Charles Ellicott Commentary Leviticus 7:27

"Whosoever it be that eateth any blood, that soul shall be cut off from his people." — Leviticus 7:27 (ASV)

That soul shall be cut off. —According to the law that prevailed during the second Temple, the punishment of excision was only inflicted for eating the life-blood , that is, the blood in which the life of the animal resides, and the loss of which causes death. For eating the blood found in the limbs, or in any internal portion of the body, a sin offering had to be brought, and the offender was beaten with stripes.