Fish Consumption, sleep, Daily Functioning, and Heart Rate Variability

This study explored the effects of fatty fish consumption on sleep, daily functioning, and biomarkers such as vitamin D and heart rate variability (HRV) in a group of forensic patients. Participants consuming Atlantic salmon three times per week experienced improved daily functioning and stable sleep latency compared to a control group. Improved vitamin D levels and HRV were observed in the fish group, suggesting a potential link to better sleep efficiency and cognitive functioning. While promising, seasonal and dietary variations were influential, indicating the need for further research.

Incorporating fatty fish like salmon into your diet, especially during winter, may improve sleep and daily functioning by enhancing vitamin D and omega-3 levels. Combining this dietary habit with regular outdoor activity for natural light exposure could maximize benefits for brain health and sleep quality. Evidence is encouraging but requires validation across broader populations.