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    <title>Comments on: Phenylalanine</title>
    <description>National Nutrition Health Supplements and Health Concerns Articles</description>
    <pubDate>Fri, 17 Jul 2026 09:12:57 +0000</pubDate>
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      <title>By: National Nutrition</title>
      <description><![CDATA[Hello Rachel, 
Excellent comment and glad you enjoyed this article and re-learning some interesting facts. If you'd like to continue learning about sweeteners, check out this article: <a href="https://www.nationalnutrition.ca/articles/supplements/sugar-artificial-sweeteners-natural-sources/" rel="noopener" target="_blank">https://www.nationalnutrition.ca/articles/supplements/sugar-artificial-sweeteners-natural-sources/</a>]]></description>
      <pubDate>Thu, 04 Jul 2024 16:24:21 +0000</pubDate>
      <link>https://www.nationalnutrition.ca/articles/supplements/phenylallanine/#comment-7587</link>
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      <author>natasha@nationalnutrition.ca (National Nutrition)</author>
      <dc:creator>National Nutrition</dc:creator>
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      <title>By: Rachel Rock</title>
      <description><![CDATA[I thought that L amino acids were the biologically active ones: is D-phenylallanine found naturally and if not, I am curious how it was discovered! Anyway, it is very interesting how the two stereoisomers can have such different biological effects (eg painkiller versus protein and brain chemical component). Also, thank you for reminding me that aspartame contains penylallanine and aspartic acid: I had almost forgotten that little factoid and like to stay up to date on sweeteners so good to know! :)]]></description>
      <pubDate>Mon, 15 Apr 2024 06:22:44 +0000</pubDate>
      <link>https://www.nationalnutrition.ca/articles/supplements/phenylallanine/#comment-6669</link>
      <guid>https://www.nationalnutrition.ca/articles/supplements/phenylallanine/#comment-6669</guid>
      <author>scoeruleus@gmail.com (Rachel Rock)</author>
      <dc:creator>Rachel Rock</dc:creator>
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