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How to read a Nutrition Facts label in 30 seconds

Serving size drives every number. Compare per-100 g when the servings are dramatically different — a 'low sugar' cereal is often just a smaller serving.

Reviewed by Dr. Maya Iyer · RD, MPH
Last reviewed 2026-02-25 · corrections log

The five numbers that matter most

Serving size · Calories · Added sugars · Sodium · Fiber. Everything else is context.

Percent Daily Value shortcut

5% or less = low, 20% or more = high — for any nutrient. That's the whole cheat sheet.

Sources
  • FDA Nutrition Facts label rules
  • USDA MyPlate