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Relentless Caffeine and Ingredients (Discussed)

Launched in 2006, Relentless is a product of the Coca-Cola Company and has become popular among enthusiasts in the UK.

It’s packed in a stunning, all-black can with a calligraphed letter ‘R’ punctured with a spear. But that’s not all Relentless has to offer.

The drink is packed with 160mg of caffeine in a regular, 16 fl oz (500mL) can. It also comes with several beneficial B vitamins like most energy drinks available today.

If you’re interested in knowing more about this drink, I’ve got everything you need right here!

Read on to find out!

Ingredients in Relentless Energy Drink

Below is the complete list of ingredients present in a 500mL can of Relentless.

Ingredients given on a Relentless can
Ingredients as per the back of a Relentless can
Ingredient TypeIngredients
EnergisersCaffeine, Guarana Seed Extract
WaterCarbonated Water
PreservativesPotassium Sorbate, Sodium Benzoate,
Sodium Citrate
AcidCitric Acid
VitaminsTaurine, Niacinamide,
Pantothenic Acid, Pyridoxine,
Cobalamin
Artificial SweetenerSucralose
Flavour EnhancerErythritol
Colour Caramel E150d
Relentless Energy Ingredients

Vitamins in Relentless

Vitamins play an essential role in many body functions. Having enough sources of vitamins and receiving a substantial amount is vital.

Relentless contains a significant amount of B Vitamins that will aid you in maintaining good health.

A study has shown that B-Vitamins may even help you have a good metabolism and improve brain function and energy levels.

VitaminQuantity (Per 500mL)Daily Value (%DV)
Vitamin B316mg100%
Vitamin B58.5mg142%
Vitamin B61.5mg107%
Vitamin B122.0µg80%
Vitamins in Relentless

Vitamin B-3

Vitamin B3, also known as Niacinamide, is an essential component required by your body for healthy skin.

Niacin deficiency can be caused by genetic disorders, malabsorptive conditions, and coming in contact with certain medications.

Vitamin B3 enhances blood circulation and prevents anaemia. It also boosts brain function and makes your skin healthier.

Vitamin B-5

Vitamin B5 or Pantothenic Acid is essential in energy drinks as it aids the body in burning fat into energy.

Deficiency can cause headaches, fatigue, irritability, and disturbed sleep, among other symptoms.

Vitamin B-6

Vitamin B6 or Pyridoxine is another B vitamin present in Relentless.

Pyridoxine plays a vital role in strengthening the immune system enabling it to fight a broader range of bacteria.

Vitamin B6 also causes you to have a better mood by releasing a hormone named serotonin.

Vitamin B-12

Vitamin B12 or Cobalamin produces red blood cells and help maintain the blood pH levels.

Other notable functions of Cobalamin include lowering the risk of dementia and reducing the number of congenital disabilities.

Nutritional Facts of Relentless

The table below outlines all the critical quantities of various ingredients present in Relentless.

Nutritional ContentsQuantity (Per 500mL)Daily Value (%DV)
Energy461kJ
(108 kcal)
5%
Carbohydrates
of which Sugar
31g
24g
12%
27%
Salt0.70g12%
Relentless’ Nutrition Facts

Advantages & Disadvantages of Caffeine

Coffee beans in a cup
Caffeine is in many beverages like coffee and tea.

Advantages of Caffeine

Energy drinks contain caffeine that offers many benefits. Some of these are:

  • Enhance energy level even if you lack sleep.
  • Provides the ability to do strenuous workouts and tasks.
  • It can help cure constipation.
  • It can stimulate the colon causing bowel movement.

Cons

Despite the known benefits of caffeine, like any other ingredients, it has its downsides too:

  • Too much caffeine consumption can result in poor dental hygiene.
  • Sugar present in most caffeinated beverages can cause cavities.
  • Excessive caffeine consumption can cause insomnia.
  • Caffeine can cause addiction.
  • It can raise your blood pressure.
  • It can increase your heartbeat.

Is Relentless Good For You?

While not particularly good for you, Relentless won’t cause you to face any adverse health effects if taken in moderate amounts.

The Food and Drug Administration has recommended people only have 400mg of caffeine per day. So it should be alright to drink two cans of Relentless.

Keep track of your other sources of caffeine as well; if the intake surpasses 400mg, you might suffer from the side effects caused by a caffeine overdose.

Note that you should not drink Relentless if you are under 18. The advised daily intake of caffeine for teenagers is 100mg, far lower than the amount present in a Relentless can.

