Caffeine

Learn about the effects of caffeine on athletic performance, bodybuilding and endurance, as well as its optimal dosage to enhance your workouts.

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Caffeine is one of the most popular and widely consumed substances in the world. It is present in many beverages, such as coffee, tea, and energy drinks like pre-workouts . It is often used to boost energy and focus. But its effects are not limited to that. As a key element in the field of sports, particularly for bodybuilding and endurance, this alkaloid is widely studied for its benefits on physical performance.

In this article, we'll explore the effects of caffeine, its benefits for athletes, its role in bodybuilding, as well as practical tips on how much to consume and the ideal time to take it.

What is caffeine?

Caffeine is a natural stimulant substance found in many plants, such as coffee, tea, cocoa, and some fruits. It is one of the most widely consumed psychoactive substances in the world, mainly for its energizing effects and ability to increase alertness.

How does it work?

Caffeine acts on the central nervous system by blocking adenosine, a neurotransmitter responsible for the feeling of fatigue. This helps improve concentration, reduce the perception of effort and increase endurance. This is why it is so popular among athletes, whether for an intense weight training session or an endurance race.

Caffeine and its effects on the human body

When consumed, this substance quickly enters the bloodstream and reaches its peak effectiveness after about 30 to 60 minutes. It can improve physical performance by increasing attention, alertness and endurance. But what exactly are the effects of caffeine on the body, particularly in a sporting context?

Effects of caffeine on athletic performance

Caffeine has been widely studied for its effects on athletic performance. According to a study by Southward et al. (1), caffeine significantly improves endurance performance and exercise capacity. Athletes who consume caffeine before training often experience improvements in their ability to sustain prolonged exertion.

Improved endurance

One of the main reasons why athletes consume caffeine is its positive effect on endurance. Several studies have shown that caffeine increases an individual's ability to perform physical activity for a prolonged period of time without feeling excessive fatigue. This is due to the stimulation of the central nervous system, which helps push the limits of fatigue and improve performance during long training sessions.

Caffeine and mental focus

In addition to its effects on physical endurance, caffeine also improves mental focus. Caffeine stimulates the release of dopamine and norepinephrine, two key neurotransmitters for attention and mental agility. This makes it a valuable ally for sports that require maximum concentration, such as CrossFit or weightlifting. A study conducted by Mclellan et al. (2) found that caffeine improves cognitive performance, including alertness and reactivity.

The Benefits of Caffeine for Bodybuilding

Caffeine is not only beneficial for endurance sports, but it is also beneficial for bodybuilding. When taken before a workout, caffeine can help increase muscle strength and performance. Here are some of the main benefits for bodybuilding enthusiasts:

Improved muscle strength

Studies have shown that consuming caffeine before training can increase performance capacity during strength training exercises. It works by stimulating adrenergic receptors, thereby increasing the release of norepinephrine and adrenaline, two hormones that promote muscle contraction.

The study by McLellan et al. shows that caffeine can improve muscle strength and power performance (2), especially during high-intensity sets.

Caffeine and workout motivation

Caffeine also acts as a psychological booster. By increasing alertness and reducing the perception of fatigue, it can help maintain high motivation throughout training. This can be especially useful during strength training sessions where it is often necessary to push one's limits.

How much caffeine should you consume to optimize performance?

The ideal amount of caffeine varies from person to person depending on several factors, such as individual tolerance, body weight, and caffeine sensitivity. However, research suggests that the optimal dose is generally between 100 and 200 mg .

When to take caffeine?

The timing of your caffeine intake also plays a crucial role in optimizing its effects. Studies show that the best time to take caffeine is about 30 to 60 minutes before your workout , when blood levels peak and the effects begin to kick in.

Caffeine Risks: When to Consume with Caution

Although this alkaloid has many benefits, it is not without risks, especially when consumed in excess. Excessive caffeine consumption can cause side effects such as:

  • Insomnia: Avoid consuming caffeine too late in the day.
  • Anxiety: High doses may increase anxiety in some people.

Side effects of caffeine

The risks of caffeine vary depending on individual sensitivity. As a general rule, it is advisable not to exceed the recommended doses for a caffeine supplement or to not exceed 400 mg of caffeine per day (about 4 cups of coffee) depending on your weight. Some people may experience side effects even with lower doses, so it is essential to know your own tolerance and adjust consumption accordingly.

Recommendation: Before starting a caffeine supplement or consuming it for performance purposes, it is important to consult a healthcare professional.

How to Choose a Good Caffeine Supplement?

Criteria to consider

When choosing a caffeine supplement, there are several criteria to consider:

  • Purity and quality: Choose quality products that clearly indicate the amount of caffeine per dose.
  • Form of caffeine: Prefer forms of caffeine that have been proven to work, such as caffeine anhydrous.
  • Additives: Make sure the product does not contain unnecessary chemicals or low-grade additives.

Conclusion :

In summary, caffeine is a powerful ally for athletes, offering proven benefits in terms of physical performance, endurance and mental focus. However, as with any substance, it is important to respect the recommended dose and to be aware of the risks associated with excessive consumption.

Before incorporating caffeine into your workout routine, it’s essential to understand its impact on your body and consult a healthcare professional if you have any concerns. With proper use, caffeine can truly maximize your performance, whether you’re doing strength training or endurance racing.

Sources:

  1. Southward, K., Rutherfurd-Markwick, K., & Ali, A. (2018). The Effect of Acute Caffeine Ingestion on Endurance Performance: A Systematic Review and Meta–Analysis . : https://link.springer.com/article/10.1007/s40279-018-0939-8
  2. McLellan, T., Caldwell, J., & Lieberman, H. (2016). A review of caffeine's effects on cognitive, physical and occupational performance . : https://www.sciencedirect.com/science/article/pii/S0149763416300690
  3. Guest, NS, VanDusseldorp, TA, Nelson, MT, Grgic, J., Schoenfeld, B., Jenkins, NDM, & Arent, S. (2021). International society of sports nutrition position stand: caffeine and exercise performance . : https://www.tandfonline.com/doi/full/10.1186/s12970-020-00383-4

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