Vitamins/minerals and genomic stability in humans

Area of Science:

• Nutritional Science
• Molecular Biology
• Genetics

Background:

• Traditional Recommended Dietary Allowances (RDAs) focus on preventing deficiency diseases.
• Emerging evidence suggests higher micronutrient levels are crucial for DNA maintenance and genomic stability.
• Dietary supplementation with micronutrients and polyphenols is increasingly common but lacks clear guidelines.

Discussion:

• Micronutrients play vital roles in DNA synthesis, repair, methylation, and managing oxidative stress.
• Reviews assess evidence for micronutrient impact on human genomic stability at realistic intake levels.
• Genotypic differences and optimal dietary ranges require further investigation.

Key Insights:

• Current RDAs may be insufficient to protect against genomic instability.
• Specific micronutrients influence DNA integrity, gene expression, and cell death pathways.
• Evidence synthesis from human and mammalian studies informs potential new RDAs.

Outlook:

• Further research is needed to establish optimal dietary ranges for maintaining genomic stability.
• Future RDAs should consider micronutrient roles beyond deficiency prevention.
• Personalized nutrition strategies may account for genotypic variations in micronutrient needs.