Objective: Anxiety and depressive symptoms are common among cancer patients and have been shown to adversely affect their health-related quality of life (HRQoL). Dark chocolate is popular for its beneficial effects on mood regulations. This study aimed to assess the effects of dark chocolate consumption on anxiety and depressive symptoms and the HRQoL status
among cancer patients. Methods: A sample of 133 cancer patients was recruited from 3 public hospitals in the East Coast Peninsular of Malaysia. The anxiety and depressive symptoms was assessed by the Malay Hospital Anxiety and Depression Scale (HADS) while HRQoL was measured via the Malay McGill Quality of Life questionnaire (MMQoL). Patients were randomly assigned to Study Group (SG) and Control Group (CG) whereby dark chocolate (50g) was administered to SG while CG consumed mineral water for 3 consecutive days. Results: Specifically, the anxiety and depressive symptoms was significantly reduced after dark chocolate consumption. The HRQoL score was also significantly increased in SG at post-intervention. Conclusion: These findings indicated that a 3-day dark chocolate consumption may reduce anxiety, depressive symptoms and thus also improved the HRQoL status in hospitalised cancer patients.