Millions of people with dietary restrictions struggle with food labels every day. Here's the real problem — and how we built SafeScan to fix it.
The Hidden Struggle at Every Grocery Aisle
If you've ever stood in a grocery store, squinting at a tiny ingredient list, trying to figure out if something is safe to eat — you're not alone.
For the 79 million Americans with food allergies, Millions of people looking for halal options, the growing community of vegans and vegetarians, and families managing multiple dietary needs at once — grocery shopping isn't just shopping. It's a high-stakes guessing game.
And the labels don't make it easy.
The Real Problem: Labels Are Designed for Regulators, Not People
Here's what most people don't realize: food labels are technically accurate, but practically useless for the average consumer trying to avoid specific ingredients.
For vegans and vegetarians, the challenge goes beyond spotting "meat" or "chicken." Animal-derived ingredients hide behind names most people wouldn't recognize:
- Casein and whey — both from milk, found in "non-dairy" creamers
- Carmine (or E120) — a red dye made from crushed insects
- Gelatin — derived from animal bones, lurking in gummy candies, marshmallows, and even some yogurts
- L-Cysteine — an amino acid often sourced from duck feathers, used in commercial bread
- Isinglass — fish bladder extract used to clarify some wines and beers
A product can say "plant-based" on the front and still contain animal-derived emulsifiers in the fine print.
For halal consumers, it gets even more complex. Beyond pork and alcohol (which are relatively easy to spot), there's an entire gray area — mushbooh (doubtful) — that requires ingredient-level analysis:
- Glycerin — could be plant-derived or animal-derived. The label won't tell you.
- Mono and diglycerides — same problem.
- Natural flavors — one of the most common ingredients in packaged food, and one of the most opaque. Could contain anything.
- Enzymes — widely used in cheese and baked goods, often from animal sources with no disclosure required.
There's no "halal" or "haram" column on a nutrition label. You're on your own.
For people with allergies, the stakes are literally life-threatening. The FDA's "Big 9" allergens must be declared, but:
- Peanuts can appear as "arachis hypogaea" or "groundnuts"
- Milk hides behind "lactalbumin," "ghee," or "recaldent"
- Eggs show up as "albumin," "lysozyme," or "meringue powder"
- "May contain" warnings are voluntary — a manufacturer can choose not to disclose cross-contamination risks
And if you're managing allergies for a child, or for multiple family members with different restrictions? Multiply that cognitive load by every person, every product, every shopping trip.
What We Built: SafeScan
We got tired of the mental gymnastics. So we built SafeScan — a free iOS app that turns your phone's camera into a personal food safety analyst.
How it works:
- Scan the barcode. SafeScan looks up the product from a database of over 3 million food items.
- Photograph the ingredient label. The app uses on-device OCR to read the actual text — because sometimes the database is incomplete, and the physical label is the ground truth.
- Get a clear verdict. Safe. Unsafe. Caution. The app cross-references every ingredient against your personal profile using a curated database of hundreds of allergen synonyms, hidden sources, and dietary restriction rules.
No account required. No data leaves your phone. It works offline.
Family Profiles
This was the feature that started the whole project. Real families don't have one set of dietary needs — they have many.
SafeScan lets you create separate profiles for each family member. Your daughter is allergic to tree nuts and eggs. Your partner keeps halal. You're vegan. One app handles all of it. You can even scan a single product and see the verdict for every family member at once.
The Ontology Under the Hood
The part we're most proud of (and the part you'll never see) is the allergen ontology — a hand-curated knowledge graph that maps thousands of ingredient names to their actual sources.
It knows that "surimi" may contain egg. That "stearic acid" can be animal-derived. That "E471" is a mono/diglyceride that could come from pork fat. That "arachis oil" is just another name for peanut oil.
When you scan a product, you're not just doing a string match against a list of allergens. You're running every ingredient through a multi-strategy lookup that catches what human eyes miss.
Who This Is For
- Parents managing food allergies for kids who can't read labels yet
- Navigating religious dietary laws in countries where those laws aren't reflected on packaging
- Vegans and vegetarians who are tired of discovering animal ingredients after buying something
- Anyone with a "custom avoid" list — whether it's MSG, carrageenan, Red 40, or high-fructose corn syrup
- Families where everyone at the dinner table has different restrictions
The Honest Disclaimer
SafeScan is an aid, not a medical device. For severe allergies, always verify with the manufacturer. We built this to reduce the daily cognitive burden of reading labels — not to replace medical advice.
Try It
SafeScan is free, ad-free, and private. Available on the App Store for iPhone and iPad.
If this resonates with you, we'd genuinely appreciate you sharing it with someone who spends too long reading ingredient lists. That's who we built it for.
