The reason for this comes down to a molecule called Casomorphine, which is a protein fragment that comes from the protein in milk- Casein. This molecule is a by-product of dairy consumption, coupled with inadequate digestion - and they have an opoid effect on the brain, OPOIDS BEING THE MOST ADDICTIVE DRUGS IN THE WORLD. Thus our body craves for them!!
It is thought that milk is rich in this opoid substance, as it calms the infant during feeding. But makes us feel bloated and BLAH.
What can you do to kill the urge? GO COLD TURKEY and invite non-dairy alternatives into your life such as nut milks or tahini and avocado in place of butter...the options are endless and much more tasty!
Dairy can be hidden in the most unlikely of places when packaged food is concerned so be sure to read the 'Allergy Information' on your food labels to avoid completely :-)