How to Read a Food Label — Complete Guide

1. Ingredients Are Listed by Weight

The first ingredient is always the most abundant. If sugar (or one of its 50+ names) is in the top 3, the product is sugar-heavy. Watch for: sucrose, glucose syrup, dextrose, maltose, HFCS, agave nectar, rice syrup, malt extract.

2. Decode "Natural Flavors"

"Natural flavors" is the 4th most common ingredient on US food labels. It can contain up to 100+ chemical compounds. The word "natural" means derived from a plant or animal source, but the final product may be heavily processed. Under EU law, the specific flavor source must be named if it constitutes more than 95% of the flavoring.

3. Understand E-Numbers

E-numbers are the EU's coding system for approved food additives. They appear on labels in the EU, UK, Australia, and many other countries. In the US, additives are listed by their chemical names instead. Use our search tool to look up any E-number.

E100-E199: Colors
E200-E299: Preservatives
E300-E399: Antioxidants
E400-E499: Thickeners & Emulsifiers
E500-E599: Acidity Regulators
E600-E699: Flavor Enhancers
E900-E999: Sweeteners & Others

4. Red Flags to Watch For

Long ingredient lists (20+ items) suggest heavily processed food
Multiple forms of sugar split across the list to avoid being first
Artificial colors (especially if EU would require a warning label)
"Partially hydrogenated" anything = trans fats (banned in EU/US but may remain in older formulations)
Ingredients you cannot pronounce are worth looking up (though many safe additives have complex names)

5. Common Label Phrases Decoded

"Natural flavors"

Could be 100+ chemical compounds derived from plant/animal sources. Not necessarily healthier than artificial flavors.

"Modified food starch"

Chemically or physically treated starch (E1400-E1452). Generally safe but highly processed. "Modified" does NOT mean GMO.

"No artificial preservatives"

May still contain natural preservatives like rosemary extract, cultured dextrose, or vinegar.

"Sugar-free"

Contains artificial sweeteners (aspartame, sucralose, acesulfame K) or sugar alcohols (xylitol, erythritol, maltitol).

6. Use AdditiveChecker

Paste your entire ingredient list into our Ingredient Analyzer to instantly flag concerning additives. Or search any additive by name or E-number in our database of 1000+ additives.