Objective

Obesity is a major global public health concern. Psychological stress has recently gained attention as a significant factor influencing the onset and progression of obesity. However, studies focusing on adult Asian populations are limited. We therefore conducted a scoping review to identify research trends and further directions in the association between stress and obesity among Asian adults.
Methods
A literature search was conducted using the PubMed, Scopus, and Research Information Sharing Service (RISS) databases, targeting studies published over the last 20 years. Finally, 12 studies examining the association between stress and obesity were included in the review.
Results
Most studies employed a cross-sectional design. Obesity was assessed using indicators such as body mass index, waist circumference, and body fat percentage, while stress was measured using structured or researcher-developed questionnaires, most commonly a single-item question and the Psychosocial Well-being Index–Short Form. Most studies reported associations between higher stress levels and increased body mass index or a higher obesity risk, particularly in women. However, conflicting or null results were also reported. These differences in results could be attributable to variations in sex, study design, and stress assessment tools. The potential underlying interaction between an individual’s physiological and lifestyle factors may also contribute to such inconsistencies, but limited studies have considered such an effect.
Conclusion
Stress is an important contributing factor to the etiology of obesity among Asian adults. Further longitudinal studies considering biological and socioeconomic factors are required for better obesity prevention, treatment, and quality of life.