NANP Board Practice Exam

What are natural ways to prevent lipid peroxidation?

1. Addition of vitamin D

2. Addition of vitamin E, beta carotene, or extracts from antioxidant herbs

3. Decreasing dietary omega fatty acids

4. Increasing light and oxygen exposure

The correct answer is: Addition of vitamin E, beta carotene, or extracts from antioxidant herbs

The correct choice focuses on the role of antioxidants in preventing lipid peroxidation, a process that can lead to cellular damage and contribute to various health issues. Vitamin E, for example, is a well-known lipid-soluble antioxidant that specifically protects cell membranes from oxidative damage. Beta carotene, another antioxidant, contributes to the protection of lipids by neutralizing free radicals. Additionally, extracts from various antioxidant-rich herbs can further enhance the body’s defense against oxidative stress. In contrast, options like decreasing dietary omega fatty acids may not provide a beneficial effect in lipid peroxidation prevention, as omega fatty acids, particularly omega-3s, have anti-inflammatory properties and are important for maintaining cell membrane integrity. Increasing light and oxygen exposure can actually accelerate oxidative processes rather than prevent them. The addition of vitamin D, while essential for various bodily functions, does not directly impact lipid peroxidation in the same way that antioxidant compounds do. Thus, incorporating antioxidant-rich substances is a more effective strategy for mitigating the risks associated with lipid peroxidation.