What are the side effects of spices?

In this brief guide, we will address the query, “What are the side effects of spices?” We will also discuss the general side effects of spices in detail. Moreover, we will also describe the additional harmful impacts that particular spices may have on your health.

What are the side effects of spices?

Although most spices contain healing properties that provide you with many health benefits, excess consumption of any spice can have a reverse effect on your health causing different health issues. 

Let us discuss some of the common side effects of spices:

Allergic reactions 

There have been reports of allergic reactions to spices such as coriander, caraway, oregano, cumin, and thyme. These allergic responses can lead to more severe issues such as facial swelling, throat swelling, severe diarrhea, stomach pain, skin darkening, irritation, hives, itching, and so on. You may also have peanut allergies because ground cumin contains peanuts sometimes.

Skin rashes 

Some hot spices like cinnamon and nutmeg can cause red dermatitis and itchy rashes on your skin when they come in contact. So, it’s best not to touch these spices with bare hands.


If you have a habit of eating excessive spicy foods, stop it this instant because it can cause problems like nausea, upset stomach, and even diarrhea in extreme cases. This is due to the fact that spicy foods generate excessive heat in the body, which may disrupt the natural flora of the stomach. 

Consumption of excessive spicy food might also cause symptoms in individuals who have irritable bowel syndrome (IBS). 


Asthma is a common problem caused by inhaling different spices. Spices like chili powder and pepper have intense aroma and may trigger symptoms of asthma when inhaled. You may experience coughing, wheezing, and extreme discomfort in the chest and throat when the smell of these spices enter your nose or mouth.

Excessive coriander intake could also result in acute breathing problems, which can progress to chronic lung illnesses like asthma. You may also experience shortness of breath along with a dry and tight throat and chest on occasions, so it’s best to avoid the use of coriander if you have respiratory problems.

Skin sensitivity

Coriander has acidic components that may make your skin excessively photosensitive. This makes you more prone to sunburn whenever your skin is exposed to sunlight. Exposure to UV radiation may also increase your risk of developing skin cancer.

Fetal damage (in pregnant women)

You should avoid the consumption of spices like coriander, garlic, angelica, peppermint, fenugreek, ajinomoto and asafoetida during pregnancy. Garlic and Angelica have blood-thinning properties, therefore consuming too much of these can result in bleeding or miscarriage. 

Spices such as fenugreek, Ajinomoto, and asafoetida have been shown to stimulate the uterus and cause early contractions. Excessive coriander intake can also be harmful to your baby as well as your health during pregnancy. 

Some coriander components are known to disrupt the proper functioning of the female reproductive gland, which can either impact expecting mothers or harm the overall health of the developing fetus.

What are some other negative effects of using certain spices?

Each spice has different properties so not all spices can have the same effect on your body. We’ve already addressed some of the general side effects of spices, so let’s focus on to the bad effects of specific spices:

  • Excessive consumption of cumin seeds can cause brain fog, fatigue, and nausea.
  • Coriander is known to cause oral inflammation. The acidic components which make our skin photosensitive are also responsible for oral inflammation. It may cause severe swelling in the lips, gums, and throat areas.
  • Although turmeric is the safest spice, consuming too much of it may result in upset stomach, nausea, dizziness, or diarrhea.
  • Likewise, excessive parsley also may increase the risk of anemia and liver or kidney problems.
  • Excessive consumption of chillies may result in heartburn due to acid reflux. Learn more about the foods that cause heartburn here.
  • Star anise is believed to contain neurotoxins that can cause severe physical symptoms such as seizures, hallucinations, and nausea.
  • Consuming more black pepper than what is added to food may increase the risk of bleeding in those with bleeding disorders.


In this brief guide, we have addressed the query, “What are the side effects of spices?” We have also discussed the general side effects of spices in detail. Moreover, we have also described the additional harmful impacts that particular spices may have on your health.



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