The requirement for going to Heaven is clearly stated in the Bible and it has nothing to do with what we eat, or what we don't eat - with what we drink, or what we don't drink. It has nothing to do with anything we can do - it is entirely based on what God has already done, in Christ, to freely pardon unworthy sinners.
Jesus became "the Lamb of God that takes away the sin of the world" (John 1:29) but those who love to sin and to walk in the darkness have their sin remain, even if they appear to turn to the light, and despite the fact that the magnitude of Christ's sacrifice is sufficient to dispose of all sin. Those whom the Holy Spirit calls to saving faith do not resist His call because those ones are part of the "all those whom you have given me" that Jesus prayed for in John 17:3 & 12 & 20. Not one of THEM will be lost.
God's saving act came first. Providing Jesus as an atoning sacrifice was the first salvific act, entirely of God and utterly unmerited by anybody. It is the Holy Spirit who first has to convict a person of their sin so that they grasp the need to repent, believe and be obedient to the Lord - Jn 16:7-15.
The work of the Holy Spirit is unseen, mysterious, and entirely at His discretion. He brings to newness of life (John ch. 3); He gives us a new heart that begins to beat for God; He gives us a spirit of repentance, and a spirit of willingness. Then we co-operate because we want to, because we have decided freely that we want to. There is no coercion. There is no "list of things to do" (or not do) in order to be freely pardoned by God. We are pardoned first, not deserving that grace of God, then we delight to live to please God. Restrictions on diet were removed as shown in Acts ch. 10. Then we see that it was all of God, so that nobody can boast - Ephesians 2:9.