What’s Up With All the Food Allergies Lately?

If it feels like everyone is suddenly “allergic” to something, you’re not imagining it. Food allergy diagnoses and allergy related conditions are common, and many people are also dealing with food intolerances that can look similar.

In this post, I’m going to break down what might be driving the rise in reactions (especially dairy and gluten), why modern food systems can add fuel to the fire, and what you can do next if you suspect a true allergy versus an intolerance.

• True food allergy is an immune reaction and can be serious, sometimes anaphylaxis.
• Food intolerance usually means digestion or sensitivity issues (bloating, cramps, diarrhea, headaches), but not the same immune mechanism.
• Celiac disease is an autoimmune condition triggered by gluten and it is not the same as “gluten sensitivity.”

This matters because the best next step depends on which bucket you’re in.

Why are reactions more common now?

There is no single villain, but there are a few big forces that show up again and again in the research:

1) Our immune systems are being trained differently

Modern living changes exposure to microbes, infections, pets, soil, and the “messy” inputs that used to shape immune tolerance. This is part of what people refer to as the hygiene hypothesis (now expanded into broader immune training and microbiome.

2) The gut microbiome is under pressure

Your gut lining and microbiome help decide what is “safe” and what is a threat. Diet patterns that are low in fiber and high in ultra processed foods can reduce microbial diversity and shift inflammation, which may influence allergic disease risk. 

3) Antibiotic exposure, especially early in life

Antibiotics can be life saving, and they also can disrupt the microbiome. Large analyses have found that early life antibiotic exposure is associated with higher odds of later allergic outcomes, including food allergy. 

4) Better awareness and better testing

Some of the “increase” is real, and some is that we are finally recognizing and diagnosing it more consistently. Celiac disease diagnoses have increased substantially over time, and experts note improved recognition and testing as part of the story.

Dairy reactions: is it really “milk allergy”?

Dairy is a big umbrella. Three common scenarios look similar but are not the same:

• Lactose intolerance (a sugar digestion issue).
• Milk protein allergy (immune reaction to casein or whey, more common in kids).
• Sensitivity to certain milk proteins, including interest in A1 versus A2 beta casein.

About A1 versus A2 milk: some human studies suggest that milk containing only A2 beta casein may cause fewer gastrointestinal symptoms in certain people compared with conventional milk. This appears most relevant for digestive discomfort, not necessarily true IgE mediated milk allergy. 

Practical takeaway: if you tolerate fermented dairy (yogurt, kefir) better than milk, or you get bloating without classic allergy signs, you may be dealing with intolerance, dose, and gut sensitivity. An evidence based experiment can help (more on that below).

Gluten reactions: why does it feel “everywhere” now?

First, two things can be true at once: celiac disease diagnoses have increased, and many people who avoid gluten do not have celiac disease. For non celiac gluten sensitivity, controlled challenge studies suggest that gluten itself is not always the main trigger, and fermentable carbohydrates (FODMAPs) plus nocebo effects can play a big role for some people.

This is why I always encourage: do not self diagnose celiac disease by removing gluten before testing. If you think celiac is possible, ask your clinician about proper evaluation first.

What about glyphosate?

You’ll hear a lot of strong claims online. Here’s the most honest summary: glyphosate has been proposed as a contributor to gut and immune issues, and there are papers discussing potential mechanisms, but the “glyphosate caused the gluten epidemic” narrative is not settled science. Even celiac organizations note that early claims were controversial and have been questioned. 

My coaching stance: you do not need to hang your entire health story on one chemical. You can still make smart, practical choices that lower overall exposure and support gut resilience.

How commercial farming and “profits first” can show up in your body

This is not about demonizing farmers. It’s about acknowledging the incentives of large scale systems:

• Heavy reliance on ultra processed foods for shelf life and margin, which can mean fewer fibers and polyphenols that feed beneficial microbes. 
• Antibiotic use realities in animal agriculture are complex, but food safety systems do monitor milk for drug residues and enforce action when levels exceed tolerances or safe levels. 
• Monoculture, pesticide use, and modern inputs are part of today’s food chain, and many people choose to reduce exposure where they can.

What to do if you suspect dairy or gluten is a problem

Step 1: Watch for true allergy red flags

• Hives, swelling of lips or tongue, wheezing, throat tightness
• Vomiting right after exposure, especially with skin or breathing symptoms
• Dizziness or fainting

If you have these, this is not a DIY experiment. Get medical guidance.

Step 2: If symptoms are more “gut and fog” than “anaphylaxis,” run a clean experiment

• Remove one thing at a time for 2 to 3 weeks (example: dairy first, then gluten later)
• Track symptoms daily (bloating, stool changes, skin, congestion, headaches, energy)
• Reintroduce intentionally and observe the pattern

Step 3: Use “better tolerated” swaps strategically

• Dairy: try lactose free first if lactose is suspected, try fermented options, or consider a short trial of A2 dairy if your issue is digestive discomfort (not true allergy). 
• Gluten: if celiac is suspected, test before removing gluten. If you already tested negative, consider whether wheat FODMAPs or overall ultra processed intake are bigger drivers than gluten itself. 

Step 4: Support the gut and immune “training plan”

• Prioritize fiber from whole foods (vegetables, beans, oats if tolerated, berries)
• Aim for diversity, not perfection
• Reduce ultra processed foods where you can, especially when symptoms flare.
• Use antibiotics only when needed, then rebuild with food first habits.

Disclaimer

This article is for education and general wellness support only and is not medical advice. Food allergies and celiac disease can be serious. If you have symptoms like hives, swelling, trouble breathing, fainting, or severe reactions after eating, seek urgent medical care. For diagnosis and treatment, work with your licensed healthcare professional.

No cows were harmed in this writing.

Sources

1. CDC, NCHS Data Brief: Diagnosed allergic conditions in children aged 0 to 17 years (2021). 
2. CDC press release: U.S. adults and children with selected allergic conditions (Jan 8, 2026). 
3. Ahmadizar et al. Early life antibiotic exposure and risk of allergic symptoms including food allergy (meta analysis), PubMed (2018).
4. Brooke Taylor et al. Systematic review on gastrointestinal effects of A1 versus A2 beta casein (2017).
5. Sheng et al. Human trial: milk containing only A2 beta casein and gastrointestinal symptoms (2019).
6. Jianqin et al. Human study: A1 versus A2 beta casein and digestive outcomes (2016). 
7. Lebwohl et al. Review: incidence increasing partly due to improved recognition and testing, Gastroenterology (
8. Pfefferle and Renz. Review: hygiene hypothesis development and immune training (2021). 
9. del Giudice et al. Review: ultra processed foods, microbiome, and allergic disease pathways (2025). 
10. FDA: National Drug Residue Milk Monitoring Program and enforcement plan (overview).
11. Beyond Celiac: glyphosate and celiac disease discussion and controversy summary.
12. Biesiekierski review: non celiac gluten sensitivity evidence and challenges (2025).