Evaluation of Dietary Patterns and All-Cause Mortality - A Systematic Review

This systematic review was conducted by the 2020 Dietary Guidelines Advisory Committee to evaluate the strengths of evidence on diet and health, and inform the dietary guidelines for Americans on possible associations with all-cause mortality

Quick takes:

  • Current focus shifted from interest in single nutrient consumption to dietary patterns for overall health
  • Dietary patterns reflect quantities, proportions, variety and combinations of foods as well as the frequency of habitual consumption
  • Nutrient dense dietary patterns, high in vegetables, fruits, legumes, nuts, whole grains, unsaturated vegetable oils, lean meat, poultry and fish was associated with low cause mortality in adults and older adults
  • Dietary patterns low in high-fat dairy, red and processed meat, refined carbs and sweets and moderate in alcohol consumption were considered healthy
  • Following a healthy dietary pattern at any life stage supports health in subsequent stages

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