Olive leaf is mostly used as an anti-viral. There are probably better herbs out there for high blood pressure. Herb Pharm makes a good Linden Mistletoe formula. The most commonly used herb for blood pressure is hawthorn, but formulas work best. As for olive leaf, and other herbs in the above formula, they might be diuretic as well, so you really should check this with somebody with more expertise than we have since diuretics will obviously affect the kidneys, though not necessarily negatively. Better to be safe. I assume you're also on medications, so you'll want to check contraindications as well. Since olive leaf is an "anti,) meaning it kills viruses and some bacteria, it isn't usually recommended to be taken on a regular basis. I'd talk to a naturopath about this, or maybe call a good herbal company or even perhaps look at Prescription for Natural Healing, which does contain a contraindications section.
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