Ever wonder why cheese is so addictive? Even those going on a primarily plant-based diet tend to continue craving and eating cheese. Did you know that cheese has trace amounts of morphine? Really. Cow and human milk have trace amounts of this opiate drug to ensure that babies will bond to their mothers and the vital milk they need to grow. Here are a few informative articles about dairy and cheese. Addicted to Cheese? Here's Why " In 1981, Eli Hazum and his colleagues at Wellcome Research Laboratories reported traces of the chemical morphine, a highly addictive opiate. It turns out that morphine is found in cow milk and human, purportedly to ensure offspring will bond very strongly with their mothers and get all the nutrients they need to grow. Researchers also discovered the protein casein, which breaks into casomorphins when it is digested and also produces opiate effects. In cheese, casein is concentrated, and so is the level of casomorphins, so the pleasurable effect is ...