          infants.  See page ? for a discussion
          of the denominator of this ratio.

<AAET10B>
      essential to total amino acid ratio;
          includes the eight basic essential amino
          acids plus cystine and tyrosine
      Unit: %  (The use of <UNIT/> is prohibited
          with this tagname; the value must be
          expressed as a percentage.)
     Synonym: E/T
      Comments: Cystine and tyrosine are included
          in this essential amino acid total because
          of their sparing effect on methionine and
          phenylalanine respectively.  See page ?
          for a discussion of the denominator of
          this ratio.

<AAET12>
      essential to total amino acid ratio;
          includes the eight basic essential amino
          acids plus arginine, histidine, cystine,
          and tyrosine
      Unit: %  (The use of <UNIT/> is prohibited
          with this tagname; the value must be
          expressed as a percentage.)
     Synonym: E/T
      Comments: Arginine and histidine are
          included in this essential amino acid
          total because they are essential for
          infants; cystine and histidine are
          included in the total because of their
          sparing effects on methionine and
          phenylalanine respectively.  See page ?
          for a discussion of the denominator of
          this ratio.
     Tables: ETH

<AAET->
      essential to total amino acid ratio;
          neither the numerator (which amino acids
          are considered essential) nor the
          denominator (which amino acids are
          included in the total) is specified
      Unit: %  (The use of <UNIT/> is prohibited
          with this tagname; the value must be
          expressed as a percentage.)
     Synonym: E/T
      Comments: See page ? for a discussion of
          the denominator of this ratio.

<AAE8N>amino acids, total essential;
               expressed per quantity of nitrogen;
               includes the eight basic essential
               amino acids: isoleucine, leucine,
               lysine, methionine, phenylalanine,
               threonine, tryptophan, and valine
     Unit: mg/g nitrogen

<AAE8P>amino acids, total essential;
               expressed per quantity of protein;
               includes the eight basic essential
               amino acids: isoleucine, leucine,
               lysine, methionine, phenylalanine,
               threonine, tryptophan and valine
     Unit: mg/100 g protein

<AAE10AN>amino acids, total essential;
               expressed per quantity of nitrogen;
               includes the eight basic essential
               amino acids plus arginine and
               histidine
     Unit: mg/g nitrogen
      Comments: Arginine and histidine are
          included in this total essential
          amino acid value because they are
          essential for infants.

<AAE10AP>amino acids, total essential;
               expressed per quantity of protein;
               includes the eight basic essential
               amino acids plus arginine and
               histidine
     Unit: mg/100 g protein
      Comments: Arginine and histidine are
          included in this total essential
          amino acid value because they are
          essential for infants.

<AAE10BN>amino acids, total essential;
               expressed per quantity of nitrogen;
               includes the eight basic essential
               amino acids plus cystine and
               tyrosine
     Unit: mg/g nitrogen
      Comments: Cystine and tyrosine are
          included in this total essential
          amino acid value because of their
          sparing effects on methionine and
          phenylalanine respectively.

<AAE10BP>
      amino acids, total essential; expressed per
          quantity of protein; includes the eight
          basic essential amino acids plus cystine
          and tyrosine
     Unit: mg/100 g protein
      Comments: Cystine and tyrosine are included
          in this total essential amino acid value
          because of their sparing effects on
          methionine and phenylalanine respectively.

<AAE12N>
      amino acids, total essential; expressed per
          quantity of nitrogen; includes the eight
          basic essential amino acids plus arginine,
          histidine, cystine, and tyrosine
     Unit: mg/g nitrogen
      Comments: Arginine and histidine are
          included in this total essential amino
          acid value because they are essential for
          infants; cystine and tyrosine are included
          because of their sparing effects on
          methionine and phenylalanine respectively.
     Tables: ETH, NE, EA

<AAE12P>
      amino acids, total essential; expressed per
          quantity of protein; includes the eight
          basic essential amino acids plus arginine,
          histidine, cystine, and tyrosine
     Unit: mg/100 g protein
      Comments: Arginine and histidine are
          included in this total essential amino
          acid value because they are essential for
          infants; cystine and tyrosine are included
          because of their sparing effects on
          methionine and phenylalanine respectively.

