Science Behind EMV Jabu Energy Drink – Quick Review

Science behind Jabu Emv

Notable Ingredients

  • green tea leaf extract
  • guarana seed extract
  • yerba mate leaf extract
  • stevia and isomaltulose

Interesting and Unusual Ingredients In This Energy Drink

Isomaltulose is a natural sweetener found in honey and sugar cane extract. It has the same two “members” that make table sugar: glucose + fructose = sucrose. However the glucose and fructose are arranged (i.e., holding hands) in a different way than they do in sucrose.  As a result of this arrangement, isomaltulose is only half as sweet as sucrose.

This energy drink contains JABUTICABA, which is basically a Brazilian grape. Jabuticaba fruit contains protein, calcium, iron, phosphorus, Vitamin C and some B vitamins.

Jabuticaba has polyphenol antioxidants like those in cranberries and grapes. These antioxidants have been shown to have anti-inflammatory and anti-cancer properties…in test tubes and lab rats. It’s difficult to prove these benefits outside of a controlled cell or rat cage because life is too complicated to prove a cause and effect of this magnitude.  In other words, it’s extremely difficult to control for things like diet, stress, sunlight, exercise, the number of hours sitting down, etc. to conclusively prove whether polyphenols prevent cancer.

When Juice Becomes A Tool

Jabuticaba isn’t very high on the ingredients list, meaning there might not be enough of it in this drink to be an effective dose for those antioxidant health benefits. The same can be said for the other juices in here too: apple, grape, acai, and acerola. All of these juices offer some variety of health benefits related to the benefit of antioxidants. But the dosage makes a difference. So does the order.

Apple and Grape juice are the most predominant, and they are very sweet, which tells me this drink is using those juices more for flavor and sweetness than for health benefits.

Regardless, this is a healthier alternative to the stereotypical energy drink. This energy drink has 80 mg caffeine (same as Red Bull) from 3 leaf extracts: 1.Green Tea, 2.Guarana, 3.Yerba Mate. With 80 mg caffeine, this drink fits Fatigue Level 2. [See 5 Levels of Fatigue to see how to use this system to avoid caffeine toxicity, dependency, and tolerance]

You can find more about the science behind energy drink ingredients here at GreenEyedGuidecom and within my book, “Are You a Monster or a Rock Star: A Guide to Energy Drinks- How They Work, Why They Work, How to Use Them Safely” on Amazon (and now on Audible!!!).

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Cool Blue Revitalizer, Red Bull Purple Edition, Iconic Protein Coffee Drink, Monster Hydro Mean Green, F’Real Frappe Coffee, and West Coast Chill: June Recap of Quick Reviews – Science of Energy Drinks

Here’s a recap of the quick reviews posted this month for the “Science of Energy Drinks” series on the GreenEyedGuide Instagram and Facebook pages: Cool Blue Revitalizer, Red Bull (sugarfree) Purple Edition, Iconic Protein Coffee Drink, Monster Hydro Mean “Green” (more like yellow), F’Real Frappe Coffee, and West Coast Chill (caffeine free!) energy drink.

Cool Blue Revitalizer

  • Caffeine Content 100 mg = Fatigue Level 2

Science Behind Cool Blue Revitalizer

Science Behind Cool Blue Revitalizer: This drink makes a big deal about 3 natural ingredients but it’s UNNATURALLY blue.

✔1. “Real Sugar” – true, but it ALSO has sucralose.
✔2. “Natural Flavor” – I guess BLUE drink =BLUE-berries? To me this drink tasted like CITRIC ACID OVERLOAD!!! WOAH BUDDY!
✔3. “Natural Caffeine” – From where? The label doesn’t specify but it’s 100 mg caffeine [#fatiguelevel2]
🤓PET PEEVE: 1 container= 1.3 Servings? Really…you couldn’t change your formula or can size?
🔬SODIUM BENZOATE— Did you know that benzoate salts like this one prevents growth of microorganisms like yeast and mold; it’s used for preservation of sour food (pH 4 and lower) and is often used with other preservatives especially at low pH (acidic food).
🔬SODIUM BENZOATE SAFETY NOTES — Consumers can ingest up to 5mg per kg of body weight of benzoic acid and its salts according to European Commission – Scientific Committee on Food. There are safety concerns suspected but unconfirmed for benzene formation from benzoic acid with ascorbic acid. However, this risk “cannot be reliably assessed on basis of data available” per BfR Expert Opinion. [More Info on the “Panera KNOW-No List“]

Red Bull Purple Edition (sugarfree)

  • Caffeine Content 114 mg = Fatigue Level 3

Science Behind Red Bull Purple Sugar Free

The Science Behind RED BULL PURPLE EDITION: Red Bull has less caffeine and fewer ingredients than Monster and Rockstar. No guarana, carnitine, glucuronolactone, ginseng, or ginkgo; NO PRESERVATIVES! NO SUGAR!

