Vegetarian diets often include specific dietary restrictions such as the exclusion of meat, poultry, and fish. Many vegetarians focus on plant-based sources for protein, such as legumes, nuts, and whole grains. Some stricter forms, like vegans, eliminate all animal products, including dairy and eggs. These dietary choices can lead to increased intake of fruits, vegetables, and fiber but may require careful planning to ensure sufficient intakes of essential nutrients such as vitamin B12, iron, and omega-3 fatty acids. Being aware of these restrictions helps in maintaining a balanced and healthy vegetarian lifestyle.