A 1-pound bag of plain M&M’s chocolate candies contains approximately 500 pieces. Since M&M’s candies, manufactured by Mars Incorporated, are sold by weight, the actual number of pieces varies. The 1-pound bag was originally created as part of the line of M&M’s gift candy dispensers.
One-pound bags are available on the company’s website and through participating local and online retailers. As of 2014, M&M’s candies are available in a variety of sizes, ranging from individual 1.6-ounce bags to bulk 10-pound bags. One serving of M&M’s plain chocolate candies contains 240 calories, 10 grams of fat and 34 grams of protein.