🤓Since Red Bull has been around a long time there are mounting scientific studies testing its effectiveness
🤓Red Bull is not only the NUMBER ONE SELLING ENERGY DRINK BRAND  on the PLANET, they also set the standard for energy drink industry SAFETY GUIDELINES. Red Bull was the FIRST ENERGY DRINK Company to list caffeine content on their cans several years ago, paving the way for other companies to follow suit.
🤓FURTHERMORE Red Bull has been open about their commitment to food safety and quality – you can read all about that HERE: ⚡ Red Bull on Caffeine Safety and Transparency
✔This MAY NOT BE FOR YOU IF you are trying to avoid artificial flavors and/or sweeteners – This drink has Sucralose and Ace-K but I am more concerned about the KNOWN effects of high sugar intake than the DEBATABLE effects of these two sweeteners.
✔Ace-K has been USED AROUND THE WORLD for 15 years and used in the US since 1988.
✔Sucralose was approved by FDA in 1998, and it’s considered safe by government/regulatory agencies worldwide.
✔As far as caffeine interactions that (maybe?) make energy drink more dangerous than coffee, I enjoy Red Bull’s simple ingredients, sugarfree options, and moderate caffeine content. 🤓💚⚡⛾⚡🔬⚡

Iconic Protein + Coffee Drink

  • Caffeine Content 180 mg = Fatigue Level 3

Science Behind Iconic Protein Caffeine drink

If caffeine is best for PREworkout and protein is best for POSTworkout, what do you do with a CAFFEINE+PROTEIN COMBO?
But seriously, here’s what you should know:

✔ This drink has 180 mg caffeine per container. That’s as much as a Monster Energy (160 mg)
✔Caffeine doses of 3-6 mg caffeine per kg bodyweight are the best for pre-workout. That’s the range used in “[X] Til Exhaustion” studies (cycling, running, rowing…)
✔ Protein doses of 20-25 grams* protein taken in the 30 min window after workout is ideal for muscle growth but overall protein consumption matters too. *NOTE bigger protein doses don’t mean bigger results
✔ONLY 3 GRAMS SUGAR from Agave. Sweetness also comes from MONK FRUIT (aka Luo Han Guo) & STEVIA! I LOVE seeing these natural sweeteners used in caffeinated beverages 🤓💚🔬➕⛾➕🏋️‍♀️

Monster Hydro Mean Green

  • Caffeine Content 125 mg = Fatigue Level 3

Science Behind Monster Hydro

As the GREENEyedGuide I’m bummed “Mean GREEN” is yellow.

As a Food Scientist, I know artificial green is hard to keep green and natural green often involves spirulina, which has the slightest seawater taste. I don’t normally talk about taste in my reviews bc it’s subjective, but this tasted like flat Moutain Dew or old lemonade to me. 🤓💚🔬⛾

KEY Ingredients:
✔Sugar sources include sucrose (table sugar), glucose, and artificial sweetener sucralose. 23g! Not awful but <10g is my sweet spot (food pun!)
✔NO GUARANA OR TAURINE OR CARNITINE so really different than the typical Monster Energy Blend.
125 mg caffeine per bottle, compared to 180mg in most flavors of Monster Energy.

Is Monster Hydro a healthier alternative to Monster Energy?
YES in terms of lower caffeine content and FEWER Caffeine-(other ingredient) INTERACTIONS, which some people* think make some energy drinks more dangerous than coffee.
*I’m on the fence about this. Caffeine-Taurine-glucuronolactone combos are fine but no data for or against caffeine-carnitine combos yet.

F’real Frappe Coffee

  • Caffeine Content not disclosed – Unknown Level of Fatigue

Science Behind FReal Frappe Coffee

That Moment When you want to hide your CAFFEINE CONTENT so badly, you COMPARE yourself to something AMBIGUOUS. “2x caffeine as leading frozen coffee” 

Who is the leading FROZEN coffee and HOW MUCH caffeine do they have? It is FALSE to assume a cup of coffee has a standard amount. 1 cup at Starbucks doesn’t equal 1 cup at Pikes or 1 cup at your hotel.
Neat concept with the DIY F’Real Blender machine but if we’re going to GET REAL (or “f’real”) ABOUT CAFFEINE SAFETY we need EVERYONE to report caffeine content.

