I know that if I want my muscles to grow stronger, I should eat lot of protein containing food, apart from only training hard. And taking protein precisely after the training and before sleeping is probably most effective. Does the way I eat also have an effect on my ability to learn new things? After all, learning is about training the brain, and changing it physically. I see that my brains don't get bigger, like my muscles do, as result of training, but that alone is probably not enough to conclude this idea false. I know that just thinking about some things (and doing related exercises) is the key to start understanding them (and not eating!), similarly as training muscles is key to make them stronger, but since the food does have effect on the effectiveness of the muscle training, I might guess that something similar happens also with learning.