What You Need to Know: Black Seed Oil Side Effects

black seed oil side effects

Black seed oil comes from the seeds of the ‘Nigella Sativa‘ and has low to no side effects for the majority of its users. Since it affects the immune system directly, a proper precaution to take would be to consult your physician before starting to take it daily.

Recipe bonus! Click here to get our free & easy 7 black seed oil recipes!

What are Black Seed Oil Side Effects?

Black seed oil side effects are close to none compared to other supplements one might take. This low level of side effects is mainly because black seed oil is extracted from naturally grown seeds that come from (Nigella Sativa) the earth.

This leaves out any chances for artificial ingredients being added to alter the balance of this nutrient rich herb.

black seed oil is extracted from naturally grown seeds that come from (Nigella Sativa) Click To Tweet

black seed oil side effects


Black seed oil pregnancy concerns are regularly searched on the internet, and evidence and facts show that black seed oil can be taken throughout the pregnancy without issues or complications.

Black seed oil and pregnancy can provide benefit to the mother and the baby in the womb, due to the positive effects black seed oil have in cognitive development.

Due to its effects on the immune system and throughout the body, one must take into consideration the dosage of black seed oil.Taking black seed oil daily has shown to improve majority of conditions and ailments . Proper dosage is based upon one’s status and the length of time needed to be cured.

Good scientific evidence suggests that black seeds may be useful in the treatment of lung disorders, with more studies suggestion black seed oil to be effective in the treatment of other conditions such as allergies, diabetes, and high blood pressure.black seed oil side effects

In short, there are no known side effects of black seed oil; the most important thing to consider is the amount taken (which shouldn’t be more than one tablespoon daily).

Also read: Green Coffee Bean Extract Benefits

Below is a list of dosage based upon the condition and treatment:

(Dosage suggestions are for people 12 years and older)

Acne: ½ teaspoon of black seed oil and inhalation of vapor of hot water.

(Most) Addictions: 500 milligrams of black seeds with black seed oil three times daily for up to 12 days.

Allergies: 40-80 milligrams per kilo of black seed oil three times daily for up to 8 weeks.

Anti-fungal: Wipe affected area with cider vinegar, followed by black seed oil three times daily for eight weeks.

Anxiety: ½ teaspoon of black seed oil with herbal tea.

Bruises: 1 teaspoon of black seed oil with one teaspoon of olive oil three times daily.

Colds: 1 teaspoon of black seed oil three times daily.

Arthritis: 1 teaspoon of black seed oil with one teaspoon of olive oil three times daily.

Cough: Rub your chest and back with black seed oil and take one teaspoon three times daily.

Diabetes: 2.5 milliliters of black seed oil twice a day for six weeks, in addition to existing methods prescribed by your physician.

Colic: Massage warmed black seed oil on the abdomen.

Diarrhea: 1 teaspoon of black seed oil with 1 cup of yogurt twice daily.

Earache: ½ teaspoon of black seed oil mixed with ½ teaspoon of olive oil warmed and dripped into the affected ear. Leave in place with a cloth.

Headache: ½ teaspoon of black seed oil three times daily, taken with a meal. Also, rub black seed oil on the sides of the head and near the ears.

Hair loss: Stroke lemon throughout the scalp and then Apply ½-1 teaspoon of black seed oil and leave in for 15-20 minutes.

High blood lipids: Take 2.5 milliliters of black seed oil twice daily for six weeks with other lipid-lowering agents.

High blood pressure: Take 1-2 teaspoons of black seed oil and add it to a hot drink mixed with two cloves of garlic before breakfast.

Muscle soreness: 1 teaspoon of black seed oil and one teaspoon of olive oil three times daily.

Asthma: Take one teaspoon of black seed oil with boiled vaporized inhalations of black seed oil.

Sinusitis and Acute sinusitis: Take one teaspoon of black seed oil daily. Acute- Take one teaspoon of black seed oil three times daily.

Stomach Disorders: Drink mint tea with lemon and a teaspoon of black seed oil three times daily.

Allergies: If you’re sensitive or allergic to black seed oil or members of the Ranunculaceae family. Allergic contact dermatitis has been reported.

Pregnancy and Breastfeeding: Due to its aiding in menstrual cycles, mothers are cautioned not to take a high dosage of black seed oil during conception.

Also Read: Benefits of Probiotics


We found that black seed oil is useful for a lot of different ailments and conditions. With proper dieting and effective dosages, the majority of users found relief from the conditions they were suffering from.

Although side effects are low to non-existent, always make sure your system can tolerate and consume a new supplement.black seed oil side effects

It’s upon you to always double check with your physician when starting any supplement intake and dieting.

