For a patient with type one diabetes mellitus receiving enteral nutrition, the most appropriate nutritional solution among the given options is Glucerna.
Glucerna is specifically formulated for individuals with diabetes as it contains a blend of carbohydrates designed to minimize postprandial blood sugar spikes. It has a lower glycemic index compared to the other options, making it more suitable for diabetic patients who require careful monitoring and management of their blood glucose levels.
In contrast, Jevity and Ensure are general nutritional formulas that may contain higher levels of carbohydrates which could adversely affect blood sugar control in a diabetic patient. Polycoses, being a source of carbohydrates, is not a complete nutritional solution and is not designed for enteral feeding alone.
Therefore, Glucerna is the best choice for providing adequate nutrition while helping to manage blood glucose levels effectively in a patient with type one diabetes mellitus during the enteral feeding period.