Omega-3 fatty acids are extremely important when it comes to the health of our scalp. If one is deficient in these fatty acids, it can cause dry scalp. Having a dry scalp can leave you with a terrible itchy, flaky mess on your shoulders. Dull hair can also be a problem.
To ensure you are getting a healthy dose of of omega-3 fatty acids foods like sardines and salmon are good choices. If you are vegetarian then a tablespoon of whole flax seeds in your salad or a few walnuts can also satisfy your dietary needs.