A study has prospectively evaluated consumptions of sweetened beverages, coffee and tea in relation to depression among older US adults.
Sweetened beverages, coffee and tea are commonly consumed worldwide and have important physical and mental health consequences.
Researchers have prospectively evaluated consumptions of these beverages, in relation to depression among 263,925 older US adults.
Beverage consumptions were assessed in 1995-1996, and 11,311 depression diagnoses since 2000 were self-reported in 2004-2006.
Drinking sweetened beverages was associated with higher depression risk, whereas coffee drinking was weakly related to lower risk. The odds ratio ( OR ) comparing greater than or equal to 4 cans/cups per day with none were 1.30 for soft drinks, 1.38 for fruit punches and 0.91 for coffee ( all P for trend less than 0.0001 ).
Further analysis seemed to suggest stronger associations with diet drinks than with regular. The odds ratios between extreme categories were 1.31 for diet versus 1.22 for regular soft drinks, 1.51 for diet versus 1.08 for regular fruit punches and 1.25 for diet versus 0.94 for regular iced tea.
Consistently, constituent-based analyses showed higher depression risk with Aspartame intake [ ORs between extreme quintiles: 1.36 ], and lower risk with caffeine intake [ corresponding OR 0.83 ].
In conclusion, this large prospective study suggests that frequent consumption of diet sweetened beverages may increase depression risk among older adults, whereas coffee consumption may lower the risk. ( Xagena )
Source: American Academy of Neurology ( AAN ) 65th Annual Meeting, 2013