<AAEN->
      amino acids, total essential; expressed per
          quantity of nitrogen; unknown which amino
          acids are included in the total value
     Unit: mg/g nitrogen

<AAEP->
      amino acids, total essential; expressed per
          quantity of protein; unknown which amino
          acids are included in the total value
     Unit: mg/100 g protein

<AALB>
     limiting amino acid; determined
     through biological experiment
      Unit: None  (The use of <UNIT/> is
          prohibited with this tagname since no
          unit is required for its value.)
      Comments: Two pieces of data are
          associated with the tagname <AALB>. 
          The first is the tagname of the
          limiting amino acid; the second is a
          keyword identifying the animal used
          in the biological experiments which
          determined the limiting amino acid.
      Keywords: The following keywords are
          available for identifying the animal
          in which the biological experiments
          were conducted:
     MAN  experiments conducted with human
     subjects
     RAT  experiments conducted with rats

<AALC>
     limiting amino acid; determined through
     calculation
      Unit: None  (The use of <UNIT/> is
          prohibited with this tagname since no unit
          is required for its value.)
      Comments: The limiting amino acid is
          determined by comparing the quantity of
          each essential amino acid in the food to
          the quantity of the same amino acid in a
          reference protein or amino acid mixture. 
          The amino acid found in the lowest ratio
          is the limiting amino acid.
          Two data items are associated with
          tagname <AALB>.  The first is the tagname
          of the limiting amino acid; the second is
          a keyword identifying the reference
          protein or amino acid pattern used in
          calculation of the chemical (amino acid)
          score.
      Keywords: The keywords to designate the
          reference pattern are identical to those
          for the chemical score.  See tagname
          <CHEMSC> on page 37.
     Tables: EA
      Example: In the FAO Food Composition Table
          for Use in East Asia, lysine is listed as
          the limiting amino acid in sesame seeds. 
          This determination was made through
          calculations of chemical score using
          the FAO reference protein pattern
          recommended in 1973.  Therefore, the
          <AALC> tagname would be used to
          convey this information in the
          following manner:
               <AALC> LYS FAO73 </AALC>
      Note: In this example, </AALC> is an
          end-tag required in interchange
          format to indicate the end of the
          information about the limiting amino
          acid.  See the INFOODS Data
          Interchange Handbook for details on
          interchange format.

<AASN>    amino acids, total sulphur-containing;
          expressed per quantity of nitrogen
     Unit: mg/g nitrogen
     Comments: Cystine plus methionine.
     Tables: NE, EA, SWD

<AASP>amino acids, total sulphur-containing;
               expressed per quantity of protein
     Unit: mg/100 g protein
     Comments: Cystine plus methionine.

<AATN>amino acids, total; expressed per
               quantity of nitrogen
     Unit: mg/g nitrogen
     Tables: ETH, NE, EA

<AATP>amino acids, total; expressed per
               quantity of protein
     Unit: mg/100 g protein

<ALAN>    alanine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, ETH, NE, EA, DAN, SWD

<ALAP>    alanine; expressed per quantity of
          protein
     Unit: mg/100 g protein

<ARGN>    arginine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<ARGP>
     arginine; expressed per quantity of protein
     Unit: mg/100 g protein

<ASNN>
     asparagine; expressed per quantity of
     nitrogen
     Unit: mg/g nitrogen
     Tables: MW, ETH, NE, EA

<ASNP>
     asparagine; expressed per quantity of
     protein
     Unit: mg/100 g protein

<ASPN>
     aspartic acid; expressed per quantity of
     nitrogen
     Unit: mg/g nitrogen
     Tables: MW, ETH, NE, EA, DAN, SWD

<ASPP>
     aspartic acid; expressed per quantity of
     protein
     Unit: mg/100 g protein

