Skip to Content

Can You Take Pre Workout Twice A Day? (Is It Safe?)

I may receive a commission for purchases made through product links on this page, but I always stand by my opinions and endorsements!

Pre workout offers a ton of benefits, including a better pump, improved focus, and improved performance.

So, the more you take of it, the more benefits you experience, right?

Can You Take Pre Workout Twice A Day?

According to the FDA, the safe upper limit of caffeine intake for most healthy people is 400mg per day. So, if you are taking pre workout twice a day, you may be consuming more than the safe upper limit of caffeine. Always consult a medical doctor before taking a new supplement, such as pre workout.

In this article, we cover the benefits and drawbacks of taking pre workout twice in a day, as well as the best way to go about it if you must do so. Let’s get started.

Benefits Of Taking Pre Workout Twice In A Day

More Fat Burning Potential

Many pre workouts out there are loaded with caffeine.

And for good reason too – it helps you focus, ‘gives’ you more energy, and even helps with fat loss.

In fact, a review of 12 studies found that every doubling of caffeine intake boosted fat oxidation by 28%!

So by doing some quick maths, if you take pre workout twice in a day, you’re essentially doubling your caffeine intake.

Based off the review above, this should result in more fat loss and a leaner you.

More Productivity

Some pre workouts have added nootropics to help you focus and improve the mental side of your performance.

For example, Genius Pre Workout includes an adaptogenic herb called Rhodiola.

A study of 56 night shift workers compared the effects of Rhodiola and a placebo on their performance.

For 2 weeks, the night shift workers took either 170mg of Rhodiola or a placebo daily.

Interestingly, those who took Rhodiola had less mental fatigue and improved performance than those who took the placebo.

Another example is Hooligan Pre Workout which includes Lion’s Mane mushrooms.

In one study, 30 adults took either 3g of Lion’s Mane extract or a placebo daily for 16 weeks.

After just 8 weeks, those who consumed the Lion’s Mane extract had improved cognitive function.

So by taking pre workout twice in a day, you’ll have much better focus which will help you get more stuff done.

(Related Reading: Is Pre Workout Good For Studying?)

Drawbacks Of Taking Pre Workout Twice In A Day

You May Build Up A Tolerance Quicker

The caffeine in pre workout is a double-edged sword.

While it has its many uses, it’s also a drug.

Now before you panic, I’m not saying that it’s in the same bracket as meth, heroin or cocaine.

But like all drugs, you can build a tolerance to caffeine.

In other words, the more you use caffeine, the more your body gets used to its effects.

This means that you need to take even more of it to feel the same buzz.

(This is why I recommend cycling pre workout!)

So by taking pre workout 2 times in a day, you’ll build a tolerance to caffeine much quicker than you normally would.

It’s Potentially Dangerous

Some pre workouts out there, like USN 3XT, contain a whopping 400mg of caffeine per serving.

(To give you some perspective, the average cup of coffee contains around 100mg of caffeine, so yes, some pre workouts are 4x stronger than coffee!)

According to the FDA, up to 400mg of caffeine in a day appears to be safe for most people.

So if you were to take a pre workout like USN 3XT two times in a day, you would be taking twice the safe limit!

It’s also worth mentioning that some people are more sensitive to caffeine than others.

In other words, even 400mg of caffeine in a day may be too much for some people.

If you do take too much caffeine, you may encounter some nasty side effects, including:

  • Jitters
  • Nausea
  • Anxiety
  • Insomnia
  • Headaches

It’s More Expensive

Some of the premium pre workouts out there, like C4, cost serious dough.

We’re talking around $2.50 for a single scoop.

So if you were to work out 4 times a week, and took C4 twice per day on the days you worked out…

You would end up spending $80 a month just on pre workout!

It Can Be Harder To Hit Your Macros

When I was intermittent fasting, I’d drink a ton of coffee.

(Well, I still drink a ton now, but not as much as I used too!)

The reason being the caffeine helped curb my appetite which made the fasting much easier.

(Believe it or not, it’s easier to go through long periods of time without food if you’re not hungry in the first place.)

But if you’re on a bulking diet, this can work against you for the opposite reason:

It’s harder to stuff your face with 3,000 calories a day if you have no appetite in the first place!

So if you were to take a standard pre workout twice in a day, your caffeine intake would be even higher which would kill your appetite.

How To Take Pre Workout Twice In A Day

Use A Caffeine-Free Pre Workout

Since a lot of drawbacks come from consuming too much caffeine, an easy solution if you want to take 2 lots of pre workout in a day is to opt for a caffeine-free pre workout.

There are many awesome ones out there, with my favorite being Genius Pre Workout, as pictured below.

Click to see on Amazon

Not only is it caffeine-free, but it includes no artificial sweeteners to make it healthier, and it has added Rhodiola to help you focus.

I also love that Genius products are 3rd party tested for purity and potency, which shows that you can trust their labels.

Check price and read more reviews of Genius Pre Workout Powder on Amazon.

Spread Your Doses

If you want to get the most out of doubling your pre workout intake, it’s best to spread out the doses over the course of the day.

If you don’t, it’s possible you’ll have a more intense experience which could result in you crashing once it’s worn off.

Whereas if you spread the doses out, you’ll have a nice stable level of energy throughout the day.

Avoid Taking Pre Workout In The Evening

Caffeinated pre workouts are a bad idea to take at night, as the caffeine can seriously screw up your sleep.

In fact, even taking caffeine 6 hours before going to sleep can disturb your sleep quality! (Source)

What about caffeine-free pre workout?

Well, most caffeine-free pre workouts use a nootropic to help improve focus and alertness, so even then, it’s probably best to avoid.

Can You Take 2 Scoops Of Pre Workout In One Shake?

The only time I’d ever take 2 scoops of pre workout in a shake is if the serving size recommended by the product manufacturer is 2 scoops per serving.

If not? Then 100% no.

What Happens If You Take Too Much Pre Workout?

If your pre workout is caffeinated, then you’ll likely feel anxious, irritable, and nauseous.

You may also get itchy skin due to the high amounts of Beta Alanine. It’s generally nothing to worry about but can be quite annoying.

Can You Take C4 Pre Workout Twice In A Day?

As one of the market leaders, I’m sure many of you are wondering if you can take C4 2 times in a day.

Since the caffeine amount is moderate, it shouldn’t be too much of an issue as long as you spread the doses over the course of the day, and avoid other forms of caffeine, like coffee.

Can You Take Jym Pre Workout Twice In A Day?

With each serving of Pre Jym providing 300mg of caffeine, it’s not recommended to take it twice in a day.

The only exception would be if you used only half a scoop for a serving instead of a full scoop.

This way, you’re not exceeding the safe caffeine limit.

Can You Take Pre Workout 3 Times In A Day?

For those who are curious, there are no instances where you should take pre workout 3 times in a day.

Not one.

Please don’t consider it.

Conclusion: Is It Ok To Take Pre Workout Twice In A Day?

Weighing up the pros and cons, you probably shouldn’t take pre workout twice in a day.

It’s more expensive, can disrupt your meal plan, and can even be dangerous in some instances.

But if you were to take it two times in a day, I’d make sure that it’s a caffeine-free pre workout.

This should alleviate some of the potential drawbacks.

I hope you’ve found this article useful and look forward to seeing you again soon!

Have a good day.


You might also find these articles interesting…