Taking a look at what the Bible says for Christians regarding what they may eat, let's look at what Jesus himself said:
Mar 7:18 And he said to them, "Then are you also without understanding? Do you not see that whatever goes into a person from outside cannot defile him,
Mar 7:19 since it enters not his heart but his stomach, and is expelled?" (Thus he declared all foods clean.) (ESV).
This is reaffirmed in a vision Peter had:
Act 10:9 The next day, as they were on their journey and approaching the city, Peter went up on the housetop about the sixth hour to pray.
Act 10:10 And he became hungry and wanted something to eat, but while they were preparing it, he fell into a trance
Act 10:11 and saw the heavens opened and something like a great sheet descending, being let down by its four corners upon the earth.
Act 10:12 In it were all kinds of animals and reptiles and birds of the air.
Act 10:13 And there came a voice to him: "Rise, Peter; kill and eat."
Act 10:14 But Peter said, "By no means, Lord; for I have never eaten anything that is common or unclean."
Act 10:15 And the voice came to him again a second time, "What God has made clean, do not call common."
Act 10:16 This happened three times, and the thing was taken up at once to heaven. (ESV)
And again reaffirmed by Paul:
Rom 14:14 I know and am persuaded in the Lord Jesus that nothing is unclean in itself, but it is unclean for anyone who thinks it unclean.
Rom 14:15 For if your brother is grieved by what you eat, you are no longer walking in love. By what you eat, do not destroy the one for whom Christ died.
Rom 14:16 So do not let what you regard as good be spoken of as evil.
Rom 14:17 For the kingdom of God is not a matter of eating and drinking but of righteousness and peace and joy in the Holy Spirit.
Rom 14:18 Whoever thus serves Christ is acceptable to God and approved by men.
Rom 14:19 So then let us pursue what makes for peace and for mutual upbuilding.
Rom 14:20 Do not, for the sake of food, destroy the work of God. Everything is indeed clean, but it is wrong for anyone to make another stumble by what he eats.
Rom 14:21 It is good not to eat meat or drink wine or do anything that causes your brother to stumble.
Rom 14:22 The faith that you have, keep between yourself and God. Blessed is the one who has no reason to pass judgment on himself for what he approves.
Rom 14:23 But whoever has doubts is condemned if he eats, because the eating is not from faith. For whatever does not proceed from faith is sin. (ESV)
Col 2:16 Therefore let no one pass judgment on you in questions of food and drink, or with regard to a festival or a new moon or a Sabbath.
Col 2:17 These are a shadow of the things to come, but the substance belongs to Christ. (ESV)
This very clearly shows that we are not bound by any of the OT dietary restrictions; no one is. But of course, with all that said, it doesn't mean that we shouldn't make healthy, responsible dietary choices given all the garbage that is available today, nor should we just eat however much we want. In no way does all that free us from the responsibility of taking care of our health but I also don't think it means we shouldn't enjoy certain things now and again.
Mar 7:18 And he said to them, "Then are you also without understanding? Do you not see that whatever goes into a person from outside cannot defile him,
Mar 7:19 since it enters not his heart but his stomach, and is expelled?" (Thus he declared all foods clean.) (ESV).
This is reaffirmed in a vision Peter had:
Act 10:9 The next day, as they were on their journey and approaching the city, Peter went up on the housetop about the sixth hour to pray.
Act 10:10 And he became hungry and wanted something to eat, but while they were preparing it, he fell into a trance
Act 10:11 and saw the heavens opened and something like a great sheet descending, being let down by its four corners upon the earth.
Act 10:12 In it were all kinds of animals and reptiles and birds of the air.
Act 10:13 And there came a voice to him: "Rise, Peter; kill and eat."
Act 10:14 But Peter said, "By no means, Lord; for I have never eaten anything that is common or unclean."
Act 10:15 And the voice came to him again a second time, "What God has made clean, do not call common."
Act 10:16 This happened three times, and the thing was taken up at once to heaven. (ESV)
And again reaffirmed by Paul:
Rom 14:14 I know and am persuaded in the Lord Jesus that nothing is unclean in itself, but it is unclean for anyone who thinks it unclean.
Rom 14:15 For if your brother is grieved by what you eat, you are no longer walking in love. By what you eat, do not destroy the one for whom Christ died.
Rom 14:16 So do not let what you regard as good be spoken of as evil.
Rom 14:17 For the kingdom of God is not a matter of eating and drinking but of righteousness and peace and joy in the Holy Spirit.
Rom 14:18 Whoever thus serves Christ is acceptable to God and approved by men.
Rom 14:19 So then let us pursue what makes for peace and for mutual upbuilding.
Rom 14:20 Do not, for the sake of food, destroy the work of God. Everything is indeed clean, but it is wrong for anyone to make another stumble by what he eats.
Rom 14:21 It is good not to eat meat or drink wine or do anything that causes your brother to stumble.
Rom 14:22 The faith that you have, keep between yourself and God. Blessed is the one who has no reason to pass judgment on himself for what he approves.
Rom 14:23 But whoever has doubts is condemned if he eats, because the eating is not from faith. For whatever does not proceed from faith is sin. (ESV)
Col 2:16 Therefore let no one pass judgment on you in questions of food and drink, or with regard to a festival or a new moon or a Sabbath.
Col 2:17 These are a shadow of the things to come, but the substance belongs to Christ. (ESV)
This very clearly shows that we are not bound by any of the OT dietary restrictions; no one is. But of course, with all that said, it doesn't mean that we shouldn't make healthy, responsible dietary choices given all the garbage that is available today, nor should we just eat however much we want. In no way does all that free us from the responsibility of taking care of our health but I also don't think it means we shouldn't enjoy certain things now and again.