<CHEMSC>
     chemical score
      Unit: None  (The chemical score should be
          expressed as a ratio, not as a percentage
          value.  Also, the use of <UNIT/> is
          prohibited with this tagname since no unit
          is required.)
     Synonyms: protein score, amino acid score
      Comments: Chemical score is the ratio of
          the quantity of the limiting amino acid in
          the food per quantity of this same amino
          acid in the protein of egg or a standard
          amino acid reference mixture.
      Keywords: Three data items are associated
          with the tagname <CHEMSC>: the calculated
          chemical score, a keyword to identify the
          reference protein or amino acid mixture
          that was used in determining the chemical
          score, and an optional second keyword to
          indicate the basis of the calculation. 
          The available values of the first keyword
          are:
      EGG  egg protein, as described by Block and
          Mitchell (?) or an equivalent method.
      MILK  human milk protein
      FAO57  reference protein pattern based
          on human amino acid requirements and
          recommended by FAO in 1957 (?)
      FAO65  reference protein pattern based
          on egg protein and suggested by the
          Joint FAO/WHO Expert Committee on
          Energy and Protein Requirements in
          1965 (?)
      FAO73  reference protein pattern based
          on human amino acid requirements and
          suggested by the Joint FAO/WHO Expert
          Committee on Energy and Protein
          Requirements in 1973 (?)
      Note: Additional keywords will be
          added as reference mixtures are
          defined and used in food composition
          data bases.
      Keywords: If it is known whether the
          calculation is based on values
          determined with respect to total
          protein or with respect to total
          nitrogen, this can be specified with
          an additional keyword, whose possible
          values are:
      N  values calculated per gram of
          nitrogen in test mixture
      P  values calculated per gram of
          protein in test mixture
     See chapter 3 of Pellett and Young (?)
     for additional discussion.
     Tables: ETH, EA
      Example: In the FAO Food Composition
          Table For Use in East Asia, the
          chemical score for sesame seeds is
          listed as 58 (this is a percentage:
          0.58 x 100).  The value was
          calculated using the 1973 FAO
          reference protein pattern.  This
          information would be conveyed using
          the <CHEMSC> tagname in the following
          manner:
               <CHEMSC> 0.58 FAO73 </CHEMSC>
      Note: In this example, </CHEMSC> is an
          end-tag required in interchange
          format to indicate the end of the
          chemical score information.  See the
          INFOODS Data Interchange Handbook for
          details on interchange format.

<CYSN>
     cystine; expressed per quantity of nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<CYSP>
     cystine; expressed per quantity of protein
     Unit: mg/100 g protein

<DEN>  density
     Unit: mass per unit volume, unit usually g/cubic cm

<ENERPA>
     energy, percent contributed by alcohol
      Unit: %  (The use of <UNIT/> is prohibited
          with this tagname; the value must be
          expressed as a percentage.)

<ENERPC>
     energy, percent contributed by carbohydrate
      Unit: %  (The use of <UNIT/> is prohibited
          with this tagname; the value must be
          expressed as a percentage.)

<ENERPF>
     energy, percent contributed by fat
      Unit: %  (The use of <UNIT/> is prohibited
          with this tagname; the value must be
          expressed as a percentage.)

<ENERPP>
     energy, percent contributed by protein
      Unit: %  (The use of <UNIT/> is prohibited
          with this tagname; the value must be
          expressed as a percentage.)

<F4D0F>
     fatty acid 4:0; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: butyric acid; tetranoic acid
     Tables: MW, FRN, DAN, SWD

<F5D0F>
     fatty acid 5:0
     Unit: g/100g total fatty acid

<F6D0F>
     fatty acid 6:0; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: caproic acid; hexanoic acid
     Tables: MW, FRN, DAN, SWD

<F8D0F>   fatty acid 8:0; expressed per quantity
          of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: caprylic acid; octanoic acid
     Tables: MW, FRN, DAN, SWD

<F10D0F>  fatty acid 10:0; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: capric acid; decanoic acid
     Tables: MW, FRN, DAN, SWD

