4. Individuals With Kidney Stones (Especially Oxalate Stones)
Black sesame contains a moderate level of oxalates — compounds that may contribute to kidney stone formation.
For people who already have kidney stones or are at risk:
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Oxalates can worsen the formation of calcium oxalate stones
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They may increase kidney discomfort
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They can interfere with mineral balance
Anyone with a history of kidney stones should consult their doctor before including black sesame in their diet.
5. People With Sesame Seed Allergies
Sesame allergy is more common than many people realize, and reactions can be severe.
Symptoms may include:
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Hives or swelling
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Itching in the mouth or throat
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Nausea or vomiting
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Difficulty breathing
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Anaphylaxis (a life-threatening allergic reaction)
Those with known sesame allergies should avoid black sesame entirely, including sesame oil, tahini, and foods seasoned with sesame.
6. Pregnant Women (In Certain Cases)
Black sesame has a warming, stimulating effect on the body according to traditional medicine. While small amounts are generally safe, excessive consumption may not be suitable during early pregnancy.
Possible risks:
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It may stimulate uterine activity
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It could increase body heat, causing discomfort for sensitive pregnancies
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It may irritate digestion, leading to nausea or diarrhea
Pregnant women should consume black sesame in moderation and consult their healthcare provider if uncertain.
7. Individuals With Bleeding Disorders or Taking Blood-Thinning Medication
Black sesame seeds contain vitamin E and certain plant compounds that naturally thin the blood.
This can be problematic if you:
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Have a bleeding disorder
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Are preparing for surgery
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Take anticoagulants such as Warfarin, Aspirin, or Plavix
Excessive consumption may increase the risk of bleeding or bruising.

Conclusion
Eating just one spoonful of black sesame seeds each day can deliver remarkable benefits for your body. From stronger hair and bones to improved digestion, heart health, and glowing skin, black sesame seeds are tiny but incredibly powerful.
This is one of the simplest wellness habits you can incorporate into your daily routine – nourishing your body naturally, gently, and effectively.