Final answer:
High dietary phytate intake, iron overload, alcohol consumption, stress, infections, inflammation, and surgery are influences that can decrease plasma zinc levels.
Step-by-step explanation:
c) High dietary phytate intake, iron overload, alcohol consumption, stress, infection, inflammation, and surgery Influences that decrease plasma zinc levels include factors such as high dietary phytate intake, which forms insoluble salts with minerals like zinc and calcium, thus inhibiting their absorption. Iron overload, as seen with decreased synthesis of ceruloplasmin in copper deficiency, can also compete with and inhibit zinc absorption. Other factors include excessive alcohol consumption, which can affect the liver and the metabolism of zinc, as well as physiological stress, infections, and inflammation, which can redistribute zinc to support immune functions. Surgery can also cause a temporary drop in plasma zinc due to increased demand for tissue repair. It's important to note that plasma zinc levels are tightly regulated, and factors such as dietary intake, stress, and illness can cause fluctuations.
Influences that decrease plasma zinc levels include factors such as high dietary phytate intake, which forms insoluble salts with minerals like zinc and calcium, thus inhibiting their absorption. Iron overload, as seen with decreased synthesis of ceruloplasmin in copper deficiency, can also compete with and inhibit zinc absorption. Other factors include excessive alcohol consumption, which can affect the liver and the metabolism of zinc, as well as physiological stress, infections, and inflammation, which can redistribute zinc to support immune functions. Surgery can also cause a temporary drop in plasma zinc due to increased demand for tissue repair. It's important to note that plasma zinc levels are tightly regulated, and factors such as dietary intake, stress, and illness can cause fluctuations.