When I asked the elder about blood fractions he said that they are allowed because the bible does not speak directly to fractions....well if the bible does not speak directly to fractions, upon what did they base the below statement in the Reasoning from the Scriptures book......
Animal flesh may be eaten, but not the blood
Gen. 9:3,4: "Every moving animal that is alive may serve
as food for you. As in the case of green vegetation, I do give
it all to you. Only flesh with its soul-its blood-you must
not eat."
Any animal used for food should be properly bled. One
that is strangled or that dies in a trap or that is found after
it has died is not suitable for food. (Acts 15:19,20; compare
Leviticus 17:13-16.) Similarly, any food to which whole
blood or even some blood fraction has been added should not
be eaten.