Many sweet-toothed fans were shocked after discovering the meaning behind the name of the iconic candy, M&M's.
The popular treat was invented in 1941, but many consumers still don't know what the 'M' printed on the chocolate actually stands for.
While many speculated the 'M' was to mimic the 'mmm' sound we make when eating something delicious, the answer isn't as cryptic.
It turns out M&M's were named after its creators, Mars and Murrie.
'Mars' is for Forrest E Mars Sr, the son of Mars founder Frank C Mars, who copied the idea after seeing soldiers eating British-made Smarties during the Spanish Civil War. The coloured shell, which is essentially hardened sugar syrup, allowed soldiers to carry the chocolate in warm climates without it melting.
The second 'M' is in honour of Bruce Murrie, son of Hershey president William FR Murrie, who partnered with Mars and helped create the product.
The chocolates were originally given exclusively to soldiers in the US Army fighting during World War II, but went on to become hugely popular and went on wider sale following the war.
Since then, the colourful candy has become a staple movie-watching treat in over 100 countries and has tried its hand in all sorts of crazy new flavours, including popcorn, bubblegum and pretzel.
Fans on social media were shocked at the revelation.
"This is actually some info I haven't seen before. Bravo," one person said.
"I always thought it just stood for 'MMMMMM'," another admitted.
"Damn, learn something new every day," a third said.
