阅读下面材料，在空格处填入适当的内容（1个单词）或使用括号中单词的正确形式。
Many Chinese believe____(eat) pig brains will increase their intelligence and some Americans regularly eat____ (cook) eggs to keep their minds sharp. ____ doctors don't recommend eating____ raw eggs or animal brains. Then, what food is good for your brain? Scientists have found a relationship ____ diet and a healthy brain. Generally speaking, fish is ____brain food. Besides fish, you should introduce lots of dark green leafy vegetables and colorful fruits into your diet,____ most people lack the special vitamins____ these brain food provide. If you eat brain foods____(regular), they can increase brain power — help you pay attention, keep you motivated, improve your memory and ____(less) stress from studies. Then you can do much better in your test.
