This is not your typical food, but for some individuals, mussels may be considered a delicacy. Known for their shelled appearance, mussels go well with rich sauces and fancy wine. In addition to being a great delicacy, mussels can help to boost your brain health by increasing overall mood levels. Improving mood can help to improve clarity and help to keep your brain healthy. In addition to being a mood elevator, mussels are loaded with vitamin B 12, zinc, iodine, and selenium, all of which are needed for overall brain functioning. Consider enjoying mussels when you can and if you are allergic to any shellfish varieties, consider skipping on this.