5. Sharper Memory
Several interesting studies have looked at the effect of grapes on learning and memory. One 12-week study done on 111 healthy older adults found that 250 mg of a grape supplement each day noticeably improved upon baseline scores for a cognitive test. The test measured memory, language ability, and attention.
Another study revealed that 8 ounces of grape juice per day can both boost your mood and increase your speed of memory recall. (But we will always recommend whole grapes over the juice alone because you need the fiber to prevent blood sugar spikes.) More research is ongoing to determine if grapes may help ward off Alzheimer’s disease.