People with diabetes and high blood pressure are advised to eat as many sulfur-containing vegetables as possible, such as cabbage, broccoli, cucumber, celery, and lemon, either cooked or as juice.
Olive leaf herbal teas are also beneficial, as they lower blood pressure and blood sugar.
Finally, it is also recommended to consume black seed.
What the science says: diabetes and blood sugar, high blood pressure
Here is what published research says about the remedies mentioned above, for context only — these studies look at material causes, while healing belongs to Allah.
Diabetes and blood sugar
Diet (low glycemic index, fiber, fewer fast-acting sugars) is the foundation of type 2 diabetes treatment (BMJ, 2021); several plants from tradition — cinnamon, fenugreek, black seed, turmeric, olive leaf — have a blood-sugar-lowering effect confirmed by meta-analyses (Diabetes Metab Syndr, 2023) (Nutrients, 2024), and camel milk is being studied in this context. Precaution: these remedies add to treatment and can cause hypoglycemia if combined with it — monitor blood sugar and never change an insulin dose without the doctor.
High blood pressure
Garlic (J Nutr, 2016), magnesium (Hypertension, 2025), olive leaf (Phytomedicine, 2011), and pomegranate juice (Phytother Res, 2023) modestly lower blood pressure according to meta-analyses; reducing salt, maintaining a healthy weight, walking, and sleep remain the main levers. Precaution: these remedies potentiate antihypertensive treatments — monitor your blood pressure at home and inform your doctor; never stop a treatment on your own.