Diabetes UK is to replace its member-elected board with a skills-based one chosen by an electoral college as part of major governance changes.
The charity is to ditch the system of direct election of trustees by its 185,000 members since it did not produce a wide enough spread of professional expertise and there was low voter turnout because members did not know enough about the candidates.
Under the new system, agreed at the charity's AGM last month, the previous 30-strong board will be replaced by a slimmed down version comprising just 12 trustees.
At least eight members will be chosen by a new advisory council consisting of 120 member representatives, voluntary groups and health care professionals.
Up to four will be chosen for their skills in areas such as accountancy.
Chief executive Paul Streets said: "With 15 committees and 30 trustees, the old Diabetes UK structure was too cumbersome to work efficiently.