Nutritional Genomics: Implications for Age-Related Macular Degeneration

Area of Science:

• Ophthalmology
• Nutritional Genomics
• Genetics

Background:

• Age-related macular degeneration (AMD) is a major cause of vision loss in older adults.
• AMD's development is influenced by genetics, environment, and diet.
• Nutritional genomics explores gene-nutrient interactions for AMD prevention and management.

Purpose of the Study:

• To review the interplay between genetic predispositions and dietary interventions in AMD.
• To explore personalized nutritional strategies for optimizing AMD management.
• To synthesize findings on nutritional genomics for AMD.

Main Methods:

• Narrative review of randomized controlled trials and recent advances in nutritional genomics.
• Examination of gene-nutrient interactions in AMD.
• Synthesis of evidence on personalized nutrition for AMD.

Main Results:

• AREDS/AREDS2 trials show supplements (vitamins C, E, zinc, copper, lutein, zeaxanthin) slow advanced AMD progression.
• Nutritional interventions tailored to genetic profiles (e.g., CFH, APOE variants) show promise.
• Personalized carotenoid intake (lutein, zeaxanthin) based on genetic susceptibility is an emerging precision nutrition approach.

Conclusions:

• Personalized nutritional interventions hold potential for improving AMD patient outcomes.
• Further research is needed on long-term effects, additional genetic variants, and clinical implementation of nutrigenomics.
• Advancing nutritional genomics can optimize AMD management and advance precision nutrition in ophthalmology.