Have you ever seen a bottle of ALCOHOL that DID NOT disclose the %?
PS – sixty-one grams of sugar y’all. Sixty. One. But look at how clean and simple the ingredients are. Too bad simple doesn’t = healthy. 🤓💚⛾🔬

West Coast Chill (caffeine free energy drink)

  • Caffeine Content = ZERO! Fatigue Level 0-1 Energy Drink

Science Behind West Coast Chill

An energy drink with NO CAFFEINE?!? Does the term “energy drink” mean anything anymore!?!

Let’s inspect it: 🤓💚⛾🔬Active ingredients include:
🤓Ribose – a compound that participates in an odd (pun) energy producing reaction called the Pentose phosphate pathway. Promising science, just hasn’t caught on yet.
🤓Ginseng – be skeptical of benefits!
🤓Arginine – amino acid with important jobs in the body (Urea Cycle Waste Removal). HOWEVER the BEST way to supplement arginine is to TAKE Citrulline!
🤓B-vitamins AND minerals – minerals aren’t usually in energy drinks. Curious… 🤓💚🔬⛾📚

Click HERE to learn more about how to use the 5 Levels of Fatigue.

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Energy Drink of the Month – June 2017: Guru Organic Energy

So many puns… Does your energy come from an Organic source or is it an innate, inherent, organic burst of energy? If Organic Chemistry is the study of carbon-based molecules and coal is combustible compressed carbon matter, can we call coal “organic energy”? Can we call a beverage Organic if it’s carbon-ated? All puns aside (for now), let’s talk about a carbonated energy drink that is certified-Organic.


The Energy Drink of the Month for June 2017 is Guru Organic Energy.

Guru has other energy drinks to offer, but for this month we’ll focus on the original.  As with any energy drink, we need to discuss the WHO, WHAT, and WHEN:

  • Who is this for? What ingredient phobias and preferences does it cater to?
  • What are the key ingredients and what do they do?
  • When should someone drink this, based on caffeine content and the 5 Levels of Fatigue?

Who It’s For: Ingredient Preferences and Phobias

Guru is certified-Organic, gluten free, non-GMO Project Verified, and artificial free. The drink is sweetened with Organic cane syrup and also Organic white grape juice concentrate. In total, there are 30 grams of sugar.

This is an energy drink without the stereotypical energy drink ingredients that strike fear into the hearts (bad pun, #arrthymia) of those that think all energy drinks are more dangerous than coffee.  Guru Organic Energy does not contain taurine, carnitine, glucuronolactone, or any B-vitamins. It does contain guarana though, but we’ll get to that. Don’t panic.

Did you know the word “Organic” has more regulations around it than the words “energy drink”? You can’t use the word “Organic” on the label unless the product meets specific regulations, and that compliance is confirmed through certification. Of course, these regulations are not without flaw and Organic products are not immune to consumer confusion about the implications of the term.



What’s In It: Key Ingredients and Functions

  • Citric Acid and “Apple Acid”
    “Apple acid” is a synonym for malic acid, but perhaps “malic acid” sounds more chemical-y to some people. The genus for apple is Malus, and malic acid is what gives apples their characteristic tart taste. Both citric and malic acids are organic acids that occur naturally in fruits like lemons and apples. Some sugar-free energy drinks get carried away with the use of citric acid because it can provide a tartness that makes up for a lack of sugar. However, too much citric acid can sting the tongue. That’s not a problem for Guru, fortunately.


Compound Interest Acids
Check out the full article for Common Fruit Acids at Compound Interest


  • Green Tea Leaf Extract
    Green Tea Leaf Extract is the predominant source of caffeine in Guru Organic Energy. In addition to the caffeine, green tea extract also provides health benefits in the form of epigallocatechin gallate (EGCG). This mouthful of an antioxidant is one of the reasons green tea is the healthiest beverage on the planet (second only to water).
    The catechin and polyphenol content in this beverage are not claimed, so Guru cannot be called an “antioxidant beverage”. Nonetheless, the more green tea you can get in your diet, the better (the same cannot be said for caffeine, however). The benefits of green tea extract are vast — especially in isolated cells, test tubes, and lab rats. Green tea’s benefits for humans are harder to prove but, to quote from this informative and delightful article by our friends at Compound Interest,

