How Long Does Red Bull Last? Get The Answer And More Here

It seems everyone needs more energy these days. Many flock to coffee shops for a caffeine fix, but for others, coffee simply isn’t enough anymore. Energy drinks are flooding the market, with new brands released almost daily. Yet Red Bull remains the most famous brand of energy drink. But does Red Bull help? Is it safe to drink? And how long does Red Bull last?

The caffeine and sugars in a Red Bull stay in your system for ten hours. It’s safe to assume that Red Bull will give you a five-hour boost. When talking about shelf life, Red Bull is safe to use if unopened for up to two years after the manufacturing date and no more than four days after opening. 

Many people have questions about how safe it is to drink Red Bull, how many you can safely consume, whether it’s vegan or gluten-free, and some even wonder what it tastes like but are too afraid to try it.

Let’s now take a closer look at Red Bull and answer these questions as well as we can. But first, let’s see what a Red Bull contains and what it does for you.

For How Long Will Red Bull Give You A Boost?

The length of the boost that Red Bull gives you depends on many things, like how much caffeine you usually drink in a day.

If your body becomes used to large amounts of caffeine, a Red Bull will give you less of a boost than usual.

But Red Bull is not just about caffeine; it contains many things that are added to provide you with more energy.

The first ingredient is sugar. The sugar boost kicks in within 10 minutes after starting to drink a Red Bull, and it gives us an almost immediate rush of energy.

Unfortunately, the sugar energy wears off within about an hour, and we tend to crash. At this point, we have to remember that the other ingredients are still working.

The second essential ingredient in Red Bull is caffeine. This helps us to stay awake and focused.

It increases our blood pressure and boosts our heart rate, making us more willing and eager to take on difficult challenges.

Thirdly, Red bull contains multiple vitamins, especially a variety of B vitamins. These improve our metabolism and help the body absorb energy from food much faster. 

The caffeine and B vitamins remain in our bodies for 10 hours but reach their half-life at 5 hours, which is usually when we feel the crash. 

All in all, it’s safe to assume that a Red Bull will give you a rush of energy for an hour, after which it will slowly decline.

This decline does not mean that you should consume more Red Bull since most of the ingredients are still active for nine hours after that, and drinking more than one Red Bull per day could be dangerous to your health, negatively affecting your kidneys, liver, and heart.

How Many Red Bulls Is Too Many?

Some health experts say that even one Red Bull is one too many.

Though this is not an entirely scientific statement, it shows the negative way some people look at Red Bull and other energy drinks.

The two most concerning parts of Red Bull are sugar and caffeine. Red Bull also has a sugar-free version, which is slightly safer to consume with less of an energy rush and a much lower impact on our fat and cholesterol levels.

Caffeine is a more difficult question. The general guideline is that adults over 19 years of age should not consume more than 400mg of caffeine in a day.

Just 100mg is the safe daily recommended caffeine allowance for younger children and adolescents. Anything more than that could lead to caffeine overdose and severe heart problems.

Because one 250ml can of Red Bull contains around 80mg of caffeine, we can assume that adults should not consume more than five cans per day.

However, that is not taking into account that caffeine remains in the body, gradually depleting, for around ten hours.

So consuming the five too close to one another is also risky.

Combining Red Bull with other sources of caffeine, like coffee, can also be dangerous. So it’s not as simple as saying that five cans are safe.

The general rule, as indicated on the can as well, is that you should wait at least four hours between cans of Red Bull as well.

This is for healthy adults; those with underlying heart conditions should definitely consume even lower amounts.

What Does Red Bull Taste Like?

Red Bull has gone through several flavor changes over the years.

Originally the flavor was often described as “tangy and citrus.” Some even said it tasted like “sour soda with cough syrup.” 

There are a few different flavors to choose from these days, so it often depends on which one you go for, but they all tend to have a slightly tangy, sour taste to them.

Original Red Bull and the sugar-free variant have a slight berry taste to them, combined with the original citrus flavor.

This creates a pleasant blend between sweet and sour tastes that many people find irresistible.

Other flavors have more of an apple, grape, or “generic” taste to them rather than the berry-citrus of the original.

Is Red Bull Vegan?

Despite popular belief, Red Bull is made with zero animal byproducts. That makes Red Bull perfectly vegan.

There’s some doubt in some circles because of the taurine content in Red Bull since taurine is naturally obtained from bulls.

However, the taurine used in Red Bull is artificially manufactured, so it is safe for vegans and vegetarians to consume.

Is Red Bull Gluten-Free?

The Red Bull website states that none of the flavors and variants of Red Bull contain any wheat, lactose, or dairy.

So besides having no animal byproducts, Red Bull is also perfectly gluten-free and lactose-free.

Despite this fact, it is not certified as gluten-free, although this appears to be more due to a lack of interest in getting the certification. The contents of a Red Bull are indeed gluten-free.


Red Bull may not be the safest drink on earth. Especially for youngsters, the health effects could be disastrous.

But within limits and with some self-control, it could give you a five to ten-hour energy boost on the days that you need it most.

But if you are struggling with heart problems, it’s best to stay away; Red Bull may not give you wings, but it could give you some things you don’t want.