Stacker 2 Fat Burner Review [Should You Be Worried?]

Stacker 2 Fat Burner Review

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Stacker 2 Fat Burner Review

Today’s Stacker 2 Fat Burner Review gives us the chance to look at a stand out fat burner.

Until we check out the ingredients, we don’t know if the strong branding on their label is justified though.

Like many supplements that sell well on Amazon, appearances can only get you so far, you need some substance to back it up. This used to be a controversial supplement but they have amended their ingredients to make it more desirable in many people’s eyes.

If this is going to make it onto our top recommended fat burners list, it needs to do the following well:

  • Burn fat effectively
  • Be safe
  • Suppress appetite
  • Increase energy

If it can give us all this then we might be looking at a great option for you to consider. Let’s start by getting to know them a little.

Stacker 2 Fat Burner Review: Who Makes This Fat Burner?

NVE PharmaceuticalsStacker 2 Fat Burner

Here we have the US-based company that makes this product.

One of their claims is that this product is made by the producers of the world’s strongest fat burner. The Stacker 2 brand has been going since 1997.

They advertise this product as being Ephedra-free. This is good news as it is a banned substance in some areas and a controversial ingredient that isn’t short of potential side effects.

Their website is as aggressive as their marketing looks and just some of the places you may have heard of their products from including the UFC, NBC, Fox News, and other TV channels/programmes.

They offer free shipping on orders over $50 which is always useful. After spending some time looking, we couldn’t find a money back guarantee.

We mentioned earlier that it sells well on Amazon. This isn’t always a good thing as some of the worst products we have reviewed managed to shift a lot of bottles.

Some people choose not to go down this route of selling as they don’t want their products listed alongside low-quality products.

They say that their formula can help to boost a sluggish system without the use of ephedra. All that matters is that the ingredients are true fat burners.

Stacker 2 Fat Burner IngredientsStacker 2 Fat Burner Ingredients

This is where we can really see what this product is all about.

The early signs aren’t great though. Their use of a proprietary blend stops us from knowing a lot of the dosages. This is something we see far too often and doesn’t exactly feel honest.

If an ingredient has been dosed well, why not tell us about it? All but one ingredient find themselves in the proprietary blend in this product.

Their suggested serving of one capsule with every meal, not exceeding 3 capsules a day does spread out the benefits though.

Like we said, they advertise the fact that it is ephedra free! This is because they used to include it but you will be glad it doesn’t anymore. 

Yerba Mate

With some Caffeine content, it has its uses for fat loss.

Yerba Mate is a thermogenic ingredient. This means it will heat the body up on the inside, causing it to burn fat to cool itself down. You’ll be burning fat even when you rest.

It can also suppress appetite so it ticks a couple of the important boxes for a fat burner. says it has not been shown to be a more effective fat burner than compounds like Green Tea Catechins, though it can help reverse some of the adverse health effects associated with obesity.

It doesn’t seem to be as potent or as useful as other fat burner ingredients but even if the effects are minor, it seems to help.

However, in order to know just how useful it can be we need the dosage.

Green Tea Leaf Extract

A very good inclusion and an ingredient found in many of our top recommended fat burners.

In terms of fat burning, it is among the best. It is another thermogenic that is more reliable than the previous ingredient.

According to WebMD, It contains a milder caffeine content than the likes of Caffeine Anhydrous. They also say Green Tea is about 2-4% Caffeine. This is great because this means it can also boost your thinking and alertness.

The polyphenols in Green Tea are great because they reduce the impact of oxidative stress and leave a calming effect.

Still, the dosage is very much needed here. Most supplements give you anything from around 200 – 500 mg of this ingredient.

Since the proprietary blend it is in totals 801 mg and has 4 other ingredients in there as well, it is unlikely to be as potent as some of the high-quality fat burners out there.

Guggulsterone Gum Extract

Not a great inclusion for a fat burner. sums it up by saying they have been investigated for their usage in elevating thyroid function, but with lackluster results.

Even WebMD is not impressed. They say that it is commonly used for weight loss in people who are obese or overweight. But there is limited scientific research to support these uses.

There is research to show that when it was taken with a string of other ingredients, along with an exercise program and restricted calories it helped to lose weight slightly, However, there is limited evidence to suggest that it can achieve this on its own.

You would expect to lose weight when exercising and eating less, a fat burning ingredient should enhance the impact.

The lack of dosage information also means that we can’t see how much room it is taking up either.

Cassia Nomame Plant Extract

Not the most common ingredient but one that could be useful.

WebMD says that people take it by mouth for weight loss. It is thought to work by preventing the body from absorbing dietary fat. It causes this fat to be excreted in the feces, which might help promote weight loss in some people.