“…the combination of L-Theanine and caffeine can improve speed, performance and accuracy in cognitively demanding tasks – put simply, L-Theanine ‘smooths out’ the stimulating effects of caffeine. – Compound Interest, The Chemistry of Tea

  • Guarana Seed Extract
    Guarana has a lot in common with Snape, oops, I meant Professor Snape. When energy drinks first came out, people were afraid of guarana and claimed it was dangerous and devious. Now it’s an ingredient people are proud of and happy to see.
    Way back in the mid-2000s, (before I started this blog, unfortunately) guarana was considered bad because of the additional caffeine it provided. Drinks that had both caffeine and guarana were thought to be the most dangerous of all because of the cumulative caffeine content. Note, this was before energy drink companies started putting “Caffeine from All Sources” on the labels. With the whole food and artificial free movement, guarana became more acceptable and appreciated because it is a natural source of caffeine
  • Panax Ginseng
    Did you know that not all ginseng offers the same health benefits? Panax ginseng, also called Asian or Korean ginseng, is the good kind. Siberian ginseng doesn’t contain any of the characteristic chemical compounds, called ginsenosides, that make ginseng “Ginseng”. When harvested, ginseng can be dried and bleached to become white ginseng, or steamed and air dried to become red ginseng.
    If you were a lab rat, ginseng might improve memory. With humans, the data is less convincing. Ginseng allegedly helps reduce stress but that’s only when it’s sipped warm or when the root is chewed. How convenient that the act of holding a warm object is also attributed to stress reduction. So is the act of mastication. Suffice to say I’m not sold on the power of ginseng…but it either doesn’t help you or it does. Nothing suggests it’s going to hurt you, especially in the amounts found in energy drinks.


Source: Caffeine Informer


When To Consume: Caffeine Content and the 5 Levels of Fatigue

This product contains 142 milligrams of caffeine from the green tea extract and the guarana seed extract combined. As a reminder, people under 18 should have no more than 100 milligrams of caffeine a day, and healthy non-pregnant adults should have no more than 400 milligrams of caffeine a day.

This may be an Energy Drink in Disguise, but it has almost as much caffeine as a Monster Energy (Guru: 142 milligrams, Monster, most flavors, 160 milligrams). That makes this FATIGUE LEVEL 3! This is not a drink you want to drink every day because you want to save the stronger caffeinated beverages for when you are more than just dehydrated or a little tired.

We talked about Fatigue Level 3 during the 10 Day Caffeine Challenge. Here’s a refresher about why this level is special:

Bottom Line

Guru Organic Energy is a great alternative to stronger caffeinated beverages like Monster Energy. With 142 milligrams of caffeine, this is not something you want to consume every day. However, with its artificial free, certified-Organic, Non-GMO, gluten free ingredients, this is a beverage you can be proud to drink.




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Uptime Energy, Bawls Guarana, Amp Energy Zero, and V8 + Energy: May Recap of Quick Reviews – Science of Energy Drinks

Here’s a recap of the quick reviews posted this month for the “Science of Energy Drinks” series on the GreenEyedGuide Instagram and Facebook pages: Uptime Energy, Bawls Guarana, Amp Energy Zero, and V8 + Energy.



uptime energy

Science Behind Uptime Energy drink: 3-Ingredients to Focus on:

⛾1-Angelica Root Ext (aka Danggui) is used for female reproductive disorders in Traditional Chinese Medicine. After 15 minutes on Pubmed & SciDirect I DON’T KNOW WHY it’s in here. (Dear science nerds, please help if you do).
⛾2-Bee Pollen has vitamins, polyphenols, and enzymes, and has shown health benefits in studies but ONLY WHEN USED IN GRAM AMOUNTS! This product’s whole “Power Base” combined is only 20% of a gram. [1 gram = weight of 1 paperclip].
⛾3-Caffeine is the only ingredient that (kind of) “produces energy” but this bugs me. (#stickler #rant #chemnerd) There’s 142 mg caffeine in here = ALMOST a Monster (160mg).

bawls guarana energy

LET’S TALK ABOUT GUARANA. BAWLS Ingredients include caffeine, HFCS, citric acid, sodium benzoate, natural AND artificial flavor, caramel color. No B-vitamins, taurine, carnitine, or other stereotypical energy drink ingredients.

