Study raises doubt about benefit of low-calorie diet
In a major study, those restricting calories were more likely to report depressive symptoms (Getty Images)
A new study has found that following a low-calorie diet could increase the risk of developing symptoms of depression, particularly in men and overweight individuals.
Canadian researchers analysed data from 28,525 participants in the US National Health and Nutrition Examination Survey (NHANES), noting that nearly 8 per cent reported depressive symptoms.
The study found that depressive symptom scores were higher among those restricting calories, which contradicts previous studies that suggested low-calorie diets improve depressive symptoms.
Researchers suggest that real-life calorie-restricted diets can lead to nutritional deficiencies and physiological stress, exacerbating depressive symptoms, unlike controlled trials with balanced diets.
Professor Sumantra Ray said that the study raises questions about restrictive diets lacking nutrients beneficial for cognitive health and that further well-designed studies are needed.