<F12D0F>  fatty acid 12:0; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: lauric acid; dodecanoic acid
     Tables: MW, NE, FRN, DAN, SWD

<F13D0F>  fatty acid 13:0; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: tridecanoic acid
     Tables: FRN

<F14D0F>  fatty acid 14:0; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: myristic acid; tetradecanoic
     acid
     Tables: MW, NE, FRN, DAN, SWD

<F15D0F>  fatty acid 15:0; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: pentadecylic acid;
     pentadecanoic acid
     Tables: FRN, DAN

<F16D0F>  fatty acid 16:0; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: palmitic acid; hexadecanoic
     acid
     Tables: MW, NE, FRN, DAN, SWD

<F17D0F>
     fatty acid 17:0; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: margaric acid; heptadecanoic acid
     Tables: FRN, DAN

<F18D0F>
     fatty acid 18:0; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: stearic acid; octadecanoic acid
     Tables: MW, NE, FRN, DAN, SWD

<F19D0F>
     fatty acid 19:0
     Unit: g/100g total fatty acid,
     nonadecanoic acid

<F20D0F>
     fatty acid 20:0; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: arachidic acid; eicosanoic acid
     Tables: MW, FRN, DAN, SWD

<F21D0F>
     fatty acid 21:0
     Unit: g/100g total fatty acid

<F22D0F>
     fatty acid 22:0; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: behenic acid; docosanoic acid
     Tables: MW, FRN, DAN, SWD

<F23D0F>
     fatty acid 23:0; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: tricosanoic acid
     Tables: FRN

<F24D0F>
     fatty acid 24:0; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: lignoceric acid; tetracosanoic
     acid
     Tables: MW, FRN


<F10D1F>
     fatty acid 10:1; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Tables: NZ

<F12D1F>
     fatty acid 12:1; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: lauroleic acid
     Tables: FRN

<F14D1F>
     fatty acid 14:1; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: myristoleic acid; tetradecenoic
     acid
     Tables: FRN, DAN

<F15D1F>
     fatty acid 15:1; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: pentadecenoic acid
     Tables: FRN, DAN

<F15D1N9F>
     fatty acid 15:1 n-9
     Unit: g/100g total fatty
     acid

<F16D1F>
     fatty acid 16:1; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: palmitoleic acid; hexadecenoic
     acid
     Tables: MW, NE, FRN, DAN, SWD

<F17D1F>
     fatty acid 17:1; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: heptadecenoic acid
     Tables: FRN, DAN

<F18D1F>
     fatty acid 18:1; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: oleic acid; octadecenoic acid
     Tables: FRN, DAN, SWD

<F18D1N7F>
      fatty acid 18:1 n-7; expressed per
      quantity of total fatty acids
      Unit: g/100 g fatty acid
      Tables: NZ

<F18D1CN9F>
     fatty acid 18:1 cis n-9
     Unit: g/100g total fatty acid

<F18D1N9F>fatty acid 18:1 n-9; expressed
                    per quantity of total fatty acids
     Unit: g/100 g fatty acid
     Tables: NZ

<F18D1TN9F>
      fatty acid trans 18:1 n-9; expressed
      per quantity of total fatty acids
      Unit: g/100 g fatty acid
      Synonyms: elaidic acid; octadecenoic
      acid
      Tables: MW, NE, FRN

<F19D1N7F>
     fatty acid 19:1 n-7
     Unit: g/100g total fatty acid

<F20D1F>
     fatty acid 20:1; expressed per
     quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: gadoleic acid; eicosenoic
     acid
     Tables: MW, NE, FRN, DAN, SWD

<F20D1N7F>
     fatty acid 20:1 n-7
     Unit: g/100g total fatty acid

<F20D1N9F>
     fatty acid 20:1 n-9
     Unit: g/100g total fatty acid

<F20D1N11F>
     fatty acid 20:1 n-11
     Unit: g/100g total fatty acid

<F22D1F>
     fatty acid 22:1; expressed per
     quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: erucic acid; cetoleic acid;
     docosenoic acid
     Tables: MW, NE, FRN, DAN, SWD

