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How Does Pre-Workout Affect High Blood Pressure?

Last updated: June 20, 2022

People who lift weights and workout are always looking for ways to give themselves an edge. This often includes taking pre-workout supplements. But what many people don't know is that these supplements can actually affect blood pressure in different ways.

In this blog post, we will discuss how pre-workouts can impact blood pressure, as well as the best types of pre-workouts to regulate blood pressure. We will also discuss any dangers to watch out for when taking pre-workouts.

How Do Pre-workout Affect Blood Pressure?

Not all, but a lot of pre-workouts include some kind of stimulant in order to increase your energy levels while you're working out. This could be anything from caffeine to more powerful compounds like DMAA.

These stimulants work by narrowing your blood vessels and increasing your heart rate. For people with healthy blood pressure, this isn't usually a problem. In fact, it can even help improve their workout performance. However, for people who already have high blood pressure, these stimulants can cause their blood pressure to spike.

This is why it's so important for people with high blood pressure to be careful when choosing a pre-workout supplement. Some of the best pre-workouts for regulating blood pressure are ones that don't include any stimulants at all.

What Ingredients Affect Blood Pressure?

In order to protect yourself when taking pre-workouts, it's important to know which ingredients can cause your blood pressure to rise. Here is a list of some of the most common stimulants found in pre-workouts that can affect blood pressure.


We all know caffeine. It's the most commonly consumed psychoactive drug in the world and it's also one of the main ingredients in pre-workouts. Caffeine works by stimulating the nervous system, which causes a temporary increase in blood pressure.

Pre-workouts aren't the same as having a nice cup of coffee in the morning. In fact, you'll get about 3 or 4 times as much caffeine in your pre-workout as you would with one cup of joe.

The maximum recommended consumption of caffeine is 400mg and one serving of a pre-workout can hit you with 350mg.


Nitrosigine has been shown to improve muscle fatigue after your workouts and it's often used as a vasodilator. A vasodilator is a substance that widens blood vessels, which can cause a drop in blood pressure.

It's thought that nitrosigine can help improve blood flow and oxygen to your muscles, which can give you a better workout.

The reason you need to watch out for nitrosigine is that it isn't even considered a stimulant so it's added to non-stim and low stim pre-workouts.

You can always give a pre-workout a try if it has nitrosigine in it, but be sure to monitor your blood pressure before and after your workout.


DMAE is short for dimethylaminoethanol and it's a common ingredient in pre-workouts. It's often used as a cognitive enhancer because it's thought to improve focus and vigilance.

DMAE works by inhibiting the breakdown of acetylcholine in the brain. Acetylcholine is a neurotransmitter that's responsible for focus, learning, and memory.

DMAE has also been shown to have vasodilating properties, which means it can widen blood vessels and cause a drop in blood pressure.

The problem with DMAE is that it can have some serious side effects like anxiety, insomnia, and headaches.

It's important to start with a low dose of DMAE if you've never taken it before and to be aware of how it makes you feel. If you start to experience any negative side effects, stop taking your pre-workout immediately.


Also known as bitter orange, synephrine is a common ingredient in pre-workouts and fat burners. It's often used as a stimulant and it's thought to have thermogenic properties, which means it can help you burn fat.

Synephrine works by stimulating the sympathetic nervous system, which causes a drop in blood pressure.

The reason that synephrine has gained such popularity is because of the ban on ephedrine for weight loss.

The heart rate will increase after a couple of hours of consumption and it also has some other compounds that can increase your heart rate and your blood pressure.


Taurine is another compound with vasodilation properties and is used a ton in pre-workouts. It's an amino acid that's thought to help improve blood flow and decrease fatigue.

Taurine is often used in conjunction with caffeine because it can help offset some of the side effects of caffeine like anxiety and jitters.

The problem with taurine is that it can cause a drop in blood pressure, which can be dangerous if you already have low blood pressure.

If you have any medical conditions that affect your blood pressure, it's important to talk to your doctor before taking a pre-workout with taurine in it.

Arginine and L-citrulline

You'll usually see these two ingredients together in a pre-workout and for good reason. They're both amino acids that are thought to provide more ergogenic support and can even help you recover faster from exercises.

The only problem is that arginine has been shown to lower blood pressure because it's the precursor to nitric oxide.

L-citrulline and L-arginine act together to improve your exercises but the problem is they lower blood pressure, making it dangerous to take for people who are already at risk.


What are the risks for pre workout high blood pressure problems?

People who suffer from blood pressure problems who take pre-workouts that include stimulants could be at risk for a heart attack or stroke.

What are the best low caffeine pre workouts?

Genius Pre Workout Powder and PumpSurge Stim Free Workout both contain no caffeine in their formulas.

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