A recent study from Japan has revealed that black cumin seed powder can significantly lower bad cholesterol and triglycerides while boosting good cholesterol within eight weeks. The research, published in the journal Food Science & Nutrition, highlights the spice’s potential in combating obesity-related conditions and improving metabolic health.
Black cumin, known as Nigella sativa or black seed, is commonly used in Middle Eastern and Indian cuisines, such as curries and naan. It is also found in various baked goods and spice blends. High-antioxidant black seed oil is often sold as a dietary supplement, used to support immunity, reduce inflammation, and improve digestive health.
A randomized human trial was conducted in which participants consumed 5 grams of black cumin seed powder per day for eight weeks. The study measured changes in cholesterol levels and appetite before and after the supplement intake.
The human trial showed a decrease in triglycerides, LDL cholesterol, and total cholesterol, along with an increase in HDL cholesterol. The findings also indicated a significant improvement in hunger levels, suggesting black cumin’s possible benefits for appetite control.
The researchers concluded that both in vitro and human trials demonstrated black cumin’s anti-adipogenic and lipid-lowering effects. They emphasized the potential of black cumin seed extract in improving lipid metabolism, suggesting it may serve as a promising natural agent for obesity-related conditions, though further investigation is needed.
Theresa Link, a registered dietitian at Virta Health, commented on the findings, noting that while these results are promising, they should be considered as part of a broader approach to metabolic health, rather than a standalone solution. She also referenced a 2021 study showing that black seed oil led to greater weight loss in female participants, who also reported feeling fuller, potentially contributing to their success. However, she cautioned that these studies only lasted eight weeks and that black cumin seed alone isn’t a magic bullet for preventing obesity but could support weight management when combined with a healthy lifestyle.
The spice also contains thymoquinone, a compound rich in antioxidants, which may offer additional health benefits. Long-term studies are needed to confirm these effects and understand how Nigella sativa could integrate into a comprehensive approach to metabolic and cardiovascular health.