Borobudur revisited: soy consumption may be associated with better recall in younger, but not in older, rural Indonesian elderly.

Previous reports have suggested that high frequent tofu consumption is associated with worse cognitive function in East Asian elderly. Some studies also found an increased risk of dementia with high tofu consumption in those older than 65years of age. Tofu and other soy products, such as tempeh, contain high levels of plant estrogens or isoflavones.