What Quran and other religious book says about this....
 Muslims' abstention from pork eating is in adherence to the Quranic Law which states:
          
           " Forbidden to you for (food) are: dead meat,
            blood and the flesh of the swine and that
            which hath been invoked the name other than
            Allah. "
                           Holy Quran 5:4

Such prohibition is also found in the Bible:
          
          " The pig also because it is a splitter of the
           hoof but there is no cud. It is unclean for
           you. None of their flesh must you eat and carcass
           you must not touch. "
                                Deuteronomy 14:8 ( Bible)


    Islam ( an  Arabic word  which means submission to the  will of  the Almighty God) has laid down the 
    foundation for the best approach  in keeping good health. In the  Holy Qur'an (The  Last Testament ) 
    God exhorts the believers to select the best food and to stay away from any harmful food to maintain 
    good health:

          " Let him find out which is the best food
           ( to be had ) ... Eat of the best foods We
           have provided for you . "

                          ( Holy Qur'an 18:19;7:160 )        

   The main purpose of a True Religion  must be to build an ideal community in this world ; a religion  
   that  promotes  moral, political and economic well; social harmony and peace, as  well  as good health of its 
   believers or followers.  Health  means the physical and mental well-being  and freedom from  diseases  and pain.
   There are several passages in the Bible, articulating  that because of sin ( a transgression of the law of God) 
   God afflicted  human beings with  maladies  (Ps.103:3;Exodus 15:26  and Psalms 107:16-20).Islamic  instructions 
   and  teachings espousing  health  consciousness have  scriptural  and  scientific support 
                
             
 MEDICAL ASPECT OF THE PROHIBITION

      Abstention from eating pork is a measure  to safeguard health.Of all the domestic animals, pig   
      is the mostavaricious, eating  anything  including human excreta. It is the cradle of harmful germs 
      and parasites. Its meat is carrier of diseases to man, thus making it unfit for human consumption.

CHARACTER OF PIG

     All  types  of animals are lawful to be eaten  whether  those living on land or in the water except those 
     animals  specifically forbidden in the Holy Writings revealed by the  Almighty Creator and  the  sayings
     of the Prophet with clear  and well defined injunctions.
     Pig  belong to the forbidden animals, and not allowed  to  be eaten  by the believers. Pig eats almost 
     anything dirty and  they are very lazy animals. It is the most avaricious of all domestic  animals. Amongst 
     all animals, pig is the cradle of harmful germs. It's meat serves as  carrier of diseases to mankind. It is
     this very reason that made it unfit for human consumption consumption.

 DISEASES CAUSED BY PORK

    The following lists show germs or parasites that are  found in pork  and  some  diseases caused by them. 
    Many of these diseases  are contagious while some are proven fatal.This proves that the more  science  
    advances the more Islam is shown correct as a religion of God.

 PARASITIC DISEASES

   a)  TRICHINELLA  SPIRATIS  ( Trichina worms )
       It is the most dangerous parasite to man ( Rheumatism and muscular  pain). The infected persons shown no 
       symptoms, recoververy slowly some die, some  reduced to permanent invalids. No one is immune from this 
       disease and there is no cure.

   b)  TAENIA SOLIUM  ( Pork tape worm )
        The  worm  causes malnourishment of the person  leading to  anemia, diarrhea, extreme  depression  
        melancholia and digestive disturbances.  Cysticercosis  means that larva enter  the  blood  stream then 
        settle down in one or more of the vital organs of the  body,  for  example: brain, liver, lungs or spinal 
        cord.  They  grow  and encapsulate, inducing  pressure to the system around, resulting  in  dangerous  
        diseases  (diarrhea, digestive disorder, anemia, chronic invalidation).

   c)  ROUND WORMS
           Examples: Ascaris, which may lead  to digestive disturbances, appendicitis, obstructive jaundice.

   d)  HOOK WORMS
           Examples:Ancylostomiasis,  which may lead to anemia, oedema, heart failure or retarded 
           growth  ( mental  and  physical), tuberculosis, diarrhea and typhoid.

   e)  SCHITOSOMA JAPONICUM
                 Bleeding, anemia  and  other  syndromes.  If ova are  settled in  the  brain  or spinal  cord, 
                 paralysis and death may occur.

   f)  PARAGOMINES WESTERMAINI
           Infestation  leading  to  bleeding  of the lungs ( endenve haemoptysis)

   g)  PACIOLEPSIS BUSKI
            Digestive   disturbances    leading to persistent diarrhea; generalized oedema.

   h)  CLONORCHIS SINENSIS
          chlonorchiasis-obstructive jaundice, liver enlargement.

   i)  METASTRONGYLUS APRI
          Causes bronchitis, abscess of the lungs.

   j)  GIGANTHORINCHUS GIGAS
          Cause   anemia and digestive disorders.

   k)  BALATITIDIUM COLI
            Causes acute dysentery and general weakness.

