Answers.Body: <p>There is a table of amino acid composition in beers on page 105 of <a href="http://img-srv.dtcbuilder.com/engine/builder/images/2/8/6/9/3/5/file/2.pdf" rel="noreferrer">Beer: Health and Nutrition (C. W. Bamforth, 2004)</a> (page 119 of the overall PDF):</p>
  
  <p><img src="https://i.sstatic.net/6qkdf.png" alt="enter image description here"></p>
  
  <p>Other than that, I cannot find any nutritional breakdowns that include vitamins for stouts (and porters, in general). However, as far as micronutrients are concerned, there may not be as great a difference between stouts and other ales as one might think, since, despite the <em>perceptibly</em> large differences in color and taste, the ingredients and processes in brewing are largely the same. Here are some findings on beer in general:</p>
  
  <p>Querying <a href="http://ndb.nal.usda.gov/ndb/foods?max=100&amp;qlookup=alcohol" rel="noreferrer">alcohol on USDA's National Nutrient Database</a> yields breakdowns for</p>
  
  <ul>
  <li>Alcoholic beverage, beer, light</li>
  <li>Alcoholic beverage, beer, regular, all</li>
  <li>Alcoholic beverage, beer, regular, BUDWEISER</li>
  <li>Alcoholic beverage, beer, light, BUDWEISER SELECT</li>
  <li>Alcoholic beverage, beer, light, BUD LIGHT</li>
  <li>Alcoholic beverage, beer, light, MICHELOB ULTRA</li>
  </ul>
  
  <p>Here's a screenshot, because the host doesn't always resolve for me for some reason:</p>
  
  <p><img src="https://i.sstatic.net/i5jan.png" alt="Screenshot of USDA query."></p>
  
  <p>I'm willing to bet that <a href="http://www.ucc.ie/en/ifcdb/accessthedatabase/" rel="noreferrer">The Irish Food Composition Database</a> has a similar report on Guinness, but the document must be <a href="http://sites.fastspring.com/eurofir/product/eurofirebookcollection_ireland" rel="noreferrer">purchased for 15.00€</a> from <a href="http://www.eurofir.org/?page_id=257" rel="noreferrer">EuroFIR</a>. According to a table of contents viewable in <a href="http://www.eurofir.org/wp-content/uploads/EuroFIR%20AISBL/e-books/EuroFIR_AISBL_ebook_Ireland_Demo.pdf" rel="noreferrer">the demo link</a>, the document should contain compositions of 57 manufactured beverages.</p>
  
  <p>Perhaps you can infer some properties of Guinness by knowing its ingredients and process and also knowing how these ingredients and processes affect micronutrient levels.</p>
  
  <p>According to <a href="http://onlinelibrary.wiley.com/doi/10.1002/j.2050-0416.1946.tb01573.x/pdf" rel="noreferrer">this paper</a><sup>1</sup>, as far as major B vitamins are concerned,</p>
  
  <ul>
  <li><p>beer contains very little thiamine (B<sub>1</sub>), of which malting the barley causes a slight loss, but otherwise stays intact through the rest of the brewing operations,</p></li>
  <li><p>riboflavin (B<sub>2</sub>) increases during the malting and brewing processes, resulting in nutritionally significant amounts (<em>e.g.</em> seven pints supplying total daily requirements),</p></li>
  <li><p>nicotinic acid (niacin, B<sub>3</sub>) fluctuates throughout the malting and brewing process, but also results in nutritionally significant amounts (<em>e.g.</em> three-and-a-half to four pints supplying total daily requirements).</p></li>
  </ul>
  
  <p>This <a href="http://journals.cambridge.org/download.php?file=%2FBJN%2FBJN83_04%2FS0007114500000490a.pdf&amp;code=d1547300812aec1791f4e05f6aebbcf2" rel="noreferrer">study</a><sup>2</sup> measured phylloquinone (K<sub>1</sub>) composition of beers, specifically a "bitter," a lager, and Guinness, and concluded only trace amounts in each.</p>
  
  <p><sup><sup>1</sup> Stringer, W. J. Vitamins in Beer. Journal of the Institute of Brewing. 2013.</sup></p>
  
  <p><sup><sup>2</sup> Bolton-Smith, C. et al. Compilation of a provisional UK database for the phylloquinone (vitamin K<sub>1</sub>) content of foods. British Journal of Nutrition. 2000.</sup></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-07-14T23:46:21.707Z
Answers.LastActivityDate: 2014-07-14T23:46:21.707Z
Answers.UserDisplayName: Andrew Cheong
Body: <p>I can only find (on their website, and on other nutrition websites) the macronutrients of Guinness.</p>
  
  <p>Can someone provide a specific breakdown of micronutrient information for Guinness, or another similar stout?</p>
  
  <p>By micronutrients I mean vitamins, minerals, amino acids, etc.</p>
  
Tags: <stout><porter><nutrition>
Title: What is the micronutritional value of stouts such as Guinness?
UserDisplayName: Othya
ThreadText: # What is the micronutritional value of stouts such as Guinness?
  