<F22D1CN9F>
     fatty acid cis 22:1 n-9; expressed
     per quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: erucic acid; docosenoic acid
     Tables: FRN, SWD

<F22D1N9F>
     fatty acid 22:1 n-9
     Unit: g/100g total fatty acid

<F22D1TN9F>
     fatty acid trans 22:1 n-9;
     expressed per quantity of total fatty
     acids
     Unit: g/100 g fatty acid
     Synonyms: brassidic acid
     Tables: FRN

<F23D1F>fatty acid 23:1; expressed per
               quantity of total fatty acids
     Unit: g/100 g fatty acid
     Tables: NZ

<F24D1F>
     fatty acid 24:1; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Tables: FRN

<F16D2N4F>
     fatty acid 16:2 n-4
     Unit: g/100g total fatty acid

<F16D2N7F>
     fatty acid 16:2 n-7
     Unit: g/100g total fatty acid

<F16D3N3F>
     fatty acid 16:3 n-3
     Unit: g/100g total fatty acid

<F16D3N4F>
     fatty acid 16:3 n-4
     Unit: g/100g total fatty acid

<F16D4N1F>
     fatty acid 16:4 n-1
     Unit: g/100g total fatty acid

<F16D4N4F>
     fatty acid 16:4 n-4
     Unit: g/100g total fatty acid

<F18D2F>
     fatty acid 18:2; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Tables: NZ

<F18D2CN3F>
     fatty acid 18:2cis n-3
     Unit: g

<F18D2CN6F>
     fatty acid cis,cis 18:2 n-6; expressed
     per quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: linoleic acid; octadecadienoic
     acid
     Tables: MW, NE, FRN, DAN, SWD

<F18D2N4F>
     fatty acid 18:2 n-4
     Unit: g/100g total fatty acid

<F18D2N6F>
     fatty acid 18:2, n-6
     Unit: g/100g total fatty acid

<F18D2TN6F>
     fatty acid 18:2trans n-6
     Unit: g/100g total fatty acid

<F18D2N9F>
     fatty acid 18:2 n-9
     Unit: g/100g total fatty acid

<F18D3F>
      fatty acid 18:2; expressed per quantity of
          total fatty acids
     Unit: g/100 g fatty acid
     Tables: NZ

<F18D3N3F>
     fatty acid 18:3 n-3; expressed per
     quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: alpha-linolenic acid;
     octadecatrienoic acid
     Tables: MW, NE, FRN, DAN, SWD

<F18D3N6F>
     fatty acid 18:3 n-6; expressed per
     quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: gamma-linolenic acid
     Tables: FRN

<F18D4F>
     fatty acid 18:4; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: parinaric acid; stearidonic acid;
     octadecatetraenoic acid
     Tables: NE, FRN

<F18D4N3F>     fatty acid 18:4 n-3; expressed
               per quantity of total fatty acids
     Unit: g/100 g fatty acid
     Tables: FRN

<F20D2F>  fatty acid 20:2; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: eicosadienoic acid
     Tables: FRN

<F20D2N6F> fatty acid 20:2 n-6
     Unit: g/100g total fatty acid

<F20D3F>  fatty acid 20:3; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: eicosatrienoic acid
     Tables: FRN, DAN

<F20D3N3F> fatty acid 20:3 n-3
     Unit: g/100g total fatty acid

<F20D3N6F> fatty acid 20:3 n-6
     Unit: g/100g total fatty acid,
     homogammalinolenic

<F20D3N9F> fatty acid 20:3 n-9
     Unit: g/100g total fatty acid

<F20D4F>  fatty acid 20:4; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: arachidonic acid
     Tables: FRN

<F20D4N3F> fatty acid 20:4 n-3
     Unit g/100g total fatty acid

<F20D4N6F>     fatty acid 20:4 n-6; expressed
               per quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: arachidonic acid;
     eicosatetraenoic acid
     Tables: MW, NE, FRN, DAN, SWD

