A Daily Glass of Juice or Smoothie Linked to Lower Depression Scores in U.K. Trial

Fruit Drinks and Mood: Daily Juice Tied to Better Depression Scores

According to НВ — Техно: Could a daily glass of 100% fruit juice or smoothie help support mental health? A four-week randomized controlled trial from Newcastle University in the U.K. suggests it may, and the results have been published in the British Journal of Nutrition. The study followed 42 adults who were eating no more than two portions of fruits and vegetables per day at enrollment.

Participants were split randomly into three groups of 14. One group acted as a control and continued their normal diet. Another group got educational and financial support to reach the recommended five daily portions of produce. The third group had the same five-portion target and, on top of that, consumed one glass of juice or smoothie each day.

Both intervention groups increased their daily fiber intake by approximately 8–10 grams, while metabolic health indicators and blood sugar levels showed no negative effects. To assess mood, the researchers used the PHQ-9 depression questionnaire. The juice and smoothie group posted an adjusted average score of 2.93 on the 27-point scale, versus 5.45 in the control group. That 2.52-point gap was statistically significant.

This research underscores the importance of good nutrition for better mental health. - Dr. Oliver Shannon

Photo caption: Depression ratings in the juice-and-smoothie group were significantly lower than those in the control group. Among the study authors are Dr. Oliver Shannon and researcher Courtney Neal.

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This article provides general reference information and is not a substitute for a doctor’s advice.

These findings may be encouraging for people with depression or those at risk of developing it, and adding fruit drinks could be a simple, accessible strategy to support emotional well-being. However, this is just one piece of the larger mental-health picture, and the results reinforce the broader value of a balanced diet and healthy lifestyle. The findings add to a larger conversation about the role of food in psychological well-being, though personal circumstances always matter.

Understanding how different sugars affect our brain can shed light on the broader implications of diet on mental health. For instance, recent research highlights the varying reactions of the brain to fructose and glucose, which may further explain why certain dietary choices can influence mood and emotional well-being. Exploring these connections can provide valuable insights for those looking to improve their mental health through nutrition.