Apparently according to the bible Jesus gave his own flesh and blood to his friends to eat and drink, Is this believed to be true?

The fact of the matter: Yes: his flesh is the bread of life and his blood is the blood that gives us everlasting life and also heals us from are trespass and sins, so we can enter the kingdom of God The Lord Jesus Christ only.

A consideration of the context suggests that event refers to His teaching being "imbibed". This figurative language is seen with references to "I AM the bread of life", and "manna". References, like "Light of the world", "Good shepherd" are seen in the context in which they are given.

The tradition is to eat bread (flesh) and wine (blood) as a reminder of the sacrifice. Yet, Jesus didn't sacrifice, he was murdered. Remember, he asked God "why hath thou foresaken me?"

Wrong, that's not what the text says (and I know you're trolling).

Mt 26:27 Then he took a cup, and when he had given thanks, he gave it to them, saying, “Drink from it, all of you. 28 This is my blood of the covenant, which is poured out for many for the forgiveness of sins. 29 I tell you, I will not drink from this fruit of the vine from now on until that day when I drink it new with you in my Father’s kingdom.”

He called the "cup"  his blood, but then immediately afterwards referred to it as grape juice.  Obviously he was using symbolic language, in particular, a metaphor, something he did throughout his ministry.

In Jn 6:53-58, he used the same metaphor about "eating and drinking" him except in this case, instead of it having to do with remembering his death (1Cor 11:24-26), the metaphor had to do with "consuming" his words (v. 63).

Let you tell it, they ate each other!

"For as the BODY is one, and hath many members, and all the members of that one BODY, being MANY, are one BODY; 

>>>SO ALSO IS CHRIST"<<< (I Corinthians 12:12).

"For by ONE SPIRIT were we all baptized into ONE BODY..." (I Corinthians 12:13).

"But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of His" (Romans 8:9).

"Wherefore henceforth know we no man after the flesh: yea, though we have known Christ after the flesh, yet now henceforth know 

>>>WE KNOW HIM NO MORE"<<< (II Corinthians 5:16)!

"For by One SPIRIT are we all baptized into One BODY..." (I Corinthians 12:13).

KEEP UP NOW!  

>>>IF YOU CAN!<<<

"For our comely parts have no need..." (I Corinthians 12:24).

"Wherefore henceforth know we no man after the flesh: yea, though we have known Christ after the flesh, yet now henceforth know

>>>WE KNOW HIM NO MORE"<<< (II Corinthians 5:16)!

"And Jesus said unto them, I am the bread of life: he that cometh to me shall never hunger; and he that believeth on Me shall never thirst" (John 6:35). 

"Wherefore henceforth know we no man after the flesh: yea, though we have known Christ after the flesh, yet now henceforth know  

>>>WE KNOW HIM NO MORE"<<< (II Corinthians 5:16)!

“And when He had given thanks, He brake it, and said, Take, eat: this is My [SPIRITUAL] BODY, which is broken for you: this do in remembrance of Me.”

"Wherefore henceforth know we no man after the flesh: yea, though we have known Christ after the flesh, yet now henceforth know

>>>WE KNOW HIM NO MORE"<<< (II Corinthians 5:16)!

KEEP UP NOW!

>>>IF YOU CAN!<<<

THUS SAITH THE LORD:

>>>CATHOLIC DOCTRINE<<<

>>>LET MY PEOPLE GO!<<<

Jesus gave a symbol of his flesh and blood.

The bible is clear, Jesus gave them bread and fruit juice. 

When he gave them the bread, he said "this is my body".  Literally, where was his literal body at the time? He was literally there in the room with them!

When they ate the bread, a part of his literal body did not disappear and get consumed.  They were eating a symbolic figurative representation of his body!

Likewise, when they drank the juice, part of his literal blood did not get drained from his literal body!

The Eucharist came from cannibalism which was a religious ritual going back  thousands of years prior to the New Testament.

There is nothing original in Christianity.  

Not literally. Symbolically Jesus himself is basically the bread, and the wine. For he is the truth. Everything that is in the hands of Jesus, anything blessed by the Lord Jesus is truth, and his blood.