Animal fat prohibited in Jewish dietary laws

Leviticus 7:22 Yahweh spoke to Moses, saying, 23 “Speak to the children of Israel, saying, ‘You shall eat no fat, of bull, or sheep, or goat. 24 The fat of that which dies of itself, and the fat of that which is torn of animals, may be used for any other service, but you shall in no way eat of it. 25 For whoever eats the fat of the animal, of which men offer an offering made by fire to Yahweh, even the soul who eats it shall be cut off from his people. 26 You shall not eat any blood, whether it is of bird or of animal, in any of your dwellings. 27 Whoever it is who eats any blood, that soul shall be cut off from his people.’” (World English Bible, public domain)

The Old Testament has many dietary regulations, some still kept by some Jews (and some Christians). See the Wikipedia article on kosher foods.

The text quoted above prohibits the consumption of fat from types of animals which could be offered as a sacrifice. Since the Jews were not allowed to eat any part of most kinds of animals except those listed, they would not have had much fat in their diet. However, an article in the Jewish Encyclopedia says that "The fat of birds or of permitted wild animals is not forbidden."

In my musing on this subject, I note a few things:

1) Fat formed an important part of the sacrifices. Perhaps that's the main, or the only, reason why the prohibition on eating it. It is also possible that the prohibition was so the Israelites wouldn't get too much cholesterol, or be more likely to be overweight.
2) This had to have been symbolic, rather than absolute. Meat usually has fat blended in with the muscle, so that it would have been impossible to remove all the fat from, say, the leg meat of a cow. We can buy hamburger which is 96% lean, but the Jews couldn't have eaten meat that was 100% lean.
Note, also, that the King James Version uses the phrase "fatted calf" to describe an animal to be killed and eaten as part of a celebration, as in the story of the Prodigal Son in Luke 15, or in the parable of the wedding feast in Matthew 22.
3) In Acts 15:20, the Jerusalem Council asked Gentile Christians not to eat blood, but there was nothing said about fat. Why? (A search for "fat" turns up over 100 instances in the Old Testament, mostly about dietary laws or sacrifices, but no occurrence at all in the New Testament.)
I would guess, and it's only a guess, that the reason has to do with the symbolism of blood sacrifice. It was Christ's blood that paid for our sin, not his "meat."

Any thoughts? Thanks for reading.