If you want a better brain well into old age – get your fill of mushrooms. Researchers at the National University of Singapore found that eating two servings of mushrooms per week could cut your risk of brain decline in old age in HALF. Some scientists even refer to Ergo as a ‘longevity vitamin.’ And shiitake mushrooms have more Ergo than most other mushroom varieties. Of all the countries studied, Americans consumed the least amount of Ergo – and Italians consumed the most. …And the connection may be the Ergo Italians get from mushrooms!