What are these qualities?
Opioid peptides can give effects of euphoria, relaxation, comfortability and sleepiness. Withdrawal can also be felt when the brain no longer gets this stimulation. These are things people generally feel after consuming a large amount of dairy products, specifically ones like pizza. But happiness and euphoria after eating pizza is not entirely due to opioid peptides, carbohydrates also act as a factor leading to, at times, similar effects. Opioid qualities such as those listed above are found in significant quantities within that of mammal’s milk which helps to make infants feel safe and secure. It should be noted that these effects clearly pale in comparison to the effects of actual opioids and opiates such as heroin, codeine, oxycontin, or fentanyl.
Are they dangerous?
Food that has opioid peptides within them should not be considered as dangerous. These are significantly different from hard drugs simply because they do not stimulate the brain all that much. The most dangerous thing about food with high quantities of opioid peptides is that they are moorish and therefore can lead to addiction.