Pregnant and nursing women should also avoid having drinks containing large amounts of caffeine; doing so can increase the risk and probability of miscarriage and low birth weight.

Does Relentless Contain Artificial Sweeteners?

Relentless contains Sucralose, a sweetener widely used in most sugar-free drinks.

Sucralose is a calorie-free sweetener 600 times sweeter than table sugar and is proven to be safe for consumption.

Caffeine Amount in Relentless

A 500mL (16 fl.oz) can of Relentless contains 160mg of caffeine.

It is essential to keep note of your regular caffeine intake. Make sure that you have no more than two cans of Relentless drinks daily.

Calories in Relentless

Relentless has 108 calories in a regular, 500mL can.

Although this amount is well within the intake limit of calories per day, 2500 for men and 200 for women, Relentless shouldn’t be treated as a pre-workout drink because it can add to your caloric intake.

If you’re on a calorie-restricted diet or doing intense workouts daily to burn calories, you can check out these calorie-free energy drink brands.

Who Should Drink Relentless?

Adults who want to rid themselves of fatigue after sleeping for only a few hours or those who want an energy boost for the day.

Students above 18 years old who want to pull all-nighters can also depend on Relentless to provide the required energy boost.

Or you might be an office worker who has had a long day at work and cannot concentrate on anything any further, a can of Relentless will be enough to energise and pull you through the rest of the day.

Can You Drink Relentless Everyday?

It is safe to drink Relentless every day if you moderate your consumption to no more than two cans a day.

Having more than two cans of Relentless can in one day cause the following side effects:

  • Trouble Breathing
  • Vomiting
  • Hallucinations
  • Chest Pain
  • Convulsions

The video below provides a thorough explanation of what happens after a caffeine overdose.

Caffeine can come with downsides too.

What Can You Do to Counter Caffeine Overdose Side Effects?

So you consumed more caffeine than you intended. Don’t panic; here are some things you can do to counter caffeine overdose!

Do Not Take Any More Caffeine

You don’t want to worsen the damage, so avoid having any more caffeine.

Drink Water – Lots of It

Once you have had too much caffeine, you will be urinating a lot. You must have enough water in your system to avoid dehydration.

Take Deep Breaths

One of the symptoms is anxiety, and you might notice that you have abnormally fast or short breaths; taking deep breaths or meditating can counter this.

Replenish Nutrients

If you are vomiting or have diarrhoea, chances are, you desperately need to restore vital nutrients in your body. Drinks like Gatorade and Pedialyte are made for situations like these.

If your symptoms do not subside and worsen to the point that you feel you might pass out, immediately contact a medical professional.

Relentless Energy Drink Alternatives

Check out these other fine energy drink brands!

Xyience Energy

Xyience Frostberry Blast Flavor
Xyience Energy – Frostberry Blast

Xyience is a popular option for many energy drink enthusiasts. It has zero calories and zero sugar.

If you’re health-conscious and would like to keep your calorie content to the minimum while also enjoying a good energy drink, Xyience is the right choice to make.

Bang

Bang Energy drink can
Bang Energy – Blue Razz

Bang is packed with a staggering 300mg of caffeine, and you won’t have any issues staying up after drinking a can of bang!

Like Xyience, Bang is also sugar and calorie-free. People looking for a significant boost in energy won’t be disappointed.

Celsius

Celsius Energy Driink
Celsius Energy Drink

Celsius is another famous sugar-free energy drink brand that contains no preservatives in its drinks.

A regular 12 fl oz can of Celsius has 200mg of caffeine present in it. While this amount is no match for Bang, it is enough to put you in a state of mental awareness and increase concentration.

Celsius comes in 12 unique flavours. Try out all of them and see for yourself which you like best.

Other notable energy drinks are:

Final Thoughts

While energy drink brands offer higher caffeine content, the 160mg present in Relentless is not an insignificant amount.

Make sure you are following the FDA guidelines and not exceeding the 400mg/day caffeine limit.

Relentless is a good source of caffeine and other important vitamins that you don’t normally get from your foods and beverages. These vitamins and nutrients can immediately energise you upon consumption.

But take note to consume in moderation as too many energy drinks can be detrimental to your health and may develop specific tissue damage and potential disabilities.

If you are caffeine-sensitive or with any other underlying health conditions, make sure to check with your attending physician first before drinking any energy drink.

Other Articles

If you like this article and you want to know more about energy drinks, check out the articles below:

About Adrian Carter

Adrian writes about energy drinks and their ingredients to shine a light on the facts behind the brand names.

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