What is Alpha-Gal Syndrome?

Alpha-Gal Syndrome (AGS) is an allergic condition triggered by the bite of a Lone Star tick. It causes allergic reactions to galactose-alpha-1,3-galactose (alpha-gal), a sugar molecule found in most mammals. Symptoms typically appear 3-6 hours after eating red meat, pork, or lamb, and can range from hives to life-threatening anaphylaxis. According to the CDC, over 450,000 Americans may have developed AGS since 2010.

What foods should Alpha-Gal patients avoid?

Alpha-Gal patients must avoid all mammalian meat including beef, pork, lamb, venison, and bison. Many also react to mammalian by-products like gelatin (found in gummy vitamins and gel capsules), dairy products, and ingredients derived from mammals such as lard, tallow, and carrageenan. Safe alternatives include poultry (chicken, turkey, duck), fish, seafood, eggs, and all plant-based foods.

What medications are safe for Alpha-Gal Syndrome?

Many medications contain hidden mammalian ingredients. Gel capsules and softgels often contain bovine or porcine gelatin. Safe alternatives include tablets, caplets, liquids, and capsules made with vegetable-based HPMC. Always check inactive ingredients for gelatin, magnesium stearate (usually plant-derived in US), lactose, and stearic acid. VectorShield helps patients identify safe medication alternatives.

What are the 4 sensitivity levels of Alpha-Gal Syndrome?

Alpha-Gal sensitivity varies by patient: Level 1 (Mild, ~40%) - react only to mammalian meat; Level 2 (Moderate, ~30%) - also react to gelatin products; Level 3 (Significant, ~20%) - also react to dairy products; Level 4 (Severe, ~10%) - react to trace amounts and cross-contamination, sometimes called 'super reactors'. Sensitivity can change over time, especially with additional tick bites.

Can Alpha-Gal Syndrome be cured?

There is currently no cure for Alpha-Gal Syndrome, but many patients see improvement over time if they avoid additional tick bites. Some patients report tolerance returning after 1-5 years of strict avoidance and no new tick exposures. However, a single new tick bite can restart or worsen the condition. Management focuses on strict avoidance of trigger foods and carrying emergency medication like epinephrine.

Your Alpha-Gal Safety Toolkit

Everything you need to stay safe

Name: VectorShield
Author: HutchWare, LLC

Medication checking, restaurant safety ratings, food analysis, community reports, and sensitivity profiles -- all in one app, personalized to your sensitivity level.

Core Safety Features

Databases, analyzers, and community tools that help you make safe choices every day.

Medication Checker

Check any medication for hidden mammalian-derived ingredients like gelatin capsules, magnesium stearate, and bovine-sourced excipients. Cross-referenced with FDA OpenFDA and DailyMed databases.

FDA-sourced ingredient data
Prescription & OTC coverage
Emergency meds always free
5 free checks/day, unlimited with Premium

Restaurant Safety Database

Find Alpha-Gal safe restaurants near you. 377 restaurants with 8,400+ menu items analyzed, covering national chains and local favorites -- each rated for your sensitivity level.

377 restaurants, 8,400+ menu items
Cooking fat data & accommodation ratings
Item-level safe/caution/avoid ratings
Community corrections & reviews

Food Safety Analyzer

Analyze any food, menu item, or product for hidden mammalian ingredients. On-device ML classification means your data stays private.

On-device ingredient analysis
Menu item risk assessment
Meal history tracking
Personalized to your sensitivity

Community Safety Reports

Browse and submit restaurant safety reports from the Alpha-Gal community. Sign in with Apple to contribute, vote on reports, and help build a shared safety database.

Verified contributor badges
Like/dislike voting on reports
Restaurant reviews & recipes
Content moderation built-in

Sensitivity Profiles

Customize every recommendation based on your specific sensitivity level -- from meat-only reactions to super reactors who need to avoid trace amounts.

4 sensitivity levels
Personalized safety ratings
Dairy tolerance settings
Adapts all databases to you

Clear Safety Indicators

Every result uses a simple color system so you know exactly what's safe for your sensitivity level.

Safe

No mammalian ingredients detected

Caution

May contain ingredients that affect some patients

Avoid

Contains mammalian-derived ingredients

Unknown

Needs verification -- report to community

App Preview

Restaurant Menu Safety Viewer

See how VectorShield analyzes restaurant menus for Alpha-Gal safety. Try changing the sensitivity level to see how ratings adapt.

Chick-fil-A

American / Fast Food

Last verified: December 16, 2025

15 menu items analyzed

Your Sensitivity Level

Safety ratings adapt based on your sensitivity. Higher levels flag dairy, cross-contamination, and trace ingredients.

Summary:

13 Safe

0 Caution

2 Avoid

Original Chicken Sandwich

Poultry-based, pressure-cooked in refined peanut oil

SAFE

Spicy Chicken Sandwich

Poultry-based with spicy seasoning blend

SAFE

Grilled Chicken Sandwich

Grilled chicken breast, no mammalian ingredients

SAFE

Spicy Deluxe Sandwich

Poultry-based with lettuce, tomato, pepper jack cheese

SAFE

Cobb Salad

Contains bacon (pork) -- avoid at all sensitivity levels

bacon

AVOID

Chicken Nuggets (12 ct)

Breaded chicken breast, pressure-cooked in peanut oil

SAFE

Grilled Nuggets

Grilled chicken pieces, no breading

SAFE

Waffle Potato Fries

Cooked in canola oil, no mammalian ingredients

SAFE

Mac and Cheese

Pasta with cheese sauce -- contains dairy

SAFE

Chicken Noodle Soup

Chicken-based broth with noodles, no mammalian meat

SAFE

Fruit Cup

Fresh mixed fruit, always safe at all levels

SAFE

Chicken Biscuit

Chicken fillet on a biscuit, no mammalian ingredients

SAFE

Hash Brown Scramble Bowl

Default includes pork sausage -- AVOID or request chicken-only

pork sausage option

AVOID

Milkshake (Cookies & Cream)

Ice cream-based milkshake -- contains dairy

SAFE

Lemonade

Freshly made lemonade, always safe at all levels

SAFE

See all 326 restaurants in the app

The VectorShield app includes 5,240 menu items across 326 restaurants -- chains and local spots -- all analyzed for Alpha-Gal safety and personalized to your sensitivity level.

Personalized ratingsCommunity verifiedUpdated regularly

Download for iOS Explore All Features

How It Works

Three steps to safer eating, shopping, and living.

Download free

Available on iOS with Apple Watch support

Set your sensitivity

Take the quiz or choose your level manually

Check anything

Medications, restaurants, and products -- all rated for you

Experimental -- Premium Only

Vital Sign Monitoring

Premium subscribers can opt into experimental vital sign monitoring via Apple Watch and other wearables. This feature uses your heart rate, HRV, and other vitals to detect potential reactions -- even from hidden ingredients that food logging misses. This is a research preview, not a medical device.

Heart rate trackingHRV analysisPersonal baselines5+ wearables supported

Ready to stay safe?

Download VectorShield free and start checking medications, restaurants, and products today.

Download Free Take the Sensitivity Quiz