Tyler Sellers
Published by Tyler Sellers
Fact checked by Donald Christman, BHSc FACT CHECKED

RSP Nutrition is kind of a household name in the fitness industry, and one of their main products is called Quadralean.

As part of their weight loss range of products, this fat burner seems to have some celebrity backing. And in our experience, that often means more money is spent on advertising than product development.

So, we ordered a few bottles and worked with some of our clients from different walks of life, to see if it actually lives up to the hype.

Let’s dig right into this RSP Nutrition Quadralean review.

What Is Quadralean?

RSP Nutrition QuadraLean Stimulant Free

Quadralean is a stimulant free fat burner that claims to be scientifically formulated to help you better deal with stubborn body fat.

It's aimed at addressing the 4 key factors of weight loss: energy, fat stores, appetite, and metabolism.

It claims to help with general weight loss goals as well as a cutting phase for performance athletes; it is focused on a few ingredients that should lead to increased metabolism.

More on the ingredients shortly.

The manufacturer also claims that their fat burner would help with appetite suppression, which could make quite a difference when it comes to avoiding snacks and sticking with a healthy diet.

 

To summarize their claims, it should increase your energy expenditure and help you eat less food.

Quadralean Ingredients

To assess the fat burning ingredients Quadralean has, we sat down with our dietitian to look at two main factors.

Firstly, is there any science behind the chosen formula. And secondly, is the dosage per serving strong enough to help with weight loss management.

Let’s see what we found.

1 - Conjugated Linoleic Acid (750 mg)

Conjugated Linoleic Acid

For purposes of discussion, let’s just call it CLA. Conjugated linoleic acid makes you sound like you’re one of the cool science dudes ;-)

One study, in particular, was able to link conjugated linoleic acid to a positive impact on fat storage [1].

And we also noted that Quadralean seems to have one of the higher doses of CLA on the market and may actually be effective for weight loss.

2 - Acetyl L Carnitine (500 mg)

Again, insider abbreviations are easier to remember: ALCAR.

Acetyl L Carnitine has been linked to delivering the energy from fat into muscle cells, which could otherwise become a bottleneck for dealing with the release of fat cells.

“Acetyl L carnitine also helps your muscle mitochondria burn fat, which can increase your endurance, give you an edge in the gym and help you recover faster.”

-Spencer Brooks, nutrition science writer.

3 - Green Tea Extract (250 mg)

Green Tea Extract

Green tea extract is possibly one of the underrated thermogenic ingredients, but quite a few medical studies have confirmed this effect [2].

The one thing we would say about this is that the dosage might be a bit on the low side based on the research information from our dietitian.

4 - Grains Of Paradise Extract (25 mg)

Grains Of Paradise Extract

This fancy-sounding ingredient is something we haven’t seen in many weight loss supplements. Some studies have shown good effects of weight loss [3].

However, this was achieved at a higher dose than the Quadralean content.

Note that Quadralean contains gelatin, so vegans should stay away. We do have a list of the best vegan fat burners, make sure to check that out.

Quadralean Pros and Cons

RSP Nutrition QuadraLean Stimulant Free

First of all, let me mention that we were all happy with the amount of CLA contained in this fat burner. Compared to other supplements, it has considerably more, which seems to be backed up by folks who reviewed it.

The serving size of 3 capsules on an empty stomach twice daily is also reasonable as well. With no caffeine, that also means you could take it later in the day. Read here for more details on when you should take your fat burner supplement.

However, we did find that it had limited impacts on appetite, and there were quite a few reports of users having an upset stomach.

Basically, it’s not as great as it claims to be.

Pros
  • A good dose of CLA for thermogenic triggers
  • Stim free blend to avoid caffeine jitters and sleepless nights
Cons
  • Some ingredients don’t seem to be in a high enough dose
  • Some upset stomach reported in a few reviews
  • Reports of limited effects on appetite control

Any Side Effects?

female taking medicine

You’d expect possible side effects if you exceed 6 capsules a day or even in one go. But not so much if people start getting cramps and bloating after a normal dose.

In some of the reviews, this was related to taking it on an empty stomach, but other people also reported that they had to give up on it as the cramps just weren’t worth the heightened metabolism.

Going with natural fat burner ingredients may minimize these side effects

Here are some alternatives you can try:

Where Can You Buy It?

It’s pretty much always available on the official website, but I’ve also seen some good offers on Amazon. Just be careful that you check the serving size, as it should always contain 150 capsules.

With quite a few reports of counterfeit products on dodgy marketplaces, it’s always best to stick with trusted sites when you’re ordering fat burners.

User Reviews

During our research phase, we always go through Facebook groups and forums to see if other people were able to achieve their weight loss goals and drop some pounds. This is also a way we try to confirm our own results.

Here are some important ones to highlight.

As a bodybuilder, he was looking for help in a cutting phase, and Quadralean seems to have helped him also maintain lean muscle mass.

-Johnny from NY

Lisa was on a weight loss program and joined a spinning class. Her results were positive as well, but she did need to reduce the dosage to avoid cramps.

-Lisa from Chicago

Emily switched to a different fat burner after two weeks because the bloating seemed severe. Even taking it immediately before food didn't seem to solve the problem.

-Emily from Austin

While Anna did report some fat loss, she was missing the appetite suppression to extend her fasting periods. She also found it a bit hard on the stomach when taken without food.

-Anna from Fargo

FAQ

When should you take QuadraLean?

You should take Quadralean about 30 minutes before a main meal. This is to allow the fat loss ingredients to be absorbed quicker and bring your metabolism up a gear. If you do find it causes cramps, then it might be a healthy choice to take them immediately before eating.

Is RSP QuadraLean thermogenic?

Yes, RSP QuadraLean is thermogenic, with green tea and CLA being the main thermogenic ingredients. According to many dietitians, this could be the best way to deal with some more stubborn fat reserves.

Does QuadraLean have caffeine?

No, Quadralean doesn’t have caffeine, which is one of the main attractions for a lot of people. If you have any kind of sensitivity to stimulants or you tend to get a bit jittery after coffee, then this may be one ingredient to generally avoid.

Do We Recommend Rsp Nutrition Quadralean

Our conclusion is that we wouldn’t recommend this product to clients, mainly because quite a few users reported stomach cramps after taking it. While they are temporary, it’s just not a health issue you have to deal with.

We have found two fat burners that would likely be much more suitable.

  • For women, we would suggest trying out Leanbean. It also has no caffeine and seems to work much better to suppress your appetite.
  • And men should consider using PhenQ, which is often used by performance and professional athletes.

Neither of these has many reports of negative effects, so they should be a safer option.

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