Reading Labels: The Complete Guide

Label reading is a survival skill for celiacs. But it’s more complex than just avoiding “wheat.” Here’s everything you need to know.

The Big Three: What You’re Avoiding

Wheat: The obvious one. Includes all varieties: durum, semolina, spelt, kamut, einkorn, farro.

Barley: Often hidden in malt (malt flavoring, malt extract, malt syrup, malt vinegar).

Rye: Less common but shows up in some breads, crackers, and whiskeys.

The Allergen Statement

In the US (and most countries), wheat must be declared as a major allergen. Look for the allergen statement, usually at the end of the ingredient list:

“Contains: Wheat, Milk, Soy”

or

“Allergen Info: Contains wheat and eggs”

Important: This statement covers wheat but NOT barley or rye. You still need to read the full ingredient list.

The “Gluten-Free” Label

In the US, “gluten-free” means:

• Less than 20 parts per million (ppm) of gluten
• No gluten-containing grains unless processed to remove gluten
• Regulated by the FDA

If a product says “gluten-free,” you can generally trust it. Companies can be penalized for false claims.

But: “Gluten-free” is voluntary. Not all safe products are labeled. And some products without the label may still be safe.

Ingredient List Deep Dive

Definitely Avoid

• Wheat (any variety)
• Barley
• Rye
• Malt (barley malt, malt extract, malt flavoring, malt vinegar)
• Brewer’s yeast
• Triticale (wheat-rye hybrid)

Usually Safe (But Check)

Oats: Only safe if certified gluten-free. Regular oats are cross-contaminated.

Modified food starch: In the US, if from wheat, it must be declared. Usually from corn or potato.

Dextrin: Usually from corn or tapioca. If from wheat, must be declared.

Glucose syrup: Even if from wheat, so processed that it’s generally safe. But check for certainty.

Maltodextrin: In the US, almost always corn-based. If from wheat, must be declared.

Tricky Ones

Natural flavors: Can occasionally contain barley malt. If concerned, contact the manufacturer.

Caramel color: In the US, almost always from corn. Rarely problematic.

Soy sauce: Contains wheat unless specifically labeled GF (use tamari).

Worcestershire sauce: Many contain malt vinegar. Check the label.

Seasonings and spice blends: May contain wheat as a filler. Always check.

Hydrolyzed vegetable protein: Can be from wheat. Check the source.

”May Contain” Warnings

You’ll see warnings like:

• “May contain wheat”
• “Processed in a facility that also processes wheat”
• “Made on shared equipment with wheat”

These are voluntary warnings about cross-contact risk. What they mean:

Strictly speaking: The product itself doesn’t contain gluten, but cross-contamination is possible.

In practice: Many celiacs avoid products with these warnings. Others eat them without issue.

My approach: If the product says “gluten-free” AND has a “may contain” warning, the GF testing should cover the risk. If it doesn’t say GF, I’m more cautious.

Certified Gluten-Free

Various organizations certify products:

• GFCO (Gluten-Free Certification Organization), 10 ppm standard
• NSF, meets FDA 20 ppm
• Others

Certified products undergo testing and auditing. More stringent than the FDA label alone.

The symbol: A crossed-out wheat stalk or the organization’s logo.

Reading Beyond Ingredients

Check the “Contains” statement

Quick scan for wheat declaration.

Read the ingredient list fully

Look for barley, rye, malt, not covered in the allergen statement.

Note warnings

“May contain wheat” is information, not prohibition.

Look for “gluten-free” claim

Voluntary but regulated.

Watch for certification seals

Extra assurance.

Common Pitfalls

Assuming based on appearance

A package that looks healthy or “natural” isn’t automatically safe.

Trusting restaurant labels

“GF” on a menu doesn’t equal manufacturer-level safety. Ask about prep.

Not re-checking

Formulations change. Check products you haven’t bought in a while.

Foreign products

Labeling laws vary by country. Be extra careful with imports.

Supplements and medications

These can contain gluten. Check with the manufacturer.

Products That Trip People Up

Soy sauce: Wheat-based unless marked GF. (Use tamari.)

Beer: Barley-based. (Use GF beer.)

Licorice: Often contains wheat. (Check or avoid.)

Imitation crab: Often contains wheat.

Seasoned chips and snacks: Malt or wheat starch common.

Gravy and sauces: Flour as thickener.

Communion wafers: Contain wheat. (Use low-gluten hosts.)

Play-Doh: Not food, but kids eat it. It’s wheat-based.

Creating a System

Reading every label every time is exhausting. Build a system:

Safe list

Products you’ve verified and buy regularly. No need to re-check each time.

Check-every-time list

Products with occasional formula changes, or items you buy rarely.

Avoid list

Products that have burned you or that you don’t trust.

Apps

Apps like “Fig” or “Yummly” can scan barcodes and flag gluten. Useful but not infallible.

When You’re Unsure

Option 1: Don’t buy it. There’s always another option.

Option 2: Contact the manufacturer. Most have consumer lines or contact forms. Ask specifically about gluten content and cross-contamination.

Option 3: Look for crowd-sourced info. Celiac communities often share experiences with specific products.

International Labels

Different countries have different requirements:

US: Wheat declared. 20 ppm for “gluten-free.”

EU: Same 20 ppm standard. “Very low gluten” is 21-100 ppm.

Canada: Wheat, barley, rye, oats must be declared. 20 ppm for GF.

Australia: Strictest standard, no detectable gluten for “gluten-free.”

If you’re eating imported products or traveling, know the local rules.

The Learning Curve

At first, label reading takes forever. You stand in the grocery aisle reading every ingredient list like it’s a contract.

It gets faster. You memorize safe products. You develop instincts. Eventually, it becomes second nature.

But never stop reading. Formulations change. Vigilance is permanent.

You’ll get good at this. And that skill keeps you safe.