If you do not eat meat, cashews are a good substitute. Cashews have lots of protein and minerals, like iron and zinc. They also have the mineral magnesium, which may help to improve memory.

如果你不吃肉，那么腰果是很好的替代品。腰果含有丰富的蛋白质和铁、锌等矿物质，而且含有帮助改善记忆的矿物镁。