Final answer:
The nursing action that will be included in the plan of care for a patient with stomach cancer and recent unintended weight loss is offering supplemental feedings between meals.
Step-by-step explanation:
The nursing action that will be included in the plan of care for a patient with stomach cancer and recent unintended weight loss is Offer supplemental feedings between meals. Unintended weight loss is a common symptom of stomach cancer, and offering supplemental feedings can help provide additional nutrients and calories to the patient. This can be done through snacks or nutritional supplements like shakes or bars, which can be taken between meals to help increase calorie intake.
Referencing a reliable source on stomach cancer and nutrition in cancer patients can provide more detailed information on the importance of nutritional support in cancer care.