Which vitamin is known for protecting cell membranes?

Vitamin E is known for its role in protecting cell membranes from oxidative damage. It acts as a powerful antioxidant, helping to neutralize free radicals, which are unstable molecules that can react with and damage various cellular components, including the lipids that make up cell membranes. This protective action is particularly important because it helps maintain the integrity and functionality of cells, thereby supporting overall health.

Furthermore, Vitamin E is fat-soluble and is incorporated into the lipid bilayer of cell membranes, reinforcing its protective effects. This vitamin is crucial for preventing lipid peroxidation, which can lead to cellular dysfunction and contribute to various diseases, including cardiovascular disease and cancer.

While other vitamins listed in the question serve important functions in the body, they do not have the same significant role in protecting cell membranes as Vitamin E does.