Tummy Troubles After Drinking? It Could Be Wine Allergy!

Love wine but find yourself feeling a bit off after a glass or two? You're not alone! Many people have unpleasant reactions to certain components giving rise to symptoms like hives and abdominal pain. Just like some people have allergies to pollen or pets, there are individuals who may experience adverse reactions to wine due to a wine allergy. And, what’s more? Your genes influence whether you are prone to have a wine allergy. Read on to understand the telltale signs and risk factors of wine allergy and how to evaluate your risk for it.

What Is Wine Allergy?

Wine allergy is an adverse immune system reaction triggered by specific components found in wine. It is a relatively rare condition, affecting approximately 10% of the general population.

There are two primary forms of allergic reactions to wine:

Immunologic reactions (wine allergy)
Intolerance reactions (wine intolerance)

Wine Allergy vs. Wine Intolerance: What’s The Difference

It's crucial to differentiate between wine allergy and wine intolerance. While both conditions can cause uncomfortable symptoms, they are distinct in their underlying mechanisms.

Wine allergy: Wine allergy involves a response from the immune system when certain allergens present in wine are encountered. These compounds are seen as foreign invaders by the immune system, triggering an allergic reaction.
Wine intolerance: On the other hand, wine intolerance is characterized by difficulties in digesting or metabolizing specific components found in wine, such as sulfites or histamines.

Can You Suddenly Become Intolerant To Wine?

Yes, someone can suddenly develop an intolerance to wine, even previously having no problems with it.

Wine intolerance is the inability of the body to metabolize or process specific components of wine, resulting in uncomfortable responses.

This can be passed down genetically or due to overtime changes in sensitivity, underlying health conditions, or lifestyle factors.

If someone suspects wine intolerance, it is recommended to consult a healthcare professional for guidance.

What Allergens In Wine Cause The Allergic Reaction?

Several allergens present in wine can cause an allergic reaction. Some of the common allergens include:

Sulfites: These chemicals, used as preservatives in winemaking, can trigger asthma symptoms and allergic reactions in susceptible individuals.
Histamine: Naturally occurring during fermentation, histamine can cause headaches, flushing, and nasal congestion in people sensitive to it.
Grape proteins: Specific grape proteins, such as lipid transfer protein Vit v1, can lead to allergic reactions.
Fining ingredients: Substances used in the fining process, like fish gelatin or isinglass, can act as allergens and trigger allergic responses.
Other allergens: While less common, other substances in wine, such as certain enzymes, molds (e.g., Botrytis cinerea), and insect proteins, can also cause allergic reactions.

Do All Types Of Wine Cause Allergies?

Several studies have revealed that red wine is more likely than other types of wine to cause allergic responses.

In a 2005 study, 83 percent of participants reported symptoms such as nasal congestion, sneezing, and nasal discharge after consuming red wine.

With 31% of respondents feeling similar symptoms, white wine came in next.

According to a recent study, more people reported allergy-like symptoms after drinking red wine compared to white wine. Women were also shown to be more sensitive to wine intolerance than men.

Can You Be Allergic To Some Wines And Not Others?

It is truly possible to be allergic to specific wines and not others. The allergens and their concentrations can differ between different wine varieties and brands.

As a result, someone may experience an allergic reaction to one type of wine but not to another. Understanding your triggers can help you make informed choices and avoid wine allergies.

Symptoms Of Wine Allergy

Wine allergies can cause a variety of symptoms that impact several body systems and can differ from one person to another, which commonly includes:

Skin reactions

Hives (itchy raised bumps on the skin)
Redness
Swelling (angioedema)
Respiratory problems

Nasal congestion
Sneezing
Runny nose
Coughing
Wheezing
Shortness of breath
Digestive issues

Nausea
Vomiting
Diarrhea
Abdominal pain or cramping
Headaches

Migraines
Tension headaches
Anaphylaxis (rare but life-threatening, requires immediate medical attention)

Difficulty breathing
Tightness in the chest
Rapid heartbeat
Severe swelling
Low blood pressure

If you experience any of the wine allergy symptoms mentioned above after drinking wine, it is recommended that you consult with your doctor for a better treatment plan.

How Do I Know If I Am Allergic To Wine?

If you suspect any adverse reaction your body faces gradually after drinking wine, there are ways to find out if you have the specific wine allergen responsible.

Skin prick test: This is a common method in which a small amount of the suspected allergen is given to your skin by a mild prick or injection.

If you are allergic to the tested material, you may experience redness, itching, or swelling at the testing site.

Blood test: This can be done by taking a sample of your blood and analyzing it in a laboratory. The lab looks for the presence and levels of IgE antibodies in opposition to allergens.

