Summary
From a previously reported 5-year screening programme of 6,956 47–49-year-old Malmö males, a series of 41 subjects with early-stage Type 2 (non-insulin-dependent) diabetes mellitus and 181 subjects with impaired glucose tolerance were selected for prospective study and to test the feasibility aspect of long-term intervention with an emphasis on life-style changes. A 5-year protocol, including an initial 6-months (randomised) pilot study, consisting of dietary treatment and/or increase of physical activity or training with annual check-ups, was completed by 90% of subjects. Body weight was reduced by 2.3–3.7% among participants, whereas values increased by 0.5–1.7% in non-intervened subjects with impaired glucose tolerance and in normal control subjects (p