Is guiness vegetarian or not

Guinness beer is not considered vegetarian due to the use of isinglass, a fining agent derived from fish bladders, in its filtration process. However, since 2016, Guinness has been working on a vegetarian-friendly version that does not use isinglass. If you're looking for a vegetarian option, it's advisable to check the label or the brewery's website for the most current information.