Share your thoughts below: What side effects have you experienced while taking black seed oil?


85 thoughts on “What You Need to Know: Black Seed Oil Side Effects

  1. Diana S says:

    Hello I heard about the great things this oil does tried it starting with 1/2 teaspoon with food. Had extreme diareah. I quickly cut back to just a few drops. After a couple of days started feeling week then stopped all internal use. Wanted to correct diabetic symptoms. Am taking 1000 milagrams a day of chromium. Off med for nearly 2 years. Last A1C was 6. Is there any known interaction with chromium? Thanks

    • Vasilios says:

      Yeah it’s ok to take blackseed oil with blood pressure mess . Try take them far apart like one in the morning and the other at night that’s what I do and just take a teaspoon full and wash down with water before bed and u will sleep well. . If u start to feel dizzy go to ur doctor coz u mite have to reduce blood pressure tablets coz the oil helps lower ur pressure . I’ve been taking both for months now no issues at all

      • Michelle says:

        but I thought with continued use, the black seed oil is the replacement for blood pressure meds, and diabetic meds because it lowers the blood pressure and helps regulate insulin?

        • Sylvia says:

          But how long have you been taking the black seed tablets ? And how high was your blood pressure when you started taking the tablets ?

  2. Marilyn Chappell says:

    I took black seed oil before called Amazing herbs with no side effect, but this time I bought Kalonji oil which i believe is the same thing, from an India store. This one i notice cause me to be dizzy. I cut back on the dosage, but i am wondering if it make a difference on the brand or where the black seed came from. Also this one says 100 % pure oil. The Amazing herb one says Cold pressed oil maybe thats the difference. Does the oil need refrigeration.

    • Vasilios says:

      It’s dropping ur blood pressure . That can. E a good thing if it’s too high . Go to ur fix get pressure checked .

      • Otuije Maryjane says:

        Please what is the recommended dosage of black seed oli and the grounded seed fro an elderly woman that has dimensial and Alziamia. MaryJane

    • Laura says:

      There is a difference in cold pressed and 100% pure. On the positive side, the pure version, you do not have to use as much.

  3. Bo says:

    My father is suffering from congestive heart failure and his appetite is very low. He is not eating much. He has lost lots of weight.

  4. Jody Roper says:

    Just took my first Tsp. Of black seed oil and it made me feel like my heart was racing and now I feel strange. I know there are no known side effects, not sure if this is psychological, anyone else feel strange after first starting? I have had the blank seed oil pills with no problems but this was a virgin black seed oil liquid.

    • Garrick says:

      I had the same feeling of racing pulse and indigestion for more than a day with the cold pressed black seed oil-it was the first time I’d taken it (one teaspoon)

    • Vasilios says:

      Do t worry it just gives u a bit of a kick wen u take it coz it’s putting oxygen into your blood and it’s just great for circulation so don’t worry I get same thing doesn’t last long . If ur worried then see ur fix but they don’t know about the great benefits of this oil

    • Michelle says:

      I’ve had no issues with starting mine. You have to be careful where you get the black seed oil from. I was told to make sure I purchased from an authentic Indian store. Not the GNC’s and supplement stores because they still put some extra stuff in it. Even when buying online be careful

    • Matt says:

      I didn’t experience that when started taking it. I do know that a increased heart rate after ingestion can be food allergies or sensitivity.

    • Shalona King says:

      Hey Francis Perera, i was just asking my uncle if the black seed oil can help with heart burn. If im reading this right did you say it gave you heartburn?

      • Eve says:

        This oil has worked wonders in my life and my moms, slowly curing her of arthritis , however it can cause severe heart burn on some days smh

  5. Zulfa Dominick says:

    I also.started using the cold pressed oil and started getting dizzy spells and just feeling weird, like palpitations I’m not sure how to describe it. Like blood pressure is all over. The capsules had no side effects though. Will try reducing to less than I tsp of oil n see if it still happens.

    • Adriel says:

      I felt the same way. I took less than a teaspoon and still got the same bad feeling. The only difference was that it took longer for me to start feeling bad.

  6. Chakra says:

    I have started using this. 5ml of this oil + 5 ml of Olive oil. First two days, only some burping, no other issues. Now getting a slightly sore throat. Thinking of reducingthe dosage.

  7. Randall Edney says:

    Best thing I have ever taken and Im not the pill popling type. All together feel better. More energized and even the libido has gotten stronger at 42.

  8. David Brian says:

    I’m taking “Amazing Herbs Black Seed 100% pure cold-pressed black cumin seed oil” for the first time. (1 tablespoon by mouth) with an apple, mixed nuts and elderberry tea. At first the taste is bland but Then quickly changed to an oily bitter taste. #blackseedoil

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