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Study Finds Sugar Does Not Affect Mood or Boost Energy


Sugar is the generic term for sweet-tasting, soluble carbohydrates, many of which are used in food preparation. A recent study examined the association between sugar and mood and found that sugar does not improve mood and may make people more tired and less alert.





The researchers looked at data from 31 published studies that included approximately 1,300 adult participants. The studies looked at the effect of sugar on mood, including anger, alertness, depression, and fatigue. The studies also looked at whether the quantity and type of sugar consumed has an effect on mood, and if engaging in demanding mental or physical activities after sugar consumption affects mood.





The researchers found that sugar does not have a favorable effect on any aspect of mood. This held true regardless of how much sugar was consumed, and whether or not participants engaged in demanding activities after consumption. They also found that sugar consumption tended to lower alertness within 60 minutes after consumption, and increased fatigue 30 minutes after consumption.





The study was conducted by researchers from Humboldt University of Berlin, Lancaster University, and the University of Warwick. It was published online ahead of print on April 3, 2019 in the journal Neuroscience & Biobehavioral Reviews.


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