Understanding The Science Behind Common Bodybuilding Supplements

Bodybuilding supplements are a popular way for individuals to enhance their performance and achieve their fitness goals. These supplements are designed to provide the necessary nutrients and support to help build muscle, increase strength, and improve overall athletic performance. Below, we’ll explore the science behind some of the most common bodybuilding supplements.

Whey Protein 

Whey protein is a popular bodybuilding supplement derived from milk, although dairy-free and vegan alternatives now exist on the market. It is high in an essential branched amino acid called leucine – the best for growth promotion (anabolic) of the amino acid family – and is quickly absorbed by the body. Amino acids are the building blocks of protein – they are essential for muscle growth and repair. Studies have shown that consuming whey protein can help increase muscle mass, improve strength, and reduce muscle damage following exercise. Not only that, it can prevent age-related muscle loss.


The use of steroids across the US is rapidly increasing. Research now suggests that 15 to 30% of community weight trainers who regularly go to gyms or health clubs are exploring the benefits of using steroids to gain muscle mass – and it’s also now so convenient to buy steroids Canada that the number in North America is likely to increase. The science behind them is clever – they act as androgen receptors that influence cellular function and gene expression. 

Essentially, they regulate the pathways involved with male-characteristic development – testosterone and muscle development – but also induce rapid increases in calcium levels within the body.


Creatine is, by far, one of the most common supplements consumed by people looking to enhance and speed up the muscle growth process, along with whey protein. It’s a naturally occurring compound that is found in meat and fish, but also as a tablet or powder typically consumed once daily. 

Creatine helps supply energy to the muscles during high-intensity exercise. Consuming creatine boosts your phosphate stores, allowing the body to produce more Adenosine 5′-triphosphate (ATP), also known as energy to fuel the body. There are also studies that prove that, when used in conjunction with other supplements, it is effective at increasing muscular strength and lean mass.


One of the lesser-known amino acids, beta-alanine is something we already naturally produce in our bodies. It is also available as a supplement and is commonly used by bodybuilders and athletes to improve athletic performance. Beta-alanine helps to reduce muscle fatigue and increase endurance by buffering the build-up of lactic acid in the muscles during exercise. Studies have shown that beta-alanine supplementation can improve high-intensity exercise performance and increase muscle mass.


BCAAs, or branched-chain amino acids, are essential amino acids that the body cannot produce on its own. They are found in protein-rich foods such as meat, fish, and dairy. BCAAs are commonly used as a bodybuilding supplement to help build muscle, reduce muscle soreness, and improve athletic performance. Studies have shown that BCAA supplementation can help reduce muscle damage and improve recovery following exercise.

Bodybuilding supplements are not necessarily essential – some bodybuilders fuel their bodies through diet alone. But the science proves that the supplements mentioned enhance muscle growth and support the process. While these supplements can be effective, it is essential to remember that they should be used in conjunction with a healthy diet and regular exercise. It is also crucial to consult a healthcare professional before beginning any new supplement regimen.

Written by Austin Crane

Austin is the principle web director for Untamed Science and Stone Age Man. He is also the web-director of the series for the High School biology, Middle Grades Science and Elementary Science content. When Austin isn't making amazing content for the web, he's out on his mountain bike or in a canoe.

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