Categories: Side effects

10 serious side effects of turmeric

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Today, we are going to see the 10 serious side effects of turmeric.

Turmeric is an excellent health spice and has exceptional health benefits. However, in some cases, and like all herbal medicine, it can cause certain unwanted harmful effects, which is why it is important to know what these harmful effects are and when can they occur before consuming them.

If you are not one of the cases below, then you can buy quality turmeric without hesitation!

Side effects of turmeric

The dangers: a question of dosage
It should be understood that it all depends on the dosage. Turmeric is consumed in the form of capsules, tablets, dietary supplement, spices, dried roots, fresh roots, and each form of turmeric has a different concentration of curcumin.

The powder, the dried and fresh roots are generally for food use, and, apart from the contraindications and possible drug interactions mentioned below, they do not present any danger.


It is especially capsules, tablets and food supplements that can pose a problem if they are highly dosed. In this method of taking, it is always necessary to refer to the instructions for use and a medical opinion.

Contraindications of turmeric

As a precaution, turmeric is contraindicated in people:

•suffering from obstructions and  gallstones


•suffering from liver disease
showing signs of allergy to this plant (rashes, pimples, etc.)
•having medical intervention or tooth extraction within 15 days
These people should take advice from their doctor before taking turmeric, food or therapy.

If you suffer from stomach ulcer or duodenum, avoid consuming turmeric in high dose as it may increase irritation. At a food dose, this does not stop a problem.

10 serious side effects of turmeric

This health risk is due to adulteration processes aimed at lowering production prices and which can play a trick on consumers.

1. It can make you bloated

A study published in Cancer Prevention Research showed that curcumin causes diarrhea, bloating, and other digestive problems in a small number of people.


This is a rare side effect of turmeric , but it is important to know if you take large amounts of the spice regularly.

2. Cause nausea and headache in some people

Other research that saw the light in BMC Complementary Medicine and Therapies focuses on the fact that curcumin can cause headaches or nausea.

It’s not the usual thing anyway – it’s also considered a rare side effect of Asian spice.

3. Ability to temporarily stain skin and nails

The seasoning’s own intense yellow coloration makes it used as a natural dye. For this reason, fresh turmeric can stain your nails or the skin of your hands.

It is not worrisome, since the coloration is temporary and disappears with a simple wash.

4. It can affect the gallbladder

In large quantities, turmeric is known to cause some gallbladder problems in a small number of people, especially those with pre-existing problems.


A study in the Asia Pacific Journal of Nutrition showed that large amounts of turmeric can cause the gallbladder to contract, causing it to function improperly.

Furthermore, taking large doses of turmeric supplements can significantly increase urinary oxalate levels, increasing the risk of kidney stone formation.

5. Negative drug interaction

According to MedicineNet, turmeric can negatively interact with medications including blood thinners, antidepressants, antibiotics, antihistamines, heart medications, and chemotherapy treatments.

It can also interfere with diabetes drugs and cause dangerously low blood sugar levels.

6. It hinders the absorption of iron

The Spanish Agency for Food Safety and Nutrition (AESAN) advises that those under 18 years of age, pregnant women, and infants do not consume supplements with curcumin, the main active compound in turmeric.

From the body, they warn that it prevents the correct absorption of iron, in addition to the fact that the substance and its metabolites are transferred to the baby during the lactation period.


If you suffer from gastrointestinal disorders or kidney stones, you better consult with your doctor about the consumption of these supplements.

7. Causes low blood pressure

One of the healthy benefits of turmeric is precisely its regulating effect on blood pressure levels, but it is noted that taking high doses can result in blood pressure values that are too low, especially if combined with medical treatment.

8. Slow blood clotting

Since turmeric can slow blood clotting, its use is not recommended before or after surgery.

It is important to stop consuming it at least 2 weeks before a scheduled surgery.


9. Causes allergy

Those who have a known allergy to turmeric should not only avoid its consumption, they should also avoid coming into contact with it.

Curcumin can be a contact allergen; there are records of several people who have experienced dermatitis and urticaria due to contact with the spice.


Because turmeric and ginger belong to the same family, a person allergic to ginger is likely to be allergic to turmeric as well.

10. Reduce testosterone levels

It has been observed that when turmeric is taken orally (in capsules), it can lower testosterone levels and affect sperm motility. This is believed to reduce fertility in men.

Turmeric during pregnancy and lactation

As a precautionary principle, the European Medicines Agency recommends not to take turmeric during pregnancy or breastfeeding, except for food use. So there is no problem in putting a little turmeric in the food, but no cure.

Why? Because turmeric is used to treat missed periods and to help eliminate stagnant blood, moreover, in large amounts, it could stimulate contractions of the uterus.

Drug minteractions


Turmeric has anticoagulant properties, so its consumption, food and therapy, associated with anticoagulant or antiplatelet treatment, must be done with the informed advice of a doctor.

Indeed, the anticoagulant effects of turmeric will increase the thinning effects of drugs, which can have serious consequences (bleeding, haemorrhaging, bruising, etc.).


Studies have shown that turmeric may be as effective as atorvastatin, a blood thinner prescribed for its cholesterol-lowering effect.

Among the most common anticoagulant and antiplatelet drugs are aspirin (acetylsalicylic acid), clopidogrel (Plavix), dipyridamole (Persantine), AVK (anti-vitamin K), ticlopidine (Ticlid), warfarin (Coumadin) ), enoxaparin (Lovenox), heparin, etc.

Be careful, it is not only drugs that can be anticoagulants, some plants or spices can also have the same properties, among the most common: garlic, ginger, ginkgo, ginseng, tonka beans, etc.


Antacids are used to decrease stomach acidity, and less often, to heal peptic ulcers.

Turmeric may inhibit the action of antacids and cause some side effects such as bloating, gas, chest pain, nausea, and stomach cramps. The combination could even have the opposite effects of antacids, that is to say, increase acid secretion.

This is especially the case in people who suffer from gastroesophageal reflux disease.


The most common antacids are cimetidine (Tagamet), famotidine (Pepcid), ranitidine (Zantac), Raniplex, Nizaxi, Omeprazole, Maalox, Rocgel, Xolaam, etc.


Turmeric has anti-diabetic properties, so by combining the spice with taking anti-diabetic drugs, their effects are increased, and this can lead to side effects such as hypoglycemia, excessive sweating, tremors, visual disturbances, dizziness, anxiety, etc.

Among the most common antidiabetics are biguanides, sulfonylureas, meglitinides, thiazolidinediones, DPP-4 inhibitors, SGLT2 inhibitors, alpha-glucosidase inhibitors, bile acid sequestrants. , etc.

Anti-inflammatory drugs

Among all the properties of turmeric, we find its anti-inflammatory virtues, which is also often why it is consumed, so if you take anti-inflammatory drugs, then it can cause an overdose and cause certain undesirable effects.

Indeed, turmeric would be as effective as paracetamol and non-steroidal anti-inflammatory drugs, to relieve any type of inflammation, especially for osteoarthritis, ulcerative colitis, etc.

However, there are studies, including an Italian study, which showed that the combination of turmeric with a non-steroidal anti-inflammatory treatment, allowed faster healing. However, if you fall into this category, ask your doctor for advice before taking turmeric.


To conclude, it is always important to remember that just because a product is natural, it doesn’t mean you can do anything.

The effects of spices are very real and effective, which is why you must take precautions and inform yourself before embarking on a cure.

Remember that food use, except in the event of drug interaction or proven contraindication, does not pose a problem.

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