Final answer:
Vitamin C is the nutrient that the nurse should suggest the client include in her diet to enhance the effect of the iron supplement.
Step-by-step explanation:
The nurse should suggest that the pregnant client include Vitamin C in her diet to potentiate the effect of the iron supplement.
Vitamin C enhances the absorption of iron in the body. When taken together with an iron supplement, Vitamin C helps increase the amount of iron that is absorbed from the digestive system into the bloodstream.
Some food sources of Vitamin C include citrus fruits (like oranges and grapefruits), strawberries, kiwi, bell peppers, broccoli, and tomatoes.