<F20D5F>  fatty acid 20:5; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: eicosapentaenoic acid
     Tables: FRN

<F20D5N3F>     fatty acid 20:5 n-3; expressed
               per quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: eicosapentaenoic acid; EPA;
     timnodonic acid
     Tables: NE, FRN, DAN, SWD

<F21D5N3F> fatty acid 21:5 n-3
     Unit: g/100g total fatty acid

<F22D2F>  fatty acid 22:2; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: docosadienoic acid
     Tables: FRN

<F22D3F>
      fatty acid 22:3; expressed per quantity of
          total fatty acids
     Unit: g/100 g fatty acid
     Tables: NZ

<F22D4F>
     fatty acid 22:4; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: docosatetraenoic acid
     Tables: FRN

<F22D4N3F> fatty acid 22:4 n-3
     Unit: g/100g total fatty acid

<F22D5F>
     fatty acid 22:5; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: docosapentaenoic acid
     Tables: FRN

<F22D5N3F>
     fatty acid 22:5 n-3; expressed per
     quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: docosapentaenoic acid
     Tables: NE, FRN, DAN, SWD

<F22D5N6F>
      fatty acid 22:5 n-6; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid
     Tables: NZ

<F22D6F>
     fatty acid 22:6; expressed per quantity of
     total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: docosahexaenoic acid
     Tables: FRN

<F22D6N3F>
     fatty acid 22:6 n-3; expressed per
     quantity of total fatty acids
     Unit: g/100 g fatty acid
     Synonyms: docosahexaenoic acid; DHA
     Tables: NE, FRN, DAN, SWD

<F24D6>fatty acid 24:6; expressed per
               quantity of total fatty acids
     Unit: g/100 g fatty acid
     Tables: NZ

<F24D6F> fatty acid 24:6 n-6
     Unit: g/100g total fatty acid
     Note: this is a correction to 1993 version where terminal F
     was inadvertantly omitted

<FAESSF>  fatty acids, total essential;
          expressed per quantity of total fatty
          acids
     Unit: g/100 g
     Comments: Linoleic acid plus linolenic
     acid plus arachidonic acid.
     Tables: FRN

<FAFREF>  fatty acids, total free; expressed per
          quantity of total fatty acids
     Unit: g/100 g fatty acid

<FAMSF>fatty acids, total monounsaturated;
               expressed per quantity of total fatty
               acids
     Unit: g/100 g fatty acid
     Tables:NE, FRN, DAN, SWD

<FAPUF>fatty acids, total polyunsaturated;
               expressed per quantity of total fatty
               acids
     Unit: g/100 g fatty acid
     Tables: NE, FRN, DAN, SWD

<FAPUN3F>fatty acids, total n-3
               polyunsaturated; expressed per
               quantity of total fatty acids
     Unit: g/100 g fatty acid

<FAPUN6F>fatty acids, total n-6
               polyunsaturated; expressed per
               quantity of total fatty acids
     Unit: g/100 g fatty acid

<FASATF>  fatty acids, total saturated;
          expressed per quantity of total fatty
          acids
     Unit: g/100 g fatty acid
     Tables: NE, FRN, DAN, SWD

<FATRNF>  fatty acids, total trans; expressed
          per quantity of total fatty acids
     Unit: g/100 g fatty acid

<GLNN>
     glutamine; expressed per quantity of
     nitrogen
     Unit: mg/g nitrogen

<GLNP>
     glutamine; expressed per quantity of
     protein
     Unit: mg/100 g protein

<GLUN>
     glutamic acid; expressed per quantity of
     nitrogen
     Unit: mg/g nitrogen
     Tables: MW, ETH, NE, EA, DAN, SWD

<GLUP>
     glutamic acid; expressed per quantity of
     protein
     Unit: mg/100 g protein

<GLYN>
     glycine; expressed per quantity of nitrogen
     Unit: mg/g nitrogen
     Tables: MW, ETH, NE, EA, DAN, SWD

<GLYP>
     glycine; expressed per quantity of protein
     Unit: mg/100 g protein

