Garlic Allergy: Signs and Symptoms

Allergies to garlic are relatively uncommon but can cause significant discomfort and health issues for those who are sensitive. In this blog, we will explore the signs and symptoms of a garlic allergy and delve into the reasons why garlic can sometimes make you gassy.

Garlic, a pungent herb commonly used in cooking, shares allergenic properties with onions and chives. Allergic reactions to garlic can manifest in various symptoms, highlighting the importance of recognizing the signs for proper diagnosis and management.

One of the most common signs of a garlic allergy is contact dermatitis, which presents as a skin rash. Some additional symptoms may include hives, itching, redness of the skin, tingling in the mouth, inflammation of the lips, tongue, cheek, or throat, shortness of breath, anaphylaxis (a severe allergic reaction), abdominal pain, diarrhoea, vomiting, nausea, and dizziness.

Identifying these signs and symptoms is crucial in determining whether you have a garlic allergy. If you suspect you are allergic to garlic, it is essential to seek professional medical advice. [1]

Just like any other allergy, a garlic allergy occurs when your immune system reacts to certain proteins in garlic, mistakenly perceiving them as harmful substances. This immune response triggers an allergic reaction. It's important to understand that allergies, including food allergies, can be triggered by even a minuscule amount of the allergen. In fact, food allergies affect about 8% of children and 3% of adults, with common culprits being peanuts, tree nuts, and shellfish.

In the case of garlic allergy, the immune system identifies specific proteins, particularly allicin, found in garlic as invaders and initiates the allergic response. When you consume garlic, your immune system produces antibodies, such as immunoglobulin E (IgE), which release chemicals that result in allergy symptoms.

However, it's worth noting that not all adverse reactions to garlic indicate a true allergy. Some individuals may experience intolerance or digestive discomfort when consuming garlic, without an actual allergic response. This intolerance could be due to difficulties in digesting garlic's high sulfur content, leading to symptoms like bloating, gas, or stomach upset.

If you suspect you have a garlic allergy or experience negative reactions after consuming garlic, it's important to consult with a healthcare professional for proper diagnosis and guidance. They can help differentiate between an allergy and intolerance and provide appropriate recommendations to manage your symptoms effectively. [2]

Garlic can cause gas and bloating because it contains fructans which are fermentable carbohydrates that are difficult for the body to digest fully. When these fructans reach the large intestine, they are fermented by bacteria, leading to gas production and symptoms like bloating and abdominal discomfort.

Additionally, garlic's sulfur compounds, such as allyl methyl sulfide, can be challenging for the body to digest completely. When these compounds reach the large intestine, gut bacteria breaks them down, resulting in the production of gas.

It's important to differentiate between normal digestive reactions to garlic and a true garlic allergy, which involves an immune system response. If you experience persistent or severe gastrointestinal symptoms after consuming garlic, it's recommended to consult with a healthcare professional for proper evaluation and guidance. [3]

Garlic is present in multiple dishes across our dishes and thus its important that if you suspect you have a garlic allergy, you seek immediate medical advice for proper diagnosis and guidance. Identifying the signs and symptoms of a garlic allergy can help you take appropriate precautions and make necessary dietary adjustments.