Nurses and patients were found to perceive the importance of barriers differently: nurses reported higher scores on patient-related communication barriers, whereas patients reported higher scores on the nurse-related barriers.
The U.S. Department of Agriculture reports that cheese contains one of the highest natural concentrations of tyrosine. Grated Parmesan cheese has the most, with 1 cup containing 2.3 grams of the amino acid. Swiss cheese has 2.2 grams per cup, provolone contains 2 grams and mozzarella has 1.6 grams in each cup. A single serving of cheese is equivalent to 1 1/2 ounces of hard cheese or 1/3 cup of shredded cheese. To limit your fat, saturated fat and cholesterol intake, eat cheese in moderation and choose reduced-fat brands. Dry-roasted, unsalted peanuts contain 1.4 grams of tyrosine in each cup.
You may want to consider eating more meats, nuts, poultry, and fatty fish (for omega-3s). Keep in mind that eating the optimal amount of healthy protein such as: whey isolate, pasteurized eggs, seaweed, grass-fed beef, and fatty fish has potential to increase L-Tyrosine, and thus dopamine.