Which of the following interactions between nutrients is supported by the lesson content?

• A. Phytates enhance zinc absorption by chelating it and facilitating transport, while non-heme iron increases zinc bioavailability through cooperative uptake; excess zinc does not affect iron absorption.
• B. Non-heme iron competes with zinc for shared intestinal absorption pathways, phytates and high-fiber plant foods bind zinc and reduce its bioavailability, and excessive zinc intake can in turn inhibit iron absorption.
• C. Calcium supplements and vitamin D block zinc uptake by forming insoluble complexes with zinc in the stomach, while fiber has no impact on zinc absorption.
• D. Fats in the diet are the primary inhibitors of zinc absorption, and zinc supplementation universally increases iron absorption through enhanced heme synthesis.

Answer: (B)