MENU
ConsumerLab.com Answers

Avoid These Supplements If You Have Low Blood Pressure

Question:
I have low blood pressure. Are there any supplements I should avoid?

Answer:
Certain supplements can cause decreases in blood pressure and should be used with caution if you already have low blood pressure. These are melatonin, arginine and large doses of magnesium. Calcium may also cause a very small decrease in blood pressure. Preliminary studies have found black cohosh may lower blood pressure in animals, but it is unclear whether it has this effect in people.

There are also a number of supplements that have been shown to lower blood pressure in people with hypertension (high blood pressure). These include fish oil and omega-3 fatty acids, garlic, potassium, flaxseed, certain strains of probiotics, and green coffee bean extract.  While much of the evidence for these is focused on people with high blood pressure, they could potentially lower blood pressure in others. So, if you take one of these supplements and find your low blood pressure becomes even lower, try eliminating the supplement and see if your blood pressure improves.

Note that sexual enhancement supplements with undeclared drugs, such as sildenafil (Viagra) or tadalafil (Cialis) may also lower blood pressure (see the list of Recalls and Warnings for supplements found to contain these drugs).

For more about using these supplements, including the evidence, potential side effects, and our tests of products, use on the links above.

Become a Member
INSTANT ACCESS TO REVIEW OVER 1000 PRODUCTS!


Learn more about supplements and blood pressure:



Can beetroot juice or supplements help lower my blood pressure? >>

Which supplements can help to lower blood pressure? >>

Does Carditone work to lower blood pressure?  >>

Is Theracurmin better absorbed than other curcumin formulas - and can it really help lower my blood pressure? >>

Rhodiola and ashwagandha are both promoted to help with stress and anxiety. Is it safe to take them at the same time? >>



See other recent and popular questions >>
Comments
Add Comment

Lemoine326   December 17, 2014
What is considered large doses of magnesium?
Lea R

ConsumerLab.com   January 1, 2015
Hi Lea - The Tolerable Upper Intake Level for magnesium for adults is 350 mg daily, although doses from 200 mg to 600 mg have been used when taken for a specific purpose.
You can read more about this in the Magnesium Supplements Review: https://www.consumerlab.com/reviews/magnesium-supplement-review/magnesium/#using

This CL Answer initially posted on 12/17/2014. Last updated 8/7/2017.

Add Comment...

Share your thoughts and comments about this topic in the space below. Please abide by the following rules:
  • If you make a statement of fact, such as whether a type of treatment does or does not work, state your basis -- such as personal experience or a published study.
  • If you make a positive or negative comment about a product, note whether or not you have a financial interest in the product or in a competing product.
  • Please be respectful in your tone.
  • Please do not submit any type of HTML markup or scripting as it will not be accepted.
For your privacy, only your first name (from your account) followed by a random number will appear with your comment. Your last name and email address will not be displayed.
Comment:

Add Comment...

Share your thoughts and comments about this topic in the space below. Please abide by the following rules:
  • If you make a statement of fact, such as whether a type of treatment does or does not work, state your basis -- such as personal experience or a published study.
  • If you make a positive or negative comment about a product, note whether or not you have a financial interest in the product or in a competing product.
  • Please be respectful in your tone.
  • Please do not submit any type of HTML markup or scripting as it will not be accepted.
For your privacy, only your first name (from your account) followed by a random number will appear with your comment. Your last name and email address will not be displayed.
Comment:

Edit Comment...

You can modify your comment below. Please be aware the comment will have to approve the changes before they will be shown:
Comment:
THANK YOU FOR SUCCESSFULLY UPDATING YOUR EMAIL ADDRESS!

PLEASE BE AWARE that the email address is now your sign-in email address, replacing any previous username. Your password has not changed.

If you do not receive our newsletter at this new address within one week, please contact support@consumerlab.com or call us during business hours at 914-722-9149 ext. 2#

ConsumerLab.com Customer Support

THANK YOU FOR SUCCESSFULLY RESUBSCRIBING TO THE NEWSLETTER!

If you do not receive our newsletter within one week, please contact support@consumerlab.com or call us during business hours at 914-722-9149 ext. 2#

ConsumerLab.com Customer Support