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

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.

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.

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.

Fats in the diet are the primary inhibitors of zinc absorption, and zinc supplementation universally increases iron absorption through enhanced heme synthesis.