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How Much G Fuel Can You Have A Day? (In-Depth)

It’s common advice to avoid drinking energy drinks every day. Thing is, we need something to help boost our energy for our daily activities.

And with how popular G Fuel is among people who are looking to avoid common side effects of energy drinks, I wouldn’t blame you for considering it an option. 

G Fuel tubs and shaker cup
Check out the many flavors G Fuel has to offer,

So if you do drink it, how many can you have in a day?

The answer is that you can have a maximum of 2 7g servings of G Fuel per day. G Fuel being sugar-free means you don’t have to worry about anything other than drinking too much caffeine. 

In this article, I’ll explain the benefits of G Fuel and how much you should be really drinking per day.

G Fuel Nutrition Facts

Here’s what you can find in the nutrition facts section of the G Fuel Powder tub. 

NutrientsAmount per serving (7g)
Total Fat0g
Total Carbohydrates5g
Vitamin C 250mg
Vitamin E 15 IU
Vitamin B610mg
Vitamin B12425mcg
Sodium 79mg
Nutrition Facts

As mentioned above, A single serving of G Fuel has 25 calories, no sugar, 75mg of Sodium, and a lot of B vitamins to boost your energy. 

Is G Fuel Sugar Free?

G Fuel is sugar-free. That might sound odd, especially when talking about a drink known for its sweet flavors, but it’s true. 

How does G Fuel have flavor then? Artificial sweeteners. 

Artificial sweeteners are a type of sugar substitute. They’re often used to flavor food and drinks that are meant to be sugar-free. True to that, many of them are several times sweeter than sugar. 

They also add very few or no calories at all. 

G Fuel has two of these artificial sweeteners: Sucralose and Acesulfame Potassium. 

Sucralose or “Splenda” is known for being 600 times sweeter than sugar and for being the most commonly used artificial sweetener. 

Meanwhile, Acesulfame Potassium (Ace-K for short) is 200 times sweeter than sugar but has a bitter aftertaste. To get around this, manufacturers often mix it with sucralose when using it to flavor their products.

Both of these are also considered safe by the FDA’s standards. 

Like any food or beverage, having too much artificial sweeteners in your system can cause drawbacks affecting your health. 

There are studies showing that Ace-K can be linked to weight gain. It’s also found in a lot of commonly consumed products like soft drinks, dairy products, cereals, and condiments. So if you have a lot of these in your diet, you really do have a reason to think you might be consuming too much of them. 

Meanwhile, Sucralose is suspected to cause imbalances in gut bacteria. These bacteria are essential to your digestive system’s ability to function; disrupting these gut bacterias’ activity can cause metabolic problems 

It’s also possible that if you’re sensitive to artificial sweeteners, consuming them regularly might cause a number of consequences to your health. 

G Fuel Ingredients

G Fuel Ingredients label
Ingredients found at the back of a G Fuel Powder tub

G Fuel’s label divides its ingredient list into 4 sections: Energy Complex, Focus Complex, Antioxidant Complex, and Miscellaneous ingredients.

The Energy Complex represents the components of the formula meant to give you energy. Usually, this is done by boosting your metabolism with amino acids and other substances. 

Another group of properties is called the Focus Complex. These are ingredients that boost your cognitive abilities, including memory, attention span, and focus. 

On the other hand, Antioxidant Complex is made up of the ingredients G Fuel uses to ease the strain your body endures. These antioxidants help your body by fighting the free radicals that cause oxidation reactions. 

Miscellaneous ingredients refer to things like the preservatives and food colorings. However, some of these preservatives also serve as antioxidants and are good for prolonging shelf life or perishable goods.

Energy Complex contains the following ingredients:

  • Taurine
  • L-Citrulline-Malate
  • N-Acetyl-L-Carnitine HCl
  • Glucuronolactone
  • Caffeine
  • Velvet seed extract

These are the properties found in Focus Complex:

  • L-Tyrosine
  • N-Acetyl-L-Tyrosine
  • Toothed Clubmoss Aerial Parts Extract
  • Bacopa Leaf Extract 
  • Adenosine-5′-Triphosphate Disodium Salt (ATP)
  • Choline Bitartrate

While the following ingredients are part of the Antioxidant Complex: 

  • Cabbage Palm Berry Extract
  • Pomegranate Fruit Extract
  • Pineapple Fruit Powder
  • Apple Fruit Powder
  • Orange Fruit Powder
  • Blueberry Fruit Powder
  • Lemon Fruit Powder
  • Lime Fruit Powder
  • Melon Fruit Powder
  • Sour Cherry Fruit Powder
  • Papaya Fruit Powder
  • Peach Fruit Powder
  • Pyrus Communis Fruit Powder
  • Grape Seed Powder
  • Grapefruit Fruit Powder
  • Plum Fruit Powder
  • Raspberry Fruit Powder
  • Strawberry Fruit Powder
  • Watermelon Fruit Powder

The Miscellaneous ingredients in G Fuel Powder are: 

  • Maltodextrin (preservative)
  • Pineapple Fruit Powder
  • Citric Acid (preservative)
  • Natural Flavors
  • Artificial Flavors
  • Beta Carotene (color)
  • Sucralose
  • Acesulfame Potassium
  • Silicon Dioxide (anticaking agent) 

Caffeine Content in G Fuel

G Fuel can have up to 140mg to 150mg of caffeine depending on what flavor you’re talking about. 

