Caffeine elicits multiple mechanisms of actions in our body. For a complete list of caffeine benefits check this recent review
published in 2017.
Below we compiled an accurate list of such benefits, especially in relation to alertness and weight loss.
1. Increased Alertness After Caffeine Intake
Increased alertness is probably the most popular benefit of caffeine, since we all experience the caffeine kick after coffee first thing in the morning.
Caffeine, a purine methylxanthine alkaloid, is structurally similar to adenosine. Because of this similarity, several researchers (one study here
) believe that caffeine can bind to adenosine receptors. As a result, the receptors are unable to detect adenosine, and this in turn stimulates the pituitary gland to release adrenaline, and indirectly the release of dopamine as well.
These chemical processes bring about an effect on mental performance, making you feel more alert (in this study
), focused and improving your ability to concentrate (read more in this study
), whilst reducing feelings of drowsiness. In line with this, in yet another study it was discovered that caffeine can reduce feelings of mental fatigue. Read more about this study here
The caffeine boost of Burniva can be really helpful on days when you’re feeling low in energy due to lack of sleep, or just as a result of daily life stresses and strain, pushing you to get through the day.
2. How Caffeine Burns Fats Whilst Improving Exercise Performance & Endurance
But there is more to caffeine than that. Besides its impact on the central nervous system, caffeine has also been found to influence substrate utilization (the source used as energy, ex. carbohydrates or fats) during training. The claim that caffeine acts as an ‘ergogenic aid’ has been well founded, as discussed here
. In simpler terms, an ‘ergogenic aid’ is a substance that improves your exercise performance and enhances endurance.
This is achieved through several mechanisms of actions, already mentioned above: ‘lipolysis’, ‘fat oxidation’, and a reduction in muscle glycogen breakdown, are very well documented ones (read more here
). Following is a brief explanation of how this works.
In general, during exercise our body first utilizes the glycogen (carbohydrate) stores and then moves on to start breaking down fat for more energy. Once the muscle glycogen gets used up however, the feeling of exhaustion kicks in. After a significant dose of caffeine intake, a delay in glycogen depletion has been noticed (as shown in this study
). This in turn delays feelings of exhaustion, hence making you go on for longer. Instead of using glycogen (carbohydrates) for energy, the body is stimulated to use fatty acids from stubborn body fat deposits instead! ‘Lipolysis’ and ‘fat oxidation’ involve a cascade of chemical reactions that eventually produce energy by breaking down this stored fat, hence the fat burning properties of caffeine. This is essentially what improves your workout performance and what makes you work out for longer.
A 2015 study
by the University of Alcalá in Spain observed a team of volleyball players after they had consumed caffeine, and concluded that their accuracy of shots across the net, their reactions and their overall physical performance was significantly higher than without caffeine.
This is how caffeine in Burniva Supplements will improve the quality of your workout performance by supporting you to a more intensive and longer workout. Subsequently, Burniva will help you burn more calories since it pushes you to move faster, lift more, or last longer during your workout. In turn, a greater amount of lean muscle in your body will help you to burn more calories day after day.
3. Caffeine’s Involvement In Appetite Suppression
Caffeine is also believed to help suppress appetite or prolong feelings of satiety. However as discussed in this review
, a few studies seem to have failed to report a relationship, and more studies are required to confirm this causation.
4. Caffeine’s Effect On Thermogenesis & Metabolism
That is not all! Caffeine has also been found to potentiate a thermogenic effect as shown in this study
, which in turn burns more calories. Thermogenesis is the process of generating heat in our bodies. Calories are used up in this heat production process - the more heat or energy produced, the more calories are used up. The process whereby caffeine increases thermogenesis is still unknown, however.
In relation to this, numerous studies such as this one
, have confirmed that caffeine has an effect on the resting metabolic rate, whereby it speeds up your metabolism, thus making you burn more calories during the day. This is another way how Burniva succeeds at increasing your energy expenditure, hence making sure the body uses more calories over time.