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Dietary Sources

<p>Tryptophan is a routine constituent of most protein-based foods or dietary proteins. It is particularly plentiful in&nbsp;<a href="http://en.wikipedia.org/wiki/Chocolate" title="Chocolate" >chocolate</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Oat" title="Oat" >oats</a>, dried <a href="http://en.wikipedia.org/wiki/Date_Palm" title="Date Palm" class="mw-redirect" >dates</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Milk" title="Milk" >milk</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Yogurt" title="Yogurt" >yogurt</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Cottage_cheese" title="Cottage cheese" >cottage cheese</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Red_meat" title="Red meat" >red meat</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Egg(food)" title="Egg (food)" >eggs</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Fish" title="Fish" >fish</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Poultry" title="Poultry" >poultry</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Sesame" title="Sesame" >sesame</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Chickpea" title="Chickpea" >chickpeas</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Sunflower_seeds" title="Sunflower seeds" class="mw-redirect" >sunflower seeds</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Pumpkin_seeds" title="Pumpkin seeds" class="mw-redirect" >pumpkin seeds</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Spirulina(dietary_supplement)" title="Spirulina (dietary supplement)" >spirulina</a>, <a href="http://en.wikipedia.org/wiki/Banana" title="Banana" >bananas</a>, and&nbsp;<a href="http://en.wikipedia.org/wiki/Peanut" title="Peanut" >peanuts</a>.<sup id="cite_ref-Tryptophan_background_15-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Tryptophan#cite_note-Tryptophan_background-15" >[16]</a></sup>&nbsp;</p>

<p>

Despite popular belief that&nbsp;<a href="http://en.wikipedia.org/wiki/Turkey_(bird)" title="Turkey (bird)" >turkey</a>&nbsp;has a particularly high amount of tryptophan, the amount of tryptophan in turkey is typical of most poultry.<sup id="cite_ref-USDA_16-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Tryptophan#cite_note-USDA-16" >[17]</a></sup>&nbsp;There is also a myth that plant protein lacks tryptophan; in fact, tryptophan is present in significant amounts in almost all forms of plant protein, and abundant in some.</p>

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<table class="wikitable sortable jquery-tablesorter" >

<caption >Tryptophan (Trp) Content of Various Foods<sup id="cite_ref-USDA_16-1" class="reference" ><a href="http://en.wikipedia.org/wiki/Tryptophan#cite_note-USDA-16" >[17]</a></sup><sup id="cite_ref-Rambali_17-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Tryptophan#cite_note-Rambali-17" >[18]</a></sup></caption>

<thead >

<tr>

<th width="140 pt" class="headerSort" title="Sort ascending" >Food</th>

<th width="240 pt" class="headerSort" title="Sort ascending" >Protein

[g/100 g of food]</th>

<th width="200 pt" class="headerSort" title="Sort ascending" >Tryptophan

[g/100 g of food]</th>

<th width="180 pt" class="headerSort" title="Sort ascending" >Tryptophan/Protein [%]</th>

</tr>

</thead><tbody >

<tr>

<td >egg, white, dried</td>

<td >

<center>81.10</center>

</td>

<td >

<center>1.00</center>

</td>

<td >

<center>1.23</center>

</td>

</tr>

<tr>

<td >spirulina, dried</td>

<td >

<center>57.47</center>

</td>

<td >

<center>0.93</center>

</td>

<td >

<center>1.62</center>

</td>

</tr>

<tr>

<td >cod, atlantic, dried</td>

<td >

<center>62.82</center>

</td>

<td >

<center>0.70</center>

</td>

<td >

<center>1.11</center>

</td>

</tr>

<tr>

<td >soybeans, raw</td>

<td >

<center>36.49</center>

</td>

<td >

<center>0.59</center>

</td>

<td >

<center>1.62</center>

</td>

</tr>

<tr>

<td >cheese, Parmesan</td>

<td >

<center>37.90</center>

</td>

<td >

<center>0.56</center>

</td>

<td >

<center>1.47</center>

</td>

</tr>

<tr>

<td >sesame seed</td>

<td >

<center>17.00</center>

</td>

<td >

<center>0.37</center>

</td>

<td >

<center>2.17</center>

</td>

</tr>

<tr>

<td >cheese, cheddar</td>

<td >

<center>24.90</center>

</td>

<td >

<center>0.32</center>

</td>

<td >

<center>1.29</center>

</td>

</tr>

<tr>

<td >sunflower seed</td>

<td >

<center>17.20</center>

</td>

<td >

<center>0.30</center>

</td>

<td >

<center>1.74</center>

</td>

</tr>

<tr>

<td >pork, chop</td>

<td >

<center>19.27</center>

</td>

<td >

<center>0.25</center>

</td>

<td >

<center>1.27</center>

</td>

</tr>

<tr>

<td >turkey</td>

<td >

<center>21.89</center>

</td>

<td >

<center>0.24</center>

</td>

<td >

<center>1.11</center>

</td>

</tr>

<tr>

<td >chicken</td>

<td >

<center>20.85</center>

</td>

<td >

<center>0.24</center>

</td>

<td >

<center>1.14</center>

</td>

</tr>

<tr>

<td >beef</td>

<td >

<center>20.13</center>

</td>

<td >

<center>0.23</center>

</td>

<td >

<center>1.12</center>

</td>

</tr>

<tr>

<td >salmon</td>

<td >

<center>19.84</center>

</td>

<td >

<center>0.22</center>

</td>

<td >

<center>1.12</center>

</td>

</tr>

<tr>

<td >lamb, chop</td>

<td >

<center>18.33</center>

</td>

<td >

<center>0.21</center>

</td>

<td >

<center>1.17</center>

</td>

</tr>

<tr>

<td >perch, Atlantic</td>

<td >

<center>18.62</center>

</td>

<td >

<center>0.21</center>

</td>

<td >

<center>1.12</center>

</td>

</tr>

<tr>

<td >egg</td>

<td >

<center>12.58</center>

</td>

<td >

<center>0.17</center>

</td>

<td >

<center>1.33</center>

</td>

</tr>

<tr>

<td >wheat flour, white</td>

<td >

<center>10.33</center>

</td>

<td >

<center>0.13</center>

</td>

<td >

<center>1.23</center>

</td>

</tr>

<tr>

<td >baking chocolate, unsweetened</td>

<td >

<center>12.9</center>

</td>

<td >

<center>0.13</center>

</td>

<td >

<center>1.23</center>

</td>

</tr>

<tr>

<td >milk</td>

<td >

<center>3.22</center>

</td>

<td >

<center>0.08</center>

</td>

<td >

<center>2.34</center>

</td>

</tr>

<tr>

<td >rice, white</td>

<td >

<center>7.13</center>

</td>

<td >

<center>0.08</center>

</td>

<td >

<center>1.16</center>

</td>

</tr>

<tr>

<td >oatmeal, cooked</td>

<td >

<center>2.54</center>

</td>

<td >

<center>0.04</center>

</td>

<td >

<center>1.16</center>

</td>

</tr>

<tr>

<td >potatoes, russet</td>

<td >

<center>2.14</center>

</td>

<td >

<center>0.02</center>

</td>

<td >

<center>0.84</center>

</td>

</tr>

<tr>

<td >banana</td>

<td >

<center>1.03</center>

</td>

<td >

<center>0.01</center>

</td>

<td >

<center>0.87</center>

</td>

</tr>

</tbody></table>

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