Prophets had better things to do instead of watching plates of believers.
It could amaze you and in opposition with moslim teaching for 14 centuries, Mahomet never
forbad pork meat, suggested neither.

That would denie Mahomet got a biblical culture : "Allah gave us the Holly Bible with the true. The thora and the Evangiles".
In this verset, Mahomet asks the moslims to study the Bible for understand the Coran
in the good way.

The lecture of Evangiles teach us Jesus was against the pharisians and the sadduceans.
He reproached them to be submited to pagans (the romans) and to considarate that
the lecture of Bible was enough to get the graduation of good jewish.

Jesus was used to speak with an abstract language composed with enigmas, paraboles
and comparisons to force reflection in his partisans'brain because he thaught that practice
of religion must force to wake their spirit up.
Once he said to his partisans : "Beware of the yeast of the Pharisees and the Sadducees".
(Bible.Matthew C16v6 and Mark C8 v15). So they thought they couldn't eat bread any more.
In a literal way, yeast is fermented pasta added to new one for getting it better and for helping it to blow away during the baking.In a figurative way, what makes Human better
and blow the soul up?

Answer : knowledge or teaching.

Thus jesus asks his partisans to mistrust the pharisees and sadducees teaching
which would soild their soul and their heart.

Previously pharisiees were chocked to see him or his partisans eating with dirty hands. So he answered them :
" To people able to understand : Every things swalloded by the mouth (dust, food, )
can't be soiled, only things emited by heart (hate, lies, pride , vanity, )
and expressed by mouth is no pure". 'Bible Matthew C15v11. Mark C7v15)

Priests use this episode to teach christians that forbidden foodstuffs are not logical.
Mark adds : "Thus Jesus declare that every sorts of foods are good".
That means christians must keep in their mind that everything eadable are respectabale".
Even to eat rats, worms or bugs couldn't be ashaming.

The bases of casher foodstuffs are made by Moïse and his brother Aaron in the "Leviticus"
(chapter 11) and the deuteronomy '(chapter 14). That means in the third and the feefth
book of the Thora.
Thora or Torah = Jewish Law.

To summarize, Jesus teaches there are two kinds of foods.
1.food for the body are foodstuffs.
2.food for the soul and the heart are teaching or education.

In this case, why does Mahomet decide to take forbidden foodstuffs back?.

Answer : because he had understood the native reason.

Whish reason?

Answer : to prevent believer to get friend with pagans.

Why?

Answer : if the believer could eat anything he want ,he would be free to accept any pagan invitations.
Going into the stranger's home, he would be dived into private different points of vue,
with different targets, differents customs, different answers, Step by step, believer would get some doubts about his own religion ,and so, could leave it forever.

But why does Mahomet declared illegal only three elements instead of jewish people having
much more forbidden foodstuffs? And why espacialy those one .

" I do not find in that which has been revealed to me anything forbidden for an eater to eat except that it be what has died of itself, or blood poured forth, or flesh of pork, for that surely is unclean, other than (the name of) Allah having been invoked on it; No sin for the one acting by constraint off meaning to be rebel or contravener. Allah is merciful" (Koran C6 v145 or V146 since edition)
What sort of "yeat" Mahomet put in this verset ?

Because those three éléments are not eater. They are Bible episodes.
Amazing , isn't it ?

Deciphering ;

Died it itself : Bible contents thousands of versets. Only one of them talks about "Died of itself" as Moses talking to jewish people asks :
"Ye shall not eat of any thing that dieth of itself: thou shalt give it unto the stranger that is in thy gates, that he may eat it; or thou mayest sell it unto an alien: for thou art an holy people unto the Lord thy God."
This is why declaring illegal "Died of itself" episode Mahomet teaches :
"Don't accept anything from jewishes . They think they are unique people able to believe in God".

Blood poured : There is an allusion of this element in the New Testament ." Jesus took the cup, and gave thanks, and gave it to the disciples, saying :"Drink it all of it; For this is my blood of the new testament, which is poured for many for the remission of sins".
Declaring forbidden the "blood poured" , Mahomet teaches :
"Don't share anything with the christians".

Flesh of pork, and other than the name of Allah has been invoked :in 70 after J.C., roman empire destroyed Jerusalem.This tragedy caused the end of Bible writing. It is mentioned in the evangile of Luc (C21 v20 to v24);.
The romans , in their religion , when they won battles , praticed a ceremony invoking the name of Jupiter , and during it , a priest brook the head of pork symbolizing the overcamed enemy and it was eaten after. (Documentation in french language : "Dictionnaire de la Civilisation Romaine" by Jean-Claude Fredouille. Larousse editor. ""Dictionnaire de l'Atiquité" by Oxford University. Laffont éditor).

Declaring illegal "Flesh of pork" episode , Mahomet teaches :

"Don't melt with overcame people (jewishes and christians) et don't submit to the pagans sharing their deash or being sat in the same table".

This verset is clearly a poetry expressing :
"Eat everything you want but don''t accept anything from jewishes and don't share anything from christians. Don't melt with them and don't unclean yourself with pagans".

When the prophet shows the way , the disciple watches the finger.

"If they accuse you of falsehood , answer : Your Lord is full of mercy but from people in guilt never He will be turned away" (Koran C6 V147 or 148 since edition)

Is this letter clear enough ?

Yours ,

P.-S. : "Thus will be express the prophet words. I will talk to you using paraboles to reveal you hidden trues since the beginning of the world". 'Bible. Matthew C13 v34 et v35).