Can you take fat burner and pre workout together?

Can you take fat burner and pre workout together?

  • By - PFX Labs
  • 17 August, 2021

Both fat burners and pre workouts can have side effects, mostly due to their combined dose of stimulants. But can you take a fat burner and a pre workout at the same time?

Let’s review what a fat burner is and what a pre workout is, what their effects are and what are the potential benefits of either. And then if combining fat burners and pre workouts can work for you.

Pre Workout Supplements

Some supplements are meant to be taken before a workout, while others are meant to be taken during the workout.

There are many reasons why people might want to take pre-workout supplements such as improving athletic performance and enhancing brain function.

In response to the growing popularity of pre-workout supplements, we have seen many companies come out with newer formulations with new ingredients that supposedly enhance performance in a different way.

Pre workouts are a new trend in fitness and wellness that is gaining traction for its strength and endurance boosting effects. They are also being used to help with weight loss, increased energy, and mental clarity. These are similar effects to fat burners.

Pre workouts have been known to provide a variety of physical benefits that can help improve your overall health. Some of these benefits include an increase in energy levels, reduced muscle fatigue, increased production of endorphins (which can reduce stress), increased heart rate variability, and more.

The science behind pre workouts is still relatively new so it’s hard to say exactly what the long term effects will be on the body.

Common Ingredients in Pre Workouts

Pre workouts typically contain caffeine, taurine, creatine, and beta-alanine. They also often have a variety of vitamins and minerals such as niacin, vitamin B6, vitamin B12, magnesium oxide, calcium carbonate.

There are some specific ingredients that are commonly found in these supplements that may help build muscle strength or increase endurance. These may include:


Caffeine is essential for many people during the day, but it's not just for those who need the jolt of energy. Pre workouts in particular are designed to induce a rush of energy and focus on mental stimulation.

The psychological effects of caffeine can have an impact on your mood, which is why it's often used in pre workouts. It also has a number of health benefits that make it a great addition to your diet.

Many pre workouts contain caffeine as their main ingredient because the stimulant increases alertness and can improve focus by enhancing mental acuity.


L-Theanine, a naturally occurring amino acid, is an amino acid that has shown to increase attention span, improve memory and learning ability as well as reduce stress.

You can find it in green tea leaves. Due to the fact that it is not found in other plants, L-Theanine is often considered to be an exclusive compound of green tea.

L-Theanine has been studied for its potential effect on performance and cognition but more research needs to be completed before any conclusive information can be presented on its effects.


BCAAs have been shown to increase muscle growth and strength by decreasing breakdown of protein.

BCAAs are the “brains” behind the workout since they provide essential amino acids that are used by muscles for building muscle. BCAAs also act as buffer against damage induced by high-intensity training which requires a lot of energy from muscles to be provided to them.

BCAAs, when combined with other ingredients such as caffeine and vitamin B6, can help in providing more energy during intense workouts. These ingredients also help in increasing performance levels during intense workouts.


One supplement which has received attention recently is L-Citrulline.

L-Citrulline improves blood circulation and also boosts athletic performance during exercise, making it a popular ingredient in pre workouts and sports drinks. There are other benefits of L-Citrulline including improved cognitive function and more efficient muscle recovery after exercise.

- DMAE/HMAE (dimethylaminoethanol/hydroxyethylmethane)

DMAE in pre workouts is used to help boost the production of growth hormone and enhance cognitive functions, such as memory.

In addition to its use in pre workouts, DMAE is often found in anti-aging products that are marketed towards men as well.

Fat Burner Supplements

pre workout and fat burner

Fat Burner Supplements are not just for weight loss but they can also help with the process of losing body fat as well. They work by providing an energy boost and a boost to the metabolism.

The effectiveness of a supplement is determined by its ingredients and the dose.

This means that you have to be wary when you buy products online or from other sources because there is no way of knowing what’s in it, so you need to stick to trusted brands to make sure that you don’t end up wasting your money before getting anything out of it.

Common Ingredients in Fat Burners

Most fat burners contain caffeine, green tea extract, and L-carnitine.

In general, they usually include ingredients like green tea extract, caffeine, and other herbal extracts. Cardamom is also a common ingredient in some fat burners because it binds to fat molecules within the body. It also has a thermogenic compound called eugenol that makes the body produce more heat for weight loss and healthy looking skin.

Some fat burners also contain L-carnitine which helps convert unwanted triglycerides into free fatty acids which are then used as energy by the body instead of glucose.

  • Green Tea

Green tea extract is an ingredient commonly found in fat burners that helps increase the rate of metabolization of fats when taken before or during workouts to help the body maximize its calorie burning.

  • Caffeine

Caffeine is one of the most researched and popular ingredients in fat burners. It's been shown to boost metabolism, improve focus, and aid fat loss.

Caffeine is also a known diuretic, which can help people lose water weight. In fact, it's not uncommon for some people to drink an additional cup or two of coffee in the morning just to avoid that unique feeling of dehydration.

  • L-Theanine

A study was conducted by the University of South Carolina, which found that L-Theanine increases the rate of weight loss when combined with caffeine.

L-Theanine is a compound found in green tea and some other plants. It has been shown to have many health benefits ranging from reducing stress and anxiety to improving sleep quality and even supporting cognitive functions like memory, attention, and learning.

L-Theanine is a natural compound found in green tea leaves that has been studied for its potential to promote weight loss via the beneficial effects it has on cognitive performance.

Answered: Can You Take Fat Burners and Pre Workouts Together?

Combining fat burners and pre workouts can lead to amazing results, but then also can cause some negative side effects. It purely depends on the ingredients of the products you have. As a very basic rule, fat burners and pre workouts are safe to combine as long as they have a completely different set of ingredients.

If you find that both contain high levels of caffeine, then it’s probably best to separate the doses out, or favour one over the other.

Again, combining a fat burner and a pre workout can have powerful results, but just check the doses of lead ingredients to make sure you’re not overdosing on certain ingredients.

Natural Pre Workouts and Fat Burners

If bot products contain natural or naturally occurring ingredients, you’ll also have a much better chance of safe supplementation and avoid unwanted interactions between the products.

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