This type of testing can help identify your immune response to specific allergens found in wine, such as yeast or sulfites.

Immune System and Wine Allergy/Genetics Of Wine Allergy

An important factor in wine allergies is the immune system.

An allergic person's immune system generates immunoglobulin E (IgE) antibodies when exposed to specific allergens found in wine.

Certain genetic variations can make a person more susceptible to producing higher levels of IgE in response to these allergens.

Histamines and other chemicals are released when IgE antibodies interact with basophils and mast cells to induce allergy symptoms.

Genes That Cause Wine Allergy

Our bodies have different ALDH enzymes that help process alcoholic beverages.

ALDH has four forms, and one specific form called ALDH2 is responsible for breaking down a substance called acetaldehyde. When this process doesn't work properly due to gene variations, it can lead to wine allergy symptoms like flushing.

The ALDH2 gene produces the ALDH2 enzyme and comes in two variations: ALDH2¹ and ALDH2².

People inherit two copies of this gene, and this results in three possible combinations:

ALDH2¹/2¹ (both copies functional)
ALDH2¹/2² (one copy functional)
ALDH2²/2² (both copies are defective)

Having at least one copy of the defective ALDH2² gene reduces the enzyme's activity, causing the slower breakdown of acetaldehyde.

As a result, acetaldehyde levels increase after consuming alcohol, leading to wine allergy symptoms.

Who Can Get Wine Allergy

Whether you're young or old, male or female, it doesn't matter. Wine allergies can happen to anyone.

Let's explore some of the conditions where chances are more:

You may be more susceptible to developing a wine allergy if you've already experienced sensitivities to particular foods or beverages.
Asthma or hay fever patients could also be more likely to experience wine allergies.
Some people can be more sensitive to certain compounds of wine, like sulfites, histamines, or grape proteins, which can trigger those allergic reactions.
If your immune system isn't at its strongest, it could make you more vulnerable to wine allergies.

Diagnosis, Treatment, And Management Of Wine Allergy

Identifying a wine allergy starts with recognizing allergic reaction symptoms after drinking wine. Doctors use skin pricks and blood tests to confirm the allergy to determine specific allergens.

Treatment

Antihistamines: For mild reactions, prescribed antihistamines can help relieve symptoms like itching and hives.
Epinephrine autoinjector (EpiPen): In severe cases or with sulfite sensitivity, carrying an EpiPen can be life-saving. It provides emergency treatment while waiting for medical help.
Oral immunotherapy: Still being studied for wine allergies, oral immunotherapy involves gradually introducing small allergen doses to build tolerance.

Note: All of these only be taken with close medical supervision.

Management

To manage wine allergy and prevent reactions:

Avoidance: If you're allergic, the best approach is to avoid wine entirely.
Identify allergens: If you know the specific wine component triggering the allergy, like a certain type of wine or grape, avoid it.
Read labels: Be attentive to wine labels, as they must disclose sulfite presence, a common allergen.
Be cautious: Be careful even if you've had wine without issues. Allergic reactions can be severe, so it might be best to avoid all alcoholic beverages you suspect might trigger allergies.

If you suspect a wine allergy or experience allergic reactions after drinking wine, consult a healthcare professional for proper diagnosis, treatment, and management guidance.

How Do You Fix A Wine Allergy?

The best approach is to manage the condition by avoiding allergens and minimizing exposure to substances that trigger allergic reactions.

Taking the advice of healthcare professionals, following recommended treatment plans, and maintaining open communication with your medical team can help effectively manage your wine allergy.

Summary

Wine allergies and intolerances can cause discomfort and adverse reactions.

Wine allergy involves an immune system that responds to specific allergens in wine leading to symptoms like skin reactions, headaches, respiratory issues, and anaphylaxis in severe cases.

While wine intolerance results from difficulty digesting components like sulfites or histamines, causing similar symptoms without immune involvement.

Common allergens in wine include sulfites, histamines, grape proteins, and fining ingredients.

Red wine is more likely to cause allergic responses than other types.

Skin prick and blood tests help identify allergens and measure the immune response.

Genetic variations, like the ALDH2 gene, can contribute to wine allergies. Anyone can develop a wine allergy, but those with previous sensitivities, asthma, hay fever, or sensitivity to wine compounds may be more vulnerable.

Managing wine allergy involves avoiding allergens, identifying triggers, and reading labels.

Prescribed antihistamines, carrying an EpiPen for severe reactions, and oral immunotherapy (under medical supervision) are potential treatment options.

By being mindful and consulting with healthcare providers, individuals can manage wine allergies responsibly and continue to enjoy wine with awareness.