A recent study has revealed a concerning link between soft drink consumption and mental health, suggesting that these sugary beverages could have a deeper impact than previously thought. Researchers found that regularly drinking soft drinks may disrupt gut bacteria, potentially increasing the risk of depression.
Published on a medical research platform, the study examined how soft drink intake alters the gut microbiota — the community of microorganisms essential for regulating mood and brain function.
Excessive sugar was found to promote the growth of certain harmful bacteria while reducing beneficial ones, creating an imbalance that can lead to inflammation in the body. This inflammation, experts say, may negatively affect emotional stability and mental well-being.
The research analyzed data from 405 individuals diagnosed with depression and 527 healthy participants. Findings showed that those who consumed soft drinks daily had an 8% higher likelihood of developing depression compared to non-consumers. The impact was notably more pronounced among women, whose risk increased by up to 16%.
Even after adjusting for weight, height, and other lifestyle factors, the correlation between soft drink consumption and depression remained strong.
However, the study stopped short of confirming direct causation, noting that individuals already experiencing depressive symptoms might be more likely to drink soft drinks frequently as a form of self-comfort.
Researchers called for further large-scale studies to determine whether reducing soft drink intake can actively lower the risk of depression.
Health experts recommend limiting the intake of sugary drinks, emphasizing that small lifestyle changes — such as replacing sodas with water, fresh juices, or herbal teas — can benefit both physical and mental health. Maintaining a balanced diet, they say, may help promote better gut health, reduce inflammation, and support emotional well-being in the long run.
