The mineral having action like vitamin E ?
**Core Concept**
Vitamin E is a fat-soluble antioxidant that protects cells from oxidative damage by scavenging free radicals. It also plays a crucial role in maintaining the integrity of cell membranes.
**Why the Correct Answer is Right**
The mineral that has an action similar to vitamin E is Selenium. Selenium acts as an antioxidant by incorporating into selenoproteins, which help to reduce oxidative stress and protect cells from damage. Selenium also plays a vital role in the proper functioning of the immune system and thyroid function. The antioxidant properties of selenium are mediated through its incorporation into glutathione peroxidase, an enzyme that helps to neutralize free radicals.
**Why Each Wrong Option is Incorrect**
**Option A:** Zinc is an essential mineral involved in various physiological processes, including immune function and wound healing. However, it does not have antioxidant properties similar to vitamin E.
**Option B:** Iron is a crucial mineral for oxygen transport and energy production. It does not have antioxidant properties or a mechanism of action similar to vitamin E.
**Option C:** Manganese is an essential mineral involved in enzyme function and antioxidant defenses. However, it does not have a mechanism of action similar to vitamin E, which is primarily mediated through its antioxidant properties.
**Clinical Pearl / High-Yield Fact**
Selenium deficiency can lead to a condition known as Keshan disease, characterized by cardiomyopathy and muscle weakness.
**Correct Answer:** D. Selenium.