Why are DRIs described as 'evidence-based' and population-specific rather than universal single targets for every person?

Because they prioritize commercial dietary trends and are updated yearly based on industry-funded studies rather than rigorous public-health research.

Because they are legal nutritional standards applied uniformly across clinical and non-clinical populations to ensure every person meets an identical nutrient intake level regardless of life stage or health.

Because DRIs are designed only for individual clinical treatment plans and are not intended for population-level guidance or policy use, requiring clinicians to disregard them for healthy people.

Because DRIs are derived from scientific research and vary by age, sex, and physiological status, providing different reference values for distinct healthy population groups.