When used in small amounts for cooking, black seed oil is likely safe for most people.

However, there’s limited research on the long-term safety of consuming larger doses for therapeutic purposes.

In general, short-term use of 3 months or less hasn’t been linked to any serious side effects. However, in one study, taking 1 teaspoon (5 mL) of black seed oil per day for 8 weeks did cause nausea and bloating in some participants (2Trusted Source, 48Trusted Source).

One potential concern is that black seed oil may interact with medications that are processed through the cytochrome P450 pathway. Common medications that could be affected include warfarin (Coumadin) and beta-blockers like metoprolol (Lopressor) (49Trusted Source, 50Trusted Source).

There’s also concern that taking too much black seed oil could harm your kidneys. In one reported case, a woman with type 2 diabetes was hospitalized for acute kidney failure after taking 2–2.5 grams of black seed capsules daily for 6 days (51Trusted Source).

However, other studies haven’t shown negative effects on kidney health. In fact, some studies have even suggested that black seed oil has a protective effect on kidney function (2Trusted Source, 52Trusted Source, 53Trusted Source).

If you have any current kidney problems, it’s recommended to talk with your medical provider before taking black seed oil.

Finally, due to limited research, women who are pregnant or breastfeeding should avoid using black seed oil, except for in small amounts as a flavoring for food.

Overall, more research is needed on the safety of black seed oil in humans, especially for long-term use.

Yes! Our sea moss is 100% vegan, kosher and gluten-free with no added chemicals.

While black seed oil may have some benefits for health, it doesn’t replace any current medications that you may already be taking.

Additionally, there’s currently insufficient evidence to establish a recommended dosage. As a result, it’s important to talk with your healthcare provider before using black seed oil.

Depending on the intended use, black seed oil amounts that have been studied vary greatly.

For example, in people with asthma, taking 1 mg of black seed oil capsules daily for 4 months was found to be safe and effective as a supplementary treatment (16Trusted Source).

On the other hand, in weight loss and reducing blood sugar levels, studies have shown higher doses of 2–3 grams of black seed oil per day for 8–12 weeks to be most effective (19, 21Trusted Source, 23Trusted Source, 24Trusted Source).

As the dosage can vary by use, it’s recommended to first talk with your healthcare provider for personalized dosing recommendations.

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