 BACTERIAL DISEASES

      1. Tuberculosis
      2. Fusiformis necrofurus: causing foot-rot which is very 
         difficult to heal.
      3. Salmonella Cholera suis: causing cholera
      4. Paratyphoid
      5. Bruceellosis: Acute, sub acute and chronic. It may lead
         to permanent disabilities.
      6. Swine Erysipelas: causing Erypelas in man.
  
 Viral Diseases
      1. Small pox: is was a source of infection to man.
      2. Japanese B-encepphalitis: It is the source of infection
      3. Influenza, foot mouth disease, gas tro-enteritis of  the
         new born babies.

Protozoal   Diseases  :  Toxo  plasma  goundii-  It is a very dangerous diseases.
A new born baby of an infected woman may die within  few  days  or weeks after delivery. But if he  
survives  he may develop blindness or deafness.In adult chronic exhaustive  fever with enlarged liver 
and spleen may occur. Pneumonia,    or  celebro- spinal meninggitis which may lead to death or  madness. 
The patient may become blind and deaf too.

Fats  In  Pigs: 
		Pork contains more fats than  other  meats. Therefore, people  who  are  fond  of  pork are 
		more obese  than others.  Cholesterol  is higher  in their blood thus making them more  prone  to  
		asthereosclerosis  cardiovascular accidents and  sudden  death. 

Other Diseases :  
		Flesh of the pork  is hard to digest and may lead  to chronic  digestive disturbances. Pimples, 
		boils, cysts arecommon  in   pork   eaters. These are some of the  parasites  and  diseases  found   
		in  pork and/ or the skin of pigs and certainly  there  are  many  more.  There is still no means 
		of killing these parasites, in  the  tissues, neither has anyone found a method of expelling  them,  
		even   produced  any specific treatment for the diseases.


 BIBLICAL ASPECT OF THE PROHIBITION

 Old Testament

     The Jews and the different christian sects and denominations believe  in the Old Testament. Adherents   
     of other religions alleged that the  prohibition  was already superseded by the New Testament.This  cogent 
     argumentation is inconclusive. No one  can specifically  point  out  that Jesus  Christ  (PBUH)  lifted  
     the prohibition. On the contrary, he upheld it  he declared:


          " Think not that I have come to abolish the law
           and  the prophets: I have come not to abolish
           them but to fulfill them."  (Matthew 5:17 RSV)

     Jesus Christ (PBUH) was obviously referring to the  existing 
Law of his time , the Mosaic Law !- in which the Law  prohibiting 
pig as article of food is mentioned. ( Leviticus 11:7-11)

        " As for any beast that is a splitter of the hoof
          but is not a former of the cleft and not a chewer
          of the cud, they are unclean for you. Everyone
          touching them will be unclean. "
                                    Leviticus 11:26
 

      In addition, the book of Prophet Isaiah said:

          " Who sit in tombs, and spend the night in secret
           places  who  eats  swine's  flesh  and broth of  
           abominable things is in their vessels;... These
           are a smoke  in  my  nostrils,a fire that burns
           all the day. "  ( Isaiah 65:4,5b  RSV)


 The New Testament
        Despite the Biblical injunction prohibiting pork as food, still  people  of other religious 
        persuations insist  on  finding ways  and  reasons  to justify their  consumption  of  prohibited 
        animals  arguing  that  said  Biblical  prohibition  was  already superseded  in  the New Testament 
        when in  certainly, no  one  can specifically point out that Jesus Christ (PBUH) indeed lifted the 
        prohibition. On the contrary, Jesus (PBUH) declared:

          " Think not that I have come to abolish the law
            and the prophets. I have come not to abolish but
            to fulfill them. " ( Matthew 5:17 )