  (Asked by: username_0 on 2014-07-14)
  
  I can only find (on their website, and on other nutrition websites) the macronutrients of Guinness.
  
  Can someone provide a specific breakdown of micronutrient information for Guinness, or another similar stout?
  
  By micronutrients I mean vitamins, minerals, amino acids, etc.
  
  **Tags:** stout, porter, nutrition
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2014-07-14. Score: 8 | Accepted answer
  
  There is a table of amino acid composition in beers on page 105 of [Beer: Health and Nutrition (C. W. Bamforth, 2004)](http://img-srv.dtcbuilder.com/engine/builder/images/2/8/6/9/3/5/file/2.pdf) (page 119 of the overall PDF):
  
  ![enter image description here](https://i.sstatic.net/6qkdf.png)
  
  Other than that, I cannot find any nutritional breakdowns that include vitamins for stouts (and porters, in general). However, as far as micronutrients are concerned, there may not be as great a difference between stouts and other ales as one might think, since, despite the *perceptibly* large differences in color and taste, the ingredients and processes in brewing are largely the same. Here are some findings on beer in general:
  
  Querying [alcohol on USDA's National Nutrient Database](http://ndb.nal.usda.gov/ndb/foods?max=100&qlookup=alcohol) yields breakdowns for
  
  * Alcoholic beverage, beer, light
  * Alcoholic beverage, beer, regular, all
  * Alcoholic beverage, beer, regular, BUDWEISER
  * Alcoholic beverage, beer, light, BUDWEISER SELECT
  * Alcoholic beverage, beer, light, BUD LIGHT
  * Alcoholic beverage, beer, light, MICHELOB ULTRA
  
  Here's a screenshot, because the host doesn't always resolve for me for some reason:
  
  ![Screenshot of USDA query.](https://i.sstatic.net/i5jan.png)
  
  I'm willing to bet that [The Irish Food Composition Database](http://www.ucc.ie/en/ifcdb/accessthedatabase/) has a similar report on Guinness, but the document must be [purchased for 15.00€](http://sites.fastspring.com/eurofir/product/eurofirebookcollection_ireland) from [EuroFIR](http://www.eurofir.org/?page_id=257). According to a table of contents viewable in [the demo link](http://www.eurofir.org/wp-content/uploads/EuroFIR%20AISBL/e-books/EuroFIR_AISBL_ebook_Ireland_Demo.pdf), the document should contain compositions of 57 manufactured beverages.
  
  Perhaps you can infer some properties of Guinness by knowing its ingredients and process and also knowing how these ingredients and processes affect micronutrient levels.
  
  According to [this paper](http://onlinelibrary.wiley.com/doi/10.1002/j.2050-0416.1946.tb01573.x/pdf)1, as far as major B vitamins are concerned,
  
  * beer contains very little thiamine (B1), of which malting the barley causes a slight loss, but otherwise stays intact through the rest of the brewing operations,
  * riboflavin (B2) increases during the malting and brewing processes, resulting in nutritionally significant amounts (*e.g.* seven pints supplying total daily requirements),
  * nicotinic acid (niacin, B3) fluctuates throughout the malting and brewing process, but also results in nutritionally significant amounts (*e.g.* three-and-a-half to four pints supplying total daily requirements).
  
  This [study](http://journals.cambridge.org/download.php?file=%2FBJN%2FBJN83_04%2FS0007114500000490a.pdf&code=d1547300812aec1791f4e05f6aebbcf2)2 measured phylloquinone (K1) composition of beers, specifically a "bitter," a lager, and Guinness, and concluded only trace amounts in each.
  
  1 Stringer, W. J. Vitamins in Beer. Journal of the Institute of Brewing. 2013.
  
  2 Bolton-Smith, C. et al. Compilation of a provisional UK database for the phylloquinone (vitamin K1) content of foods. British Journal of Nutrition. 2000.
  
  
  ---
  
  