Ask Dr. Rowena

Photo Dr. Rowena Your questions about high blood pressure answered by a board certified doctor. Browse the categories in the left menu.

Why Dr. Rowena doesn’t recommend supplements

Q: Why do you not recommend supplements? Not even a good multivitamin/mineral supplement?

A: I don’t recommend supplements because there is a very real possibility of harm outweighing any benefit. Why waste your money on something not proven to be beneficial and possibly harmful?...

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The dangers of taking too much zinc.

Q: I take 50 mg of zinc daily. Is it OK, or, I’m taking zinc in excess? Does it cause zinc toxicity, when taken in excess?

A: You are taking too much zinc. No more than 40 mg a day is recommended. Too much zinc can...

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Using black cohosh to lower blood pressure.

Q: A friend of mine suggested black cohosh to help relieve menopause symptoms. I’ve done further investigation and see that it could also possibly have a blood pressure lowering effect. Is this true?

A: For many years, the herb Black Cohosh has been looked at as...

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Natural supplements and bp.

Q: Can B12 and Omega 3 &6 (Fish Oil) Help to lower Blood Pressure?

A: Fish oil has been shown to lower blood pressure. Vitamin B12 may help lower the risk of heart disease. However, you should discuss with your doctor the need for supplementation. Adequate...

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The benefits of ganoderma.

Q: Have you ever heard of a Chinese herb called ganoderma and what can you tell me about it?

A: Ganoderma is a type of fungi that breaks down wood.  It is found on tree roots.  It is also known as reishi.  Some non-traditional medical uses...

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Magnesium and heart health.

Q: What does magnesium do for heart health?

A: Magnesium is thought to help protect against cardiovascular disease.  Good dietary sources are beans, peas, and nuts.  Thiazide diuretics are commonly used to treat high blood pressure.  This type of drug can lower levels of magnesium in...

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Difference between inorganic nitrate and sodium nitrate for lowering blood pressure.

Q: I read the article on beetroot juice and inorganic nitrate that lowers blood pressure. I’ve also read that sodium nitrate is unhealthy. What is the difference between inorganic nitrate and sodium nitrate?

A: In the study that looked at the blood pressure lowering...

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Can supplements cause palpitations?

Q:  Can taking lots of vitamins/other supplements cause palpitations?

A: It certainly is possible for supplements to cause palpitations.  Some supplements are made from plants that contain ingredients that stimulate the heart.  A good source for learning about side effects of common herbs found in supplements...

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Why Dr. Rowena doesn’t recommend supplements

Q: Why do you not recommend supplements? Not even a good multivitamin/mineral supplement?

A: I don’t recommend supplements because there is a very real possibility of harm outweighing any benefit. Why waste your money on something not proven to be beneficial and possibly harmful? Recent medical...

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Pycnogenol supplement

Q: I would like to start using a vitamin called pycnogenol. I am currently on beta blocker meds. I have researched that pycnogenol can lower hypertension; I have dips and highs throughout the day with BP. What are your thoughts?

A: I...

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