CAFFEINE CONTENT: from guarana and pure caffeine; 100mg Caffeine per can from all sources, according to the CAFFEINE INFORMER database. That’s LESS caffeine than 12 oz Red Bull (114 mg). The limit for those under 18yrs old is 100mg.

GUARANA is a vine from the rainforest bearing orange-red fruit with black seeds. Caffeine is in the seeds. Multiple studies show guarana improves cognitive performance, mental fatigue, and mood, and it is supposed to boost fat metabolism by encouraging the body to burn fat instead of protein and carbs. HOWEVER, the same benefits are true of caffeine in general and caffeine from green tea in particular. So these benefits are not specific to guarana… and this product gives you 50g sugar per can.

amp energy


EDTA, Sodium benzoate, and Sodium hexametaphosphate: All 3 are in this drink. Does a canned drink need so much preservation?
1. EDTA: the ingredient statement says “to protect flavor”…from WHAT? From metal ions of the can, which can oxidize and degrade the natural+artificial flavor and the B-vitamins.
PURPOSE: Chelating agent, meaning it binds metal ions to limit their deleterious effects; EDTA stabilizes food color, aroma, texture, inhibits oxidation of fats, oils.
SAFETY NOTES: Some sources say EDTA “robs the body of nutrients” but EDTA is safe to consume **up to 3 grams per day **and AMOUNTS USED IN FOOD are in the milligram per kilogram or parts-per-million range. CPSI puts this in the “Safe” column.
***FUN FACT: EDTA is actually used to treat people with heavy metal poisoning because EDTA can grab the heavy metals and escort them out of the body.

PART 2 of Amp Preservative review: WHAT does Sodium benzoate do?
Sodium Benzoate: “preserves freshness”… but it’s not like this is a fresh ripe watermelon right? Well, this IS an acidic drink…
PURPOSE: Prevents growth of microorganisms like yeast and mold; used for preservation of sour food pH 4 and lower, often used with other preservatives especially at low pH (meaning acidic food).
SAFETY NOTES: Consumers can ingest up to 5mg per kg of body weight of benzoic acid and its salts
***FUN FACT: Benzoic acid occurs naturally in cranberries, prunes, plums, cinnamon, ripe cloves, and most berries.

PART 3 of AMP preservative review: “Hexa-meta-huh?”
3. Sodium hexametaphosphate: “to protect flavor”… YOU’D THINK AMP’S FLAVOR IS LIKE GOLD with all this PROTECTION!!!
SAFETY NOTES: This ingredient is widely accepted as safe in many countries. It has the additive number E452. In controlled studies, it was not carcinogenic in rats, nor did it cause any reproductive or developmental toxicity symptoms. It’s fine if you consume a little bit every now and then, but consuming it regularly can have some negative effects due to mineral imbalances. MODERATION IS KEY!

v8 plus energy

Energy drinks are dangerous, right? V8 Energy, busting stereotypes since 2011! The caffeine in V8 Energy comes from green tea extract which provides a natural lift as well as the amino acid L-theanine which is believed to provide added focus. []
🔹️L-theanine can reduce anxiety and blood pressure increases in high-stress individuals (ie people more susceptible to biological changes when stressed)
🔹️This can contains 80 mg caffeine (as much as Red Bull) BUT…
🔹️ the Academy of Pediatrics says people <18 can have UP TO 100 mg caffeine per day.
🔹️With 34% juice, only 11 grams of sugar, and caffeine from green tea extract, this is one of the BEST healthy alternatives!
🔹️See V8 Energy Drink of the Month

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Energy Drink of the Month – May 2017: Zevia Zero Calorie Energy

Sometimes we just want life to be simple. In high school, life was not simple, but at least my schedule was predictable. Each hour was dedicated to a specific subject; a chiming bell was enough to break my To Do list into neat little blocks of time. With graduation season upon us, many will leave their predictable schedules and somewhat-organized world for the unpredictable chaos that comes with adulthood. As a tribute to that unavoidable complexity, this month we review (yet another) energy drink with clean, simple ingredients. If you’re familiar with my mission on, you know I love nothing more than busting the energy drink stereotype.

This month’s pick is another “energy drink in disguise” that doesn’t fit the water, juice, tea, or soda category. With 120 milligrams of caffeine per can, it’s undeniably an energy drink but also undoubtedly not “a deadly concoction of caffeine and sugar”.  

The Energy Drink of the Month for May 2017 is Zevia Zero Calorie Energy.  

