Final answer:
The best nursing intervention for hyperthyroidism with altered nutrition is to provide several small meals throughout the day to meet the patient's increased metabolic demands.
Step-by-step explanation:
For a patient diagnosed with hyperthyroidism and a nursing diagnosis of altered nutrition: less than body requirements, the best intervention would be to provide several small meals each day for the patient. Since individuals with hyperthyroidism often experience an increased metabolic rate, they may require more calories throughout the day. Frequent small meals can help meet the increased nutritional needs and manage weight loss associated with the condition.
Moreover, these patients may benefit from a diet that is high in calories, proteins, and complex carbohydrates to support their elevated metabolic needs. Dietary counseling and monitoring are crucial to ensure that the patient consumes adequate nutrients and maintains optimal energy levels without exacerbating symptoms.