**Core Concept**
Lipid peroxidation is a process in which free radicals react with lipids containing carbon-carbon double bond(s), especially polyunsaturated fatty acids (PUFAs), leading to cell damage. This process is often used as a marker of oxidative stress.

**Why the Correct Answer is Right**
Malondialdehyde (MDA) is a product of lipid peroxidation, which is measured as a parameter to assess lipid peroxidation. MDA is formed from the breakdown of 4-hydroxynonenal (4-HNE), a major product of lipid peroxidation. Elevated levels of MDA are often associated with increased oxidative stress and cell damage. The thiobarbituric acid reactive substances (TBARS) assay is commonly used to measure MDA levels in biological samples.

**Why Each Wrong Option is Incorrect**
**Option A:** Glutathione is an antioxidant that helps to reduce oxidative stress, but it is not a parameter used to assess lipid peroxidation.
**Option B:** Hydrogen peroxide is a reactive oxygen species (ROS) that can contribute to oxidative stress, but it is not a product of lipid peroxidation.
**Option C:** Superoxide dismutase is an enzyme that helps to reduce oxidative stress by converting superoxide anions into hydrogen peroxide, but it is not a parameter used to assess lipid peroxidation.

**Clinical Pearl / High-Yield Fact**
Mnemonically, "MDA" can be remembered as "Malondialdehyde" or "Markers of Damage Accumulation". Lipid peroxidation is a key process in the pathogenesis of various diseases, including atherosclerosis, cancer, and neurodegenerative disorders.

**Correct Answer:** D.