Changes in height, weight, and body mass index over time in Norway

Body weight increased among younger participants, with obesity prevalence rising from 6.7% to 15.5% in men and from 11.0% to 21.0% in women over 11 years.

• Individuals under 50 years showed significant weight gains, averaging 7.9 kg for men aged 20-29 and 7.3 kg for women aged 20-29.
• Participants aged 70 years or older experienced an average weight loss.
• The prevalence of overweight and obesity increased notably, especially in younger age groups.
• Height reduction contributed to the increase in obesity rates, particularly among the oldest participants.
• Overall, there was approximately a 20% increase in the proportion of overweight and obese individuals from the first to the second survey.

Simplified