Side Effects of Oregano

Side Effects of Oregano:- Oregano is a herb commonly used in cooking to add flavor to various dishes. It is generally considered safe for consumption when used in normal culinary amounts. However, like any other herb or spice, consuming excessive amounts of oregano or using oregano oil may lead to certain side effects. Here are some potential side effects of oregano:


Allergic reactions:

Some individuals may be allergic to oregano. If you are allergic to other herbs in the Lamiaceae family, such as mint, basil, or sage, you may also be allergic to oregano. Allergic reactions can range from mild symptoms, like skin rashes or itching, to more severe reactions, including difficulty breathing or anaphylaxis. If you experience any signs of an allergic reaction, seek medical attention immediately.

Gastrointestinal discomfort:

In high doses or when consumed in concentrated forms, such as oregano oil, oregano can cause gastrointestinal issues. These may include stomach pain, indigestion, heartburn, diarrhea, or an upset stomach. It is important to use oregano in moderation and avoid excessive consumption.

Drug interactions:

Oregano may interact with certain medications, especially blood thinners or medications for diabetes. Oregano contains compounds that can potentially increase the risk of bleeding or affect blood sugar levels. If you are taking any medications, it’s advisable to consult your healthcare provider before consuming large amounts of oregano or using oregano oil as a supplement.

Skin irritation:

Applying concentrated oregano oil directly to the skin may cause skin irritation or a burning sensation in some individuals, particularly those with sensitive skin. It is always recommended to dilute essential oils before applying them topically and perform a patch test on a small area of skin to check for any adverse reactions.

Pregnancy and breastfeeding:

Pregnant or breastfeeding women should exercise caution when consuming oregano or using oregano oil. High doses or concentrated forms of oregano might have the potential to stimulate the uterus or negatively affect lactation. It’s best to consult with a healthcare professional before using oregano products during this period.

It’s important to note that the side effects mentioned above are typically associated with consuming large amounts of oregano or using concentrated forms like oregano oil. When used in culinary amounts, oregano is generally safe for most people. However, if you have any concerns or specific health conditions, it’s always a good idea to consult with a healthcare professional before making any significant changes to your diet or incorporating new supplements.

It is completely safe to use oregano in moderation, although in some cases it can cause harm to oregano, which can be as follows:

Pregnancy and breast-feeding:

Consuming oregano may be harmful for pregnant and breast-feeding women. It is believed that excessive consumption of oregano during pregnancy can cause miscarriage.

Bleeding problems:

Bleeding, also known as a bleeding disorder. Bleeding does not stop easily after an injury. In this problem, the amount of platelets in the body decreases, due to which blood clots do not form on the skin and bleeding does not stop. When this happens, there is more bleeding than normal even during menstruation, injury and surgery etc. Consumption of oregano can increase the problem of people suffering from bleeding.


People who are allergic to herbs in the Lamiaceae family, such as basil, lavender, peppermint, and sage, may also be allergic to oregano, since oregano also comes from the same family.

Blood Sugar Levels:

Consuming oregano can lower blood sugar levels, so not using it in a controlled amount can lead to harm of oregano.

Stomach upset:

In some cases, the harm of oregano has also been seen in stomach upset due to not using it in a controlled quantity.

Skin irritation:

Applying oil of oregano directly to the skin can cause skin irritation, so it should always be used in combination with another oil such as coconut or olive oil.

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