Hunger can affect mood, but a new study from the University of Toronto shows a stronger connection between low-calorie diets and symptoms of depression. The findings were especially clear in people who were overweight.
A Decade of Data from Nearly 30,000 Participants
Researchers tracked almost 30,000 people over a period of ten years. Participants were asked to complete detailed questionnaires about their daily food intake, diet patterns, and any symptoms of depression they experienced.
Key Findings: Low Calories, Low Mood
The study revealed that people who followed strict low-calorie diets reported higher levels of depression symptoms. These symptoms included fatigue, lack of motivation, and less enjoyment in daily activities.
Published in the journal BMJ Nutrition, Prevention & Health, the study suggests that nutrient deficiencies may be behind this link. Diets lacking protein, omega-3 fatty acids, and vitamin B12 may reduce brain function and contribute to a lower mood.
Contradicting Previous Research
This research goes against earlier studies that suggested low-calorie diets improve depression. However, the University of Toronto researchers believe the difference lies in nutritional quality.
They say it’s not just about calories. A nutrient-dense, well-balanced diet is more important for mental health than simply cutting calories. Diets low in essential nutrients might worsen emotional well-being, even if they help with weight loss.
What Should You Take Away?
This study is observational, meaning it cannot prove cause and effect. Still, experts agree the findings highlight an important issue: focusing only on calories can be harmful.
Mental health may depend not just on how much you eat but also on what you eat. Experts recommend making sure meals contain enough vitamins, proteins, and healthy fats to support both physical and emotional well-being.
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