<HISN>
     histidine; expressed per quantity of
     nitrogen
     Unit: mg/g nitrogen
     Tables:MW, IND, ETH, NE, EA, DAN, SWD

<HISP>
     histidine; expressed per quantity of
     protein
     Unit: mg/100 g protein

<HYPN>
     hydroxyproline; expressed per quantity of
     nitrogen
     Unit: mg/g nitrogen

<HYPP>
     hydroxyproline; expressed per quantity of
     protein
     Unit: mg/100 g protein

<ILEN>    isoleucine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<ILEP>    isoleucine; expressed per quantity of
          protein
     Unit: mg/100 g protein

<LEUN>    leucine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<LEUP>    leucine; expressed per quantity of
          protein
     Unit: mg/100 g protein

<LYSN>    lysine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<LYSP>    lysine; expressed per quantity of
          protein
     Unit: mg/100 g protein

<METN>    methionine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<METP>    methionine; expressed per quantity of
          protein
     Unit: mg/100 g protein

<NPR>     nitrogen-protein ratio
      Unit: None (The use of <UNIT/> is
          prohibited with this tagname since no
          unit is required for its value.)
      Comment: Determined by dividing total
          nitrogen by total protein.  In most
          cases, if <PROCNT> (cf.) is used with
          the <XN> subtag (for documentation
          purposes there), this value will be
          the same as the <XN> value.
     Tables: NZ

<NPU>     net protein utilization
      Unit: None  (The use of <UNIT/> is
          prohibited with this tagname since no unit
          is required for its value.)
     Synonyms: NPU
      Comments: Net protein utilization is the
          proportion of nitrogen intake that is
          retained.  This value is the product of
          digestibility and the proportion of
          absorbed nitrogen that is retained
          (biological value).
      Keywords: The tagname <NPU> requires two
          data items: the NPU value and a keyword
          identifying the animal used to
          experimentally determine digestiblity and
          biological value.  The available keywords
          are:
     MAN  experiments conducted with human
     subjects
     RAT  experiments conducted with rats
     Tables: USDA 267

<PER>     protein efficiency ratio
      Unit: None  (The use of <UNIT/> is
          prohibited with this tagname since no unit
          is required for its value.)
     Synonyms: PER
      Comments: Protein efficiency ratio is
          defined as weight gain per weight of
          protein eaten.  
      Keywords: The tagname <PER> requires two
          data items: the PER value and a keyword
          identifying the animal used to
          biologically determine this value.  The
          available keywords are:
     MAN  experiments conducted with human
     subjects
     RAT  experiments conducted with rats fed
     10% protein
     Tables: USDA 229

<PH> pH, hydrogen ion concentration
     Unit none

<PHEN>
     phenylalanine; expressed per quantity of
     nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<PHEP>    phenylalanine; expressed per quantity
          of protein
     Unit: mg/100 g protein

<PRON>    proline; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, ETH, NE, EA, DAN, SWD

<PROP>    proline; expressed per quantity of
          protein
     Unit: mg/100 g protein

<SERN>    serine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, ETH, NE, EA, DAN, SWD

<SERP>    serine; expressed per quantity of
          protein
     Unit: mg/100 g protein

<TAUN> Taurine
     Unit: mg/g nitrogen

<THRN>    threonine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, WTH, NE, EA, DAN, SWD

<THRP>    threonine; expressed per quantity of
          protein
     Unit: mg/100 g protein

<TRPN>    tryptophan; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<TRPP>    tryptophan; expressed per quantity of
          protein
     Unit: mg/100 g protein

<TYRN>    tyrosine; expressed per quantity of
          nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<TYRP>    tyrosine; expressed per quantity of
          protein
     Unit: mg/100 g protein

<VALN>
     valine; expressed per quantity of nitrogen
     Unit: mg/g nitrogen
     Tables: MW, IND, ETH, NE, EA, DAN, SWD

<VALP>
     valine; expressed per quantity of protein
     Unit: mg/100 g protein