Guinness Is Good For You*
*This is our myth-buster edition, so maybe best not take that at face value!
To this day, writing the words “Guinness is” into Google will autocomplete to “Guinness is good for you”. The ad campaign proclaiming such launched about a hundred years ago, and was based on Guinness as it was when it was launched another hundred years before that.
Needless to say, none of this was based on modern science.
Is there any grain of truth?
Perhaps its strongest health claim, in terms of what stands up to modern scrutiny, is that it does contain some B vitamins. Famously (as it was once given to pregnant women in Ireland on the strength of such) it contains folate (also known as Vitamin B9). How much?
A 15oz glass of Guinness contains 12.8µg of folate, which is 3.2% of the RDA. In other words, you could get all the folate your body needs by drinking just 32 glasses of Guinness per day.
With that in mind, you might want to get the non-alcoholic version!
“I heard you could live on just Guinness and oranges, because it contains everything but vitamin C?”
The real question is: how long could you live? Otherwise, a facetious answer here could be akin to the “fun fact” that you can drink lava… once.
Guinness is missing many essential amino acids and fatty acids, several vitamins, and many minerals. Exactly what it’s missing may vary slightly from region to region, as while the broad recipe is the same, some processes add or remove some extra micronutrients.
As to what you’d die of first, for obvious reasons there have been no studies done on this, but our money would be on liver failure.
It would also wreak absolute havoc with your kidneys, but kidneys are tricky beasts—you can be down to 10% functionality and unaware that anything’s wrong yet. So we think liver failure would get you first.
(Need that 0.0% alcohol Guinness link again? Here it is)
Fun fact: Top contender in the category of “whole food” is actually seaweed (make sure you don’t get too much iodine, though)!
Or, should we say, top natural contender. Because foods that have been designed by humans to contain everything we need and more for optimized health, such as Huel, do exactly what they say on the tin.
And in case you’re curious…
Read: what bare minimum nutrients do you really need, to survive?
