My research explores the antihypertensive effects of Nigella sativa (black seed) oil in managing high blood pressure. Hypertension is a growing global health concern, often insufficiently controlled by standard medications. Nigella sativa, known for its bioactive compound thymoquinone, possesses antioxidant, anti-inflammatory, and vasodilatory properties, making it a potential natural remedy for blood pressure regulation.

Inclusion Criteria:

• Adults aged 30 to 70 years
• Diagnosed with mild to moderate hypertension (BP ≥140/90 mmHg)
• Willing to participate and provide written informed consent
• Not currently on any herbal or nutritional supplements

Exclusion Criteria:

• History of smoking or alcohol consumption
• Pregnant, postmenopausal, or breastfeeding women
• Use of dietary supplements or medications containing antioxidants, caffeine, estrogen, or steroids
• Individuals engaging in regular vigorous physical exercise
• Those adding extra salt to their meals
• Known allergy to Nigella sativa or black seed oil