The answer is False. Everyone of the blood products shown on the diagram may be used by a Jehovah's Witness as a matter of personal choice and without any sanction from the local congregation. The June 15, 2000 Watchtower made subtle but important changes to official policy. These relate primarily to the way blood products are classified. As a result, Jehovah's Witnesses now have the right to make a personal decision regarding the use of all blood fractions including the "mother of all fractions" hemoglobin. The single largest blood component after water. You can learn more by reading the article, "Watchtower Blood Policy Changes Again."