Living with alpha-gal syndrome (AGS)—an tick-borne allergy to most mammalian meats and by-products—often means cutting out staple foods like beef, pork, lamb, dairy, cheese, yogurt, and gelatin. While reducing the intake of “alpha-gal containing foods” is important for your immune system, this can leave gaps in key nutrients your body needs.
Here’s a look at common deficiencies with alpha-gal syndrome and how to fuel your body safely and effectively with foods that won’t trigger an allergic reaction.
Key Nutrient Gaps with Alpha-Gal Allergy
You may unknowingly miss several nutrients typically abundant in mammal-derived foods if you have alpha-gal syndrome, including:
- Calcium
- Vitamin D
- Iron
- Vitamin B12
- Zinc
- Protein
Vitamin B12, iron, vitamin D, calcium, and zinc are often nutrient deficiencies our alpha-gal syndrome patients face as areas of concern—especially for those limiting or eliminating dairy and meat entirely.
Let’s take this a step further and explain why these certain nutrients may be missing in your nutrition habits with alpha-gal allergy and talk about foods you can add to your nutrition habits to reduce nutritional deficiencies and feel better!
Nutrient Breakdown & alpha-gal Friendly Foods
1. Calcium
Why is this nutrient lacking?: Dairy is a key calcium source. Dairy is a by-product of mammalian animals (cow, goat, etc.) which can trigger an alpha-gal allergy reaction.
Daily need: 1,000 mg
Top alpha-gal friendly food sources for calcium include (per 1/2 cup serving):
- Tahini: 427 mg
- Collard Greens: 232 mg
- Kale: 150 mg
- Tofu (soft): ~114 mg
- Almonds: 76 mg (*per 1 oz serving)
2. Vitamin D
Why is this nutrient lacking?: Fortified milk can be off-limits for many people with alpha-gal allergy; some D3 supplements may contain ingredients that are not alpha-gal allergy friendly so make sure you read the ingredients list and check for any milk products or gelatin.
Daily need: 15-20 micrograms (mcg)
Top alpha-gal friendly food sources for vitamin D include:
- Fortified Plant Milks – like Silk Protein Almond Milk: amount varies per milk
- Salmon (per 4 oz serving): ~ 15 mcg
- Egg Yolks (1 yolk): 1 mcg
- Mushrooms: amount varies per mushroom
- Vegan D3 Supplements – our favorite Vitamin D supplement –> Vitamin D3 Liquid Drops
3. Iron
Why is this nutrient lacking?: Red meat and some organ meats are packed with heme (highly absorbable) iron.
Daily need: ~18 mg (vegetarians and menstruating women may need up to 32 mg per day due to lower absorption rates)
Top alpha-gal friendly food sources for iron include(per ~½ cup cooked):
- Lentils: 3.3 mg
- Chickpeas: 2.4 mg
- Tofu: 3 mg (firm)
- Spinach: 3.2 mg
- Iron-fortified cereals – like Grape Nuts has 16.2mg per 1/2 cup serving –> Check out our go-to alpha-gal friendly cereal recipe to help you meet your iron needs!
Tip: For better iron absorption, make sure you add vitamin C rich foods to your nutrition habits like bell peppers, oranges, strawberries, etc.
4. Vitamin B12
Why is this nutrient lacking?: Vitamin B12 is found in lots of animal-based foods and by-products and is limited in plant foods making it difficult for people with alpha-gal allergy to get enough vitamin B12 from their nutrition habits. Vitamin B12 supports red blood cell production and nervous system function.
Daily need: 2.4 micrograms (mcg)
Top alpha-gal friendly food sources for Vitamin B12 include:
- Fortified Cereals: amount varies per product
- Plant Milks: amount varies per product
- Nutritional Yeast: amount varies per product
- Vitamin B12 Supplement
5. Zinc & Selenium
These trace minerals support immune function and cellular repair. Dairy is a great source of Zinc and Selenium, but some people with alpha-gal allergy can’t consume dairy.
Alpha-gal friendly sources of zinc and selenium include legumes, oats, and seeds—but absorption may be lower. Fortified foods or gentle supplementation may be needed.
6. Protein
Adequate protein remains important for maintaining lean muscle mass and overall health. Sometimes our clients with alpha-gal allergy stop eating protein due to being anxious about any allergic reactions they may have to certain foods so we see rapid muscle loss in some of our clients that have been newly diagnosed. We want to prevent malnutrition and to do that means to find food sources of protein that are safe for you.
Safe options for alpha-gal allergy include
- Poultry (chicken, duck, turkey, ostrich)
- Fish (salmon, tuna, herring, cod, trout, etc.)
- Eggs (duck and ostrich eggs provide more protein than chicken eggs but all are great sources of protein)
- Beans, Legumes, and Tofu (add these to your meals you would previously eat red meat with like tacos, quesadillas, chili, etc.)
FREE Alpha-Gal Allergy Meal Plans and Resources from OakStone Health and Nutrition
Want to learn more about navigating your alpha-gal allergy and get access to different meal plans and recipes you can enjoy? Check out the resources below!
Final Thoughts
If you’re navigating alpha-gal syndrome, awareness of these hidden nutrient gaps—and addressing them with creative, safe food choices—is key to long-term health. A dietitian familiar with alpha-gal syndrome can help you create a nutrition plan and assess if supplementation is needed.
Want to work with one of our dietitians to help you create a nutrition plan that works for your life and alpha-gal allergy?
Alpha-gal nutrition habits can be hard to manage because each person is different. Registered dietitians can help make improving your health less overwhelming!
Although Samantha Turner is a registered dietitian, she is not YOUR registered dietitian. All content in this post is for informational and educational purposes only, does not constitute medical advice, and does not establish any kind of patient-client relationship by your use of these courses, OakStone Health and Nutrition website, and any other OakStone Health and Nutrition programs. Although OakStone Health and Nutrition aims to provide evidence-based general nutrition information, the information presented here is not a substitute for any kind of professional advice, and you should not rely solely on this information. Always consult a healthcare professional in the area for your particular needs before making any medical decisions.
