What are Preworkouts and Fatburners?

Pre-workout and fat burners are supplements which are often used across the fitness world. They are designed to increase the metabolism, so workouts are more explosive. These supplements can also help burn more calories to result in fat loss. They are divided into two categories as pre-workouts are designed to give you a short powerful boost for a workout, while fat burners are designed to be used throughout the day, providing you supplements which can influence the body to utilise fat stores more efficiently.

Pre workout supplements are multi-ingredient formulas that are designed to boost energy and performance. There is no preset formula for a pre-workout, but the usual range consists of caffeine, vitamins, creatine and other extracts which boosts the metabolism. Below is the guide of what you can usually find, and how they influence the body.


Caffeine is the most common supplement on the market. It’s used across the world to boost energy and focus. Pre-workouts (and fat burners) use it as one of the main ingredients in their formula.

Caffeine acts as a central nervous system stimulant, which increases alertness and arousal, giving a boost on a workout. Research has indicated that it may help the body burn more fat. As a central nervous stimulant, caffeine has the ability to increase the blood levels of the hormone adrenaline. Adrenaline is the hormone which the body induces when a you need a boost of energy. The classic analogy for adrenaline is the fight or flight response. Adrenaline can signal to the fat cells, telling them to release fat into the blood to provide an additional energy source. Therefore adrenaline has the ability to unlock this energy source, which can result in fat loss, providing the individual is in a calorie deficit.

Nitric Oxide Precursors

You can commonly find nitric oxide precursors in fat burners and pre-workout. This is because the body requires nitric oxide to promote metabolism and fat loss. A precursor is a molecule which becomes the desired product with a bit of help. By increasing nitric oxide precursors in the body, you can give the body a higher affinity to produce nitric oxide. This comes with numerous benefits.

Nitric oxide has the ability to expand and relax the blood vessels. When expanded, this increases blood flow, allowing the body to perform better when induced in exercise. Increased blood flow will result in the delivery of oxygen and energy from the blood to the skeletal muscles, allowing more powerful training. Alongside caffeine, which allows fats to enter the bloodstream due to the increased adrenaline, nitric oxide gives the body every opportunity to utilise this free-flowing energy.


One of the most popular supplements in the fitness industry, creatine has the ability to improve endurance in workouts. 

Creatine is found in the skeletal muscles. Amino acids, the building blocks of protein, create creatine. You can consume creatine by eating protein-rich foods. However, you would need to consume a lot of protein-rich food to obtain the right amount! Therefore, as creatine is readily available and inexpensive, it may be best to supplement in order to meet this goal.

Creatine works in the resynthesis of Adenosine Triphosphate (ATP) which is the body’s main energy source. Carbohydrates create ATP. When ATP is utilised by the body, it is broken down to Adenosine Diphosphate (ADP) and an inactive phosphate. This happens via hydrolysis, which releases free energy – this is then utilised by the cell. Creatine is fundamental for the replenishment of ATP. It has the ability to recycle the phosphate group and pass it back to ADP to create ATP. This means that the body can have a further energy source. You can therefore boost your workouts and prevent fatigue, resulting in extra calories spent.

B Vitamins

B vitamins are a class of water-soluble vitamins that play a vital role in cell metabolism. They help enzymes that work in the cellular metabolism system. This system creates ATP and releases energy, which is vital for growth homeostasis across all systems of the body. Therefore by implementing B vitamins in pre-workouts and fat burners, this gives the body the ability to create and expend ATP. This will then lead to more accessible energy for the body to perform better, boosting the metabolism and creating a higher energy expenditure.


Pre-workouts and fat burners can give your body every chance of utilising energy in a workout, creating a bigger energy expenditure which can result in fat loss. You can enhance your current performance by using them. Pre-workouts and fat burners can be a great supplement to use in your fitness journey if used correctly. They tick many boxes in strength, fat loss and endurance.

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