What are Preworkouts and Fatburners?

Pre-workout and Fat burners are supplements which are used vastly across the fitness world. They are designed to increase the metabolism so workouts are more explosive and to burn more calories to result in fat loss. They are divided into two categories as Pre-workouts are more designed to give you a short powerful boost for a workout and 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 on what constitutes 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 fund and how they influence the body


Caffeine is the most common supplement which is used across the world to boost energy and focus and 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 and research has indicated that it may help the body burn more fat. Caffeine has the ability as a central nervous stimulant to increase the blood levels of the hormone adrenaline. Adrenaline is the hormone which is induced by the body when a boost of energy is required, the classic analogy is the fight and flight response. Adrenaline has the ability to signal to the fat cells to release fat into the blood to allow additional energy source. Therefore, this gives one the opportunity to use this unlocked energy source which can result in fat loss, providing they are in a calorie deficit.

Nitric oxide Precursors

Nitric oxide Precursors are commonly found in fat burners and pre-workout as the body requires nitric oxide to promote metabolism and fat loss. A precursor is a molecule which is then transformed to the desired product. By increasing nitric oxide precursors in the body, this gives the body a higher affinity to produce nitric oxide which hold numerous benefits.

Nitric oxide has the ability to expand and relax the blood vessels, when expanded, this increases blood flow, allowing the body to run more optimal when induced in exercise, this allows the delivery of oxygen and energy from the blood to the skeletal muscles, allowing more powerful training. Alongside with caffeine, which has allowed fats to enter the bloodstream due to the increased adrenaline, this 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 and the body creates it from amino acids, the building blocks of protein. Creatine can be consumed by eating protein-rich foods, however, you would need to consume a lot of protein-rich food to obtain the right amount, therefore creatine is readily available and is inexpensive to meet this goal.

Creatine works in the resynthesis of Adenosine Triphosphate (ATP) which is the body’s main energy source which is created from carbohydrates. When ATP is utilised by the body, it is broken down to Adenosine Diphosphate (ADP) and an inactive phosphate via hydrolysis which releases free energy which is then utilised by the cell. Creatine is fundamental for the replenishment of ATP as 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 which means it can boost workouts and prevent fatigue, resulting in extra calories spent.

B Vitamins

The B Vitamins are a class of water-soluble vitamins that play a vital role in cell metabolism. B vitamins work with enzymes that are involved in the cellular metabolism system which creates ATP and releases energy which is vital for growth homeostasis across all systems of the body. Therefore by implementing them in pre-workouts and fat burners, this gives the body the better able to create and expend ATP which will 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 are formulated to give your body every chance of utilising energy in a workout, creating a bigger energy expenditure which can result in fat loss. They are designed to enhance and if used correctly can be a great supplement to use in your fitness journey as they tick many boxes in strength, fat loss and endurance.

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