They also go on to file its uses and effectiveness for weight loss under the ‘insufficient evidence for’ section.

Because it is an understudied ingredient, there also isn’t a lot known about the required dosage for it to have any effect.

White Willow Bark Extract

Not the most impressive fat burner ingredient.

Most supplements tend to go for Black Pepper Extract for an ingredient that enhances the capabilities of the others.

Since this product isn’t packed full of the most impressive fat burner ingredients, this is an unnecessary inclusion. White Willow Bark Extract actually works in a similar way to Aspirin. This is because it can alleviate pain but this isn’t what we are looking for of course.

Also, some people have been found to experience side effects when consuming it. WebMD advise that these can include itching, rash, and allergic reactions, as well as an upset stomach. WebMD does say that it is likely to be safe, but not when taken for longer periods.

The fact that it is in the proprietary blend also means we don’t get to see if it can be effective or not anyway.


A good ingredient to end on.

Caffeine makes its way into many of the more impressive fat burners on the market for lots of reasons. It can provide an energy increase that could be really needed. If you are using a fat burner alongside a diet that restricts calories, this is really the case.

Caffeine will get your metabolism moving and wouldn’t be out of place in almost any supplement. A pre-workout and nootropic supplements are two common types.

We’re not sure what form of Caffeine we are getting but a lot of supplements use Caffeine Anhydrous because it is a powdered form that is easily absorbed and gets to work fast.

The dosage of 200 mg per capsule would be a good amount if you only consumed one or two.

The third capsule gives you 600 mg of Caffeine which is not advisable. The FDA themselves advise that such a high amount is too much.

This can be the equivalent of around 6 cups of coffee and we do not advise consuming so much.

It is good that they have provided dosage information but potential side effects of too much Caffeine includes insomnia, jitters, anxiety, high blood pressure, irritability, upset stomach and more.

Stacker 2 Fat Burner Side Effects

The main concern is the levels of Caffeine.

A lot of products include stimulants, this is fine. What isn’t fine is giving you more than what is considered by many to be a well-tolerated amount.

We just went through the potential side effects of too much caffeine. These included insomnia, jitters, anxiety, high blood pressure, irritability, upset stomach and more.

Too many supplement companies claim to have potent products but really, all you will be experiencing is the effects of Caffeine. Don’t be fooled by this approach and make sure the label has plenty of proven fat burners.

This includes Caffeine which is a good fat burning ingredient, you just need to make sure you are having under 400 mg to ensure it is a safe but effective amount.

White Willow Extract also has some potential side effects with the likes of itching and an upset stomach something to look out for.

Stacker 2 Fat Burner Review Pros and Cons

Stacker 2 Fat Burner Review Pros

  • Green Tea Extract a good ingredient
  • Serving schedule is good

Stacker 2 Fat Burner Review Cons

  • Proprietary blend
  • Too much Caffeine
  • Ineffective ingredients

Stacker 2 Fat Burner Review

So, does Stacker 2 Fat Burner work?

It might make you feel like you are experiencing something different, but this is likely to just be the effects of Caffeine.

Beyond that, there aren’t a lot of impressive ingredients. Yes, Green Tea Extract is one of the better ingredients for fat burning but we have no idea how much we are getting. It could be a small and ineffective 50 mg for all we know.

They claim to make the world’s strongest fat burner, but really if it looks like this, it is just going to be full of Caffeine.

Your heart rate will certainly be on the go and your metabolism will help to burn fat as a result but there aren’t enough proven appetite suppressants and only a minimal amount of thermogenic ingredients.

It is good to see the people asking does Stacker 2 have ephedra can be assured that it no longer does.

We are surprised to see it sell so well on Amazon. Clearly, a lot of people aren’t sure what to look out for. Still, some of the worst products we have reviewed seem to sell well on there.

For best results, stick to a fat burner that contains prove, safe and effective ingredients. Otherwise, you are going in blind when really, it is your health you are considering. Luckily, you have looked into the benefits and warnings that come with Stacker 2 Fat Burner.

Top Fat Burners We Recommend

If this product didn’t quite cut it for you, don’t worry we have you covered!

We were asked so many times to round up what we thought were the best fat burners around, and we have delivered so you don’t have to search numerous articles trying to find one that’s safe, natural and will produce effective results to help you burn fat and get ripped…

Check out our Top 5 Recommended Fat Burners

Top 5 fat burners for 2018 - best fat burners on the market for 6 pack abs

This article will help you to make an informed decision as to what is the best option for you. To find out more, read our Top Fat Burners


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