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Dietary guidelines for Americans: Evolution over time

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Updated: January 13, 2022

How have the dietary guidelines for Americans changed over time?

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  • Healthy Eating
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Get email updates
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Log In
  • Healthy Living
    • What to Eat
      • The Basics
      • Shop Smart
      • Restaurant Food
      • Recipes
    • Staying Healthy
      • Preventing Disease
      • Exercise
      • Fact vs. Fiction
      • The Planet & Your Health
      • Additives & Contaminants
      • Avoid Food Poisoning
      • Vitamins & Supplements
      • Weight & Health
  • Advocacy
    • Campaigns
      • Pathogens and food safety: Farm to fork
      • Predatory food marketing
      • The final MAHA Strategy Report: Guidance for advocates
      • Food chemical safety & transparency
      • Dietary Guidelines
      • Front-of-package nutrition labeling
      • Farm Bill
      • The Straight Shot: Federal vaccine updates
    • Our Approach
      • Advocacy resources
      • CSPI Action Fund
      • Grassroots activism
      • Litigation
  • Our Issues
    • Nutrition
      • Dietary Guidelines for Americans
      • Food labeling
      • Food marketing to kids
      • Food service guidelines
      • Healthy food banking
      • Healthy retail
      • Healthy SNAP
      • Restaurant kids' meals
      • School foods
    • Food safety
      • Allergens
      • Dietary supplements
      • Food additives
      • Food dyes
      • Foodborne illness
    • Health
      • New food technologies
      • Food and environment
      • Laboratory-developed tests (LDTs)
  • Get Involved
    • Take Action
    • Donate Now
    • Resource Hub
    • More Ways to Give
    • Partner with Us
    • Subgrant Opportunities
  • About Us
    • Protecting Science
    • Our Victories
    • 2025-2030 Strategic Plan
    • CSPI's 2026 Impact Report
    • People
    • Media Center
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