نوشابه‌های انرژی‌زا نوشیدنیهایی حاوی مواد گوناگونی مانند کربوهیدراتها (قندها)، ویتامین‌ها، مواد معدنی و مواد محرکی مانند کافئین، تورین (یک اسید آمینه، پیش ساز پروتئین) و گلوکورونولاکتون (یک ماده طبیعی که در بدن از تجزیه قند ساده گلوکز ایجاد می‌شود) هستند.معمولاً مصرف‌کننده پس از مصرف اینگونه نوشابه‌ها انرژی زیادی می‌گیرند. یک قوطی۲۵۰ml نوشابهٔ انرژی‌زا معمولاً ۵۰ تا ۶۰میلی گرم کافئین دارد. این نوشیدنی‌ها به منظور افزایش سطح انرژی مصرف‌کننده تهیه می‌گردند.

نوشابه های انرژی زا امروزه در میان ورزشکاران به دلیل افزایش نیرو و بهبود عملکرد ورزشی طرفداران زیادی را به خود جذب کرده است.در یک تعریف ساده می توان گفت نوشابه انرژی زا، نوشیدنی است که موجب افزایش انرژی، در بدن مصرف کننده می شود.در مطلب قبلی، در خصوص نوشیدنی مناسب ورزش توضیحاتی داده شده و همین موجب گردید تا علم ورزش در خصوص نوشابه های انرژی زا اطلاعاتی را به شما مراجعه کنندگان گرامی ارائه دهد.

آثار نوشابه های انرژی زا

۱٫تحریک افزایش متابولیسم
۲٫افزایش نشاط و به صورت عام، سرحالی.
۳٫افزایش تمرکز و سرعت واکنش درون سلولی و برون سلولی.
۴٫بهبود و افزایش عملکرد.

نکات پایانی در خصوص مصرف نوشابه های انرژی زا
مصرف این قبیل مواد برای زنان باردار توصیه نمی شود. در کل زنان باردار دستورات خاص دوران بارداری را باید دنبال کنند.

How do energy drink?

Energy drinks are supposed to do just what the name implies — give you an extra burst of energy. As it turns out, most of that “energy” comes from two main ingredients: sugar and caffeine. A typical energy drink can contain up to 80 milligrams of caffeine (about the same amount as a cup of coffee). By comparison, a 2006 study found that the average 12-ounce soda contains 18 to 48 mg of caffeine.
Other than caffeine levels, how do energy drinks differ from sodas and sports drinks? Soft drinks are mainly water, sugar and flavoring. They don’t do anything for your body; they’re just supposed to taste good. Sports drinks are designed to replenish fluids lost during activity. They typically contain water, electrolytes and sugar. Energy drinks have added caffeine and other ingredients that their manufacturers say increase stamina and “boost” performance. They’re designed for students, athletes and anyone else who wants an extra energy kick.

Energy drinks became popular in Asia long before they reached the United States. In 1962, Japanese pharmaceutical company, Taisho, released its Lipovitan D drink. It was designed to help employees work hard well into the night. Lipovitan D contains taurine, the same ingredient found in many of today’s energy drinks.
The very first “energy” drink to reach the United States wasn’t really an energy drink at all — it was more of a hyped-up soft drink called Jolt Cola. The “jolt” in the cola was a lot of added sugar and caffeine. Introduced in the 1980s, Jolt Cola quickly became a staple of college campuses.

Here are some of the ingredients you may find in popular energy drinks and what they do in the body:
Ephedrine – A stimulant that works on the central nervous system. It is a common ingredient in weight-loss products and decongestants, but there have been concerns about its effects on the heart.
Taurine – A natural amino acid produced by the body that helps regulate heart beat and muscle contractions. Many health experts aren’t sure what effect it has as a drink additive (and the rumor that taurine comes from bull testicles is false).
Ginseng – A root believed by some to have several medicinal properties, including reducing stress and boosting energy levels.
B-vitamins – A group of vitamins that can convert sugar to energy and improve muscle tone.
Guarana seed – A stimulant that comes from a small shrub native to Venezuela and Brazil.
Carnitine – An amino acid that plays a role in fatty acid metabolism.
Creatine – An organic acid that helps supply energy for muscle contractions.
Inositol – A member of the vitamin B complex (not a vitamin itself, because the human body can synthesize it) that helps relay messages within cells in the body.
Ginkgo biloba – Made from the seeds of the ginkgo biloba tree, thought to enhance memory.