To put that into perspective, the recommended caffeine intake for adults is 400mg. That’s as far as you can go without putting your health at risk. 

Of course, there’s some debate as to how applicable this is— not everybody has the same tolerance level for caffeine. Some are more sensitive than others while others have more tolerance and need more to get the boost they need. 

400mg is also 4 cups of brewed coffee. That means that G Fuel is very high in caffeine despite being a healthy option. 

So based on caffeine content alone, you can drink about 2 servings of G Fuel a day at most. However, that assumes you don’t eat or drink any other caffeine products (e.g chocolate). 

Outside of G Fuel and coffee, caffeine can also be found in:

  • Chocolate (both the candy bars and the drinks)
  • Tea
  • Soft drinks (specifically Colas)
  • Iced Tea

Frankly, you’re going to want to rethink how much of these products you should eat or drink if you want to make G Fuel your every day drink. Otherwise, you can overdose in caffeine.

Caffeine Overdose 

Can be a helping hand. Or not.

Drinking more than 400mg of caffeine a day can result in:

  • Headache
  • Insomnia
  • Anxiety
  • Agitation
  • Fast heartbeat
  • Jitteriness 
  • Frequent urination

Insomnia is the one I think deserves special mention. 

Insomnia is defined as the lack of sleep, or sleep deprivation. When it’s caused by caffeine, it’s a result of caffeine’s adenosine-blocking effects. 

Adenosine is a hormone that promotes sleepiness during the day. Although blocking this can help keep you alert and ready for your tasks, overdoing it will ruin your circadian rhythm or body clock. 

People with insomnia can experience:

  • Foul mood
  • Difficulty falling asleep
  • Slower reaction times
  • Fatigue
  • Poor attention span

How long before bedtime should you drink G Fuel then?

Caffeine typically reaches peak levels in the bloodstream 30 minutes after consumption. After that (3-5 hours later), the amount in your blood halves and will slowly be worked out of your system from there. 

So it would be ideal to make sure that your last serving of G Fuel for the day is 6 hours or more from your bedtime. You might still have the caffeine in your system 6 hours later, but it’ll be a lot easier to deal with compared to if you drank it nearer to bedtime. 

Who can Drink G Fuel?

G Fuel can be consumed by anyone over the age of 18. Even the official site says this and strongly discourages any minor from using it. 

That said, drinking G Fuel can also be risky for pregnant women, women who are nursing, and anyone who’s sensitive to caffeine in general. 

Why take this seriously?

Children and adolescents are more sensitive to the bad sides of caffeine compared to the adults. That means if a child drinks too much, they’re likely to experience anxiety, dehydration, insomnia, and high blood pressure more strongly than an adult would.

Minors and Caffeine 

Here’s a video of a news report and interview regarding the death of a teenager who drank too much caffeine. According to the report, the boy consumed an energy drink, a cup of brewed coffee, and a soda all within a 2 hour frame. 

It would be easy to say that kids and teens shouldn’t have caffeine at all after seeing this. But with how common the substance is in places other than coffee, that wouldn’t be reasonable at all. 

The American Academy of Pediatrics believes that children ages 12 to 18 should limit their caffeine intake to 100mg a day. In other words, no G Fuel at all since it has 50mg more than what an adolescent can safely consume. 


G Fuel is a sugar-free energy drink that you can have once or twice a day. 

It might be high in caffeine content, but even the most caffeinated flavor (150mg per serving) won’t bring you that near the 400mg cap.

Two servings of G Fuel will give you at most 300mg of caffeine. That’s about the same amount drinking 3 cups of coffee would give you. 

If you don’t have any sensitivity to the artificial sweeteners in G Fuel, then caffeine is the only thing you need to worry about. 

You can even drink G Fuel while on a diet since it has very low caloric content (25 calories per serving) compared to its competitors. 

Personal Opinion

Honestly, I’d only stick to one G Fuel a day. Although 140mg to 150mg per serving is well within the safety limit, G Fuel is far from the only place you can find caffeine. 

What I mean by this is that if you have a sweet tooth or just love to eat chocolates, then chances are that you’ll hit that 400mg daily threshold without trying even with just one serving of G Fuel. 

Admittedly, the remaining 100mg seems like a lot of wiggle room. And it is for some people. 

But like in the video, everyone reacts to caffeine differently. 400mg might be the accepted limit for adults, but your body might consider that too much depending on your tolerance level. 

What else can you do if 1-2 servings of G Fuel isn’t enough then?

Depending on the person, the best ways to energize outside of energy drinks are:

  • Teas
  • Getting enough sleep
  • Eating a good breakfast
  • Maintaining a healthy diet
  • Staying hydrated

All in all, moderation is the key to responsible consumption. 

I believe keeping the daily limits in mind and knowing your body’s needs is the key to figuring out how to go about consuming potentially dangerous drinks like G Fuel.

Or any other energy drink for that matter. 

If you have any more questions about any of the stuff here, don’t be afraid to consult with your doctor or dietician. They’re easily the most qualified people to help you understand the more specific details of all this and help you plan out a diet that’ll address your needs.

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