text: why don't seventh day adventists eat pork or shellfish?   read leviticus 11  if you don't have a bible at home use this website   http://www.biblegateway.com/passage/?search=leviticus%2011%20;&version=31;  god told the israelites what animals he approved of them eating. science is just now learning the whys and wherefores. most of the creatures listed as unclean have high levels of colesterol which leads to heart disease. many have diseases that are only just now being controlled by vaccines and medicines. these dietary laws were given to prevent the people from eating food that might harm them. and it goes back long before the book of leviticus. when the animals were going into the ark they were already listed as clean or unclean by god so this is not just something to be discarded because jesus came to earth. see  genesis 7, a lot of people miss this point. there were seven of the clean animals and only two of unclean. so, god classified the animals long before moses was born.  these are not superfluous words such as were written telling people they could only walk so far on the sabbath, and they shouldn't light a fire. those rules (i don't call them laws because they were written by sadducees) were not from god but from men who foolishly thought they could work their way into heaven.  there is a big difference between manmade law and gods laws.  many people use the experience of peters' vision to say it's okay to eat everything. but peter explained that vision as meaning all people were clean and it was acceptable to socialise with them. he never  interpreted that vision as actually cleansing all animals.  what's more, people who say that vision means all animals are clean are two faced in that they don't normally eat oppossum, skunk, snakes, rats, mice.  so, you see even they still make some of their own distinction between clean and unclean.  rest my case.........