Nutritional Psychology

 Refined Grains and Cardiovascular Health: What Nutritional Psychology Research Reveals Modern food production has transformed the way people eat around the world. Industrial-scale agriculture and food processing have made refined grain products and sugary foods more accessible than ever. While these foods are convenient and affordable, research continues to raise concerns about their impact on physical and mental health. A 2021 prospective cohort study led by Swaminathan explored how refined grains, whole grains, and white rice affect cardiovascular disease (CVD) risk and mortality across different countries and populations. Understanding Refined Grains vs. Whole Grains Refined grains are processed foods that have had much of their fiber and nutrients removed. Common examples include: White bread Pastries and desserts Processed noodles and pasta Breakfast cereals Whole grains, on the other hand, retain their natural fiber and nutrients. Examples include: Oats W...

 MIND Diet and Sleep Quality: Can Brain-Healthy Foods Improve Sleep? Sleep and mental health are closely connected, and researchers continue to explore how nutrition may influence both. A 2022 study by Rostami investigated whether following the MIND diet could improve sleep quality and psychological well-being. The findings suggest that greater adherence to the MIND diet may support healthier sleep patterns, including reduced insomnia and daytime sleepiness. What Is the MIND Diet? The MIND diet, short for Mediterranean-DASH Diet Intervention for Neurodegenerative Delay, combines principles from the Mediterranean and DASH diets. It was developed to support brain health and reduce the risk of neurodegenerative decline. The diet encourages consumption of 10 “brain-healthy” food groups: Green leafy vegetables Other vegetables Nuts Berries Beans Whole grains Fish Poultry Olive oil Wine At the same time, it limits foods considered “brain-unhealthy,” including:...

  Healthier Diets are Associated with Better Mental Health in Adolescents Summary: A systematic review published in Nutrients examined how diet is linked with mental health in adolescents aged 10 to 19 years. It synthesized evidence from 19 studies, including 6 randomized controlled trials and 13 longitudinal studies, to provide a high-quality overview of existing research. Key Findings Healthier dietary patterns were consistently associated with better mental health outcomes in adolescents. Depression was the most frequently studied outcome, but research also included anxiety, stress, well-being, and broader psychological distress indicators. Across studies, adolescents with better diet quality reported fewer depressive symptoms, while poorer diet quality was linked to increased psychological distress. Whole dietary patterns such as the Mediterranean-style diet showed more consistent benefits than single-nutrient supplements. Nutritional Exposures Studied Research e...