How a 1970's Russian “Red Scare” Set M&M's Mascots Back Twenty Years!
The distribution of colors for plain M&M candies - The DO Loop
M&M's, Chocolate Wiki
Why Did M&Ms Stop Using Red for 10 Years?
My bag of M&M's only has one red one : r/mildlyinteresting
At Mars Inc., 'Fun Size' Chocolate and Right-Size Conglomerate - WSJ
Mars defends artificial colors in M&Ms: They're not 'neurotoxic
World Record for Stacking M&M's Beaten for Third Time in 15 Months
Is Mars, Incorporated Slut-Shaming One of Their M&Ms?
The Strange Reason Red M&M's Vanished For More Than A Decade