      The  fact is, we will find in Mark 5:1-20 that Jesus  (PBUH) even  permitted the foul spirits 
     (evil spirits) possessing a  man to  enter  into  the herb of swine. Since the  flesh  of  pig  is unlawful
      for  the  Jews, to  eat  and  since  it  is   consideredunclean, (Leviticus 11:7-8) consequently, the Jews 
      are not to  keep or  raise  them. This Biblical account states that  Jesus  (PBUH) punished  the  owners  
      of  the  swine;destroyed  their   unlawful livelihood and at the same time showed that pig is the habitat 
      of unclean spirits.
      The  only provision in the New Testament alluded to  their argument   is  in  Act  10:10-16.  Without  
      reading the whole context, one  would be inclined to interpret it to mean  that  God abrogated  His  
      previous command found on  Deuteronomy  14:3-8. Analleged  apparition  of Peter on Acts 10:11-16  is  alleged
      to supersede Deuteronomy 14:3-8, however, nowhere in the Bible  is  itmentioned  that  Peter actually 
      slaughtered and ate the  unclean animals  he saw in his apparition. The correct interpretation  of this 
      apparition was shown to him in Acts 10:25-28. Acts  10:11-16 therefore, carries   an   allegorical    
      connotation,r eferringexplicitly to the Gentile nations or non-Jewish  nations.  Peter was  told  not to 
      call the Gentiles common  and  unclean because God's  mercy, blessing and forgiveness also encompasses  the  
      Non Jews and life eternal also awaits the penitent.
      In  the  Bible, Jesus(PBUH) likened to a dog and  pig  those people whom after receiving divine teaching 
      failed to profit from them and abuses them for self-serving purposes:

         " Do not give holy to dogs- they will only turn and
           attack you. Do not throw your pearls in front  of
           pigs-they will only trample them underfoot. "
                             ( Matthew 7:6 NEB) 


 The New Heavens And The New Earth

      The  book  of   Isaiah   66:1-24, is an  oracle  of  the  new heavens  and  the  new earth  prepared  for the 
      believers. Within  the context, God condemns  people's practices such as eating   the flesh of  pigs, reptiles, 
      and rats.

             " Those who sanctify and purify themselves
              to go into the gardens, following one in
              the midst, eating  swine's flesh and the 
              abomination  and  mice, shall come to an 
              end together says the LORD. "
                                 (Isaiah 67:17 RSV)

      Therefore, the  prohibition    on  the  eating  of   unclean animals  was  not  abrogated  during the New 
      Testament times.God will  still  punish the transgressors in the fire that will never quench. This will 
      occur during the new heavens and the new earth.


 MUSLIMS FOLLOW THE DIVINE LAW

 Last Testament's Verdict On Prohibition Of Pork

     Islam means" submission to  the  will  and command of God "  and a person who embraced this religion 
     is called " Muslim " which means " one who accepts and submits himself to the will of God.A  Muslim is obliged  
     to  be clean both spiritually, mentallyand  physically. Abstention from eating flesh of swine is one of the 
     obligation  a  Muslim  must  observe to attain purity of the soul and of the human nature.  The  believers in 
     Islam, sincerely believe  in  the  Holy  Qur'an  as  the  Word of God, revealed toProphet  Muhammad  (PBUH) 
     which says:

         " Allah has forbidden you only what dies of itself
          and blood and the flesh of  swine  and that over 
          which any other name than that of Allah has been
          invoked;  but  whoever  is  driven  to (it), not 
          desiring  nor  exceeding the  limit, then surely
          Allah is Forgiving, Merciful. "  ( 16:115 )

     We should bear in our mind that the abstention from  eating pork  by  the  Muslims is based on hygienic 
     grounds and  of the cultivation  of purity of character. Pork is not poisonous as  to kill  people right on  
     the spot but latent. It  will  destroys   slowly.  It is certainly not as nourishing as any other meat  and 
     it causes prolonged  sufferings. Pondering on the  wisdom of this saying:   "Health is wealth "  will lead 
     you to better living  and prosperity. The last Prophet Muhammad (SAW) said: 

             " There are two blessing which many people lose:
              health and the free time for doing good ...The
              stronger believer (in health) is more  blessed
              and  more  beloved  to  Allah  than  the  weak 
              believer. "

Conclusion

     From   what  we  have  read  from  the  Scriptures  of   the christians, scientific findings, Last 
     Testaments (The Holy Qur'an)and  the saying of the Last Prophet Muhammad (SAW)  about  health and the flesh 
     of the swine, we now come now to the conclusion thateating of swine flesh or  PORK IS SIN AND SICKNESS.  
     Therefore, wemust protect ourselves for it is a fact that health is a   trust and best  blessing bestowed 
     upon us by Allah.