According to the traditional custom in China, wedding candy is a gift given to relatives and friends at the wedding, which represents the couple's thanks and blessings to the guests. In some areas, peanuts and melon seeds are also regarded as common food at weddings. However, some people may be allergic to peanuts and melon seeds or don't like them, so it's ok not to send peanuts and melon seeds when giving wedding candy to colleagues to avoid inconvenience or discomfort to colleagues.