Adam Clarke on Leviticus 17:15

That which died of itself, or that which was torn - Because, in both cases, the blood was retained in the body; hence the council at Jerusalem forbade things strangled as well as blood, because in such beasts the blood was coagulated in the veins and arteries. See Act 15:28-29. Every thing considered, surely there is as little propriety in eating of blood as there is necessity to do it. They who will do otherwise must bear their iniquity. If blood eating be no offense, then they have no sin to answer for. The principal subjects of this chapter have been already so amply handled in the notes, that there is no need to add any thing by way of reflection or improvement.