Despite these statements, restricting meat consumption was not made an explicit requirement for worthiness in the LDS Church as the standards for obedience to the Word of Wisdom were made increasingly central to LDS Church doctrine and practice in the early 20th century. The increased emphasis on the Word of Wisdom took place during the presidency of Heber J. Grant, a long-time enthusiastic promoter of the Word of Wisdom. Although Grant did not make restricting meat consumption an explicit part of the standard, he continued to interpret it as part of the counsel in the Word of Wisdom. In the 1937 General Conference, at 80 years old, Grant said he worked long hours "without fatigue and without feeling the least injury". He attributed his excellent health, in part, to eating very little meat.