Answer:Salmon, or fish oil should be introduced to his diet.
Explanation:Unsaturated fats include Polyunsaturated fatty acids and mono unsaturated fatty acids.
Salmons contains Polyunsaturated fatty acids (PUFAs) which are “essential,”because the body needs them to function even though it cannot make them,
These polyunsaturated fats are important in the body for nerve function, blood clotting, brain health, and muscle strength.
According to American Heart Association (AHA) it is recommend that unsaturated fat should be included in the diet to reduce some heart related diseases.
The doctor understanding the differences in fats and choosing foods accordingly wants to help Darrel lower his LDL cholesterol levels because by lowering it, will help reduce his risk of certain health problems.