Zevia’s new energy drink line

At the time of this post, there were four flavors available: Grapefruit, Kola, Mango/Ginger, and Raspberry/Lime. They all have 120 milligrams of caffeine per can, zero Calories, zero grams of sugar, zero vitamins, zero preservatives (not counting the acids), and nearly identical ingredient lists. As you might’ve guessed from our other Energy Drink of the Month winners, I’m a berry person, so my favorite is Raspberry/Lime.

Zevia energy facts panels

Key Ingredients 

Carbonated Water

We’ve talked about carbonation many times before, so here’s some refreshing (pun!) insight from Popular Science’s article on why humans like fizzy drinks

“Chemically, adding CO2 to water creates carbonic acid, which is tasted by sour-sensing taste cells. Research has suggested that a certain enzyme, carbonic anhydrase, sits on those cells and reacts with the acid to cause carbonated water’s familiar popping sensation. (Fun fact: climbers who take altitude-sickness drugs that block the enzyme, then drink champagne, report the bubbly as having a dishwater-y taste.”

Citric Acid and Tartaric Acid

The Kola flavored Zevia Zero Calorie Energy has tartaric acid and citric acid, whereas the other three just have citric acid. This excellent infographic from our friends at Compound Interest explains the science behind these two popular acids.


Compound Interest Acids


Stevia Leaf Extract

Finding a high-quality stevia extract is no simple task. Oh sure, we know what molecule is responsible for the sweetness, but isolating that molecule and delivering it is far more complicated than producing table sugar. Sugar is sugar is sugar, right? But water doesn’t always taste the same, even if it’s just water. The same goes for Stevia. In fact, tasting Stevia samples was one of the tasks I dreaded most while I worked as a product developer for a major supplement company. One bad sample, and you’d be experiencing a bitter metallic aftertaste the rest of the day (or week: See “A Food Science Horror Story”).

It turns out that some people are Stevia Super Tasters so they will get a bitter metallic aftertaste with Stevia when many others would taste only sweetness. This bitter metallic aftertaste is why stevia is often paired with another natural sweetener, erythritol.

Caffeine Comparison 

The top three best-selling energy drink brands are Red Bull (80 mg caffeine per 8 oz can; 114 mg caffeine per 12 oz can), Monster Energy (160 mg caffeine per 16 oz can), and Rockstar Energy (240 mg caffeine per can, most flavors). Since Zevia Zero Calorie Energy is an “energy drink in disguise” that breaks the energy drink stereotype, it makes more sense to compare its caffeine content to similar products, other healthy alternatives.  Below are the caffeine contents listed in the Caffeine Informer database:

When to Consume = Fatigue Level 3 

When it comes to caffeine content, 200 and 400 are special numbers. Quoting from the “Scientific Opinion on the safety of caffeine” from the European Food Safety Authority:

“Following a request from the European Commission, the EFSA Panel on Dietetic Products, Nutrition and Allergies was asked to deliver a scientific opinion on the safety of caffeine, providing advice on caffeine intakes, from all dietary sources that do not give rise to concerns about adverse health effects for the general healthy population and subgroups thereof. Possible interactions between caffeine and other constituents of so-called “energy drinks”, alcohol, p-synephrine and physical exercise should also be addressed. Single doses of caffeine up to 200 mg (about 3 mg/kg bw for a 70-kg adult) do not give rise to safety concerns. The same amount does not give rise to safety concerns when consumed < 2 hours prior to intense physical exercise under normal environmental conditions. … Habitual caffeine consumption up to 400 mg per day does not give rise to safety concerns for non-pregnant adults…” 

The 5 Levels of Fatigue is a system I developed during my years of researching energy drinks. The 5 Levels of Fatigue helps people find the product most appropriate for how tired they are, thus minimizing caffeine dependence, toxicity, and tolerance. Anything with more than 200 milligrams caffeine should be saved for more dire energy emergencies like Fatigue Level 4. A product with 100-200 mg caffeine belongs with Fatigue Level 3. Since this product has 125 milligrams of caffeine per can, this product fits Fatigue Level 3. It is a carbonated product, which usually means the caffeine would feel stronger than a non-carbonated equivalent like the caffeinated (still) water from Avitae due to carbonation’s effects on the stomach.

Bottom Line 

If you are looking for a strong, sugar-free, artificial-free carbonated energy drink Zevia is a great option. You don’t have to fret about “the dangerous of energy drinks” with this product. Zevia Zero Calorie Energy is simple. Life is complex enough.



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