Many rumors about Mars' M&Ms have been circulating throughout the decades. The green M&Ms were thought to be aphrodisiacs. If the last M&M was red, they tell you to make a wish and it will come true. If it was yellow, then you'll be sick. Orange M&Ms were for good luck, and brown M&Ms were bad luck.
The idea that green M&Ms were aphrodisiacs emerged from an urban legend in the 70s, when students were apparently giving them to their crushes or lovers. It is not exactly known why the green ones specifically were picked out, but some suggest it was because green was believed to represent healing and fertility.
Despite denying that these stories originated from them, Mars decided to take advantage of the rumors and released a few ads in 2001 titled "What is it about the green ones". Later, Mars made a Valentine's Day promotion in 2008, featuring bags of all-green M&Ms, along with the usual all-red and all-pink bags.
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