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The Underground Fat Burner Review – The Pros & Cons

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You may have gained weight recently may be due to the forced COVID 19 quarantine. And your efforts to lose weight through exercise and diet plans produce discouraging weight loss results. Do your attempts to eat less lead you to more cravings and more calorie intake?

Fortunately, the Underground Fat Burner dietary supplement may give you impressive fat loss results. And without following any strict diet plan and exercises. But, here is a review of the dietary supplement and fat loss manual for you to decide if it will give you the best weight loss results.

What is the Underground Fat Burner Program?

Ostensibly, the Underground Fat Burner is a weight loss formula (proprietary blend) that claims to help you burn fat. Variously, it’s a pineapple mango-flavored weight loss superfood designed to subdue your appetite. Plus, it may help you overcome any runaway appetite pattern fast.

Reportedly, you may lose 10 to 50 pounds in a short time. The dietary supplement mainly uses Caffeine, herbal extracts, and fiber.

Apparently, the weight-loss food may help decrease your appetite patterns. By dealing with food appetite, and combined with mild exercise, you can maintain a lean shape, burn fat, and reduce weight.The Underground Fat Burner Program

Creator of the Underground Fat Loss Manual Book

Apparently, Matt Marshall wrote the Underground Fat Loss Manual eBook. And he describes it as “a controversial but wildly popular book on getting lean quickly. He lives in Michigan with his wife and two daughters. During the coronavirus lockdown, Matt gained a lot of body weight.

Apparently, Matt boasts over 25 years of experience in the fitness industry. So, he based his program on dietary supplements and exercise.

In essence, he claims to deal with the root cause of weight loss, which is the appetite in your diet plan. Specifically, the ingredients in the Underground Fat Burner supplement increase metabolism and suppress the appetite.

And it’s backed by science since you need to eat less to lose weight. By so doing, you create a calorific deficit that induces fat burning leading to weight loss.

How the Underground Fat Burner Program by Matt Marshall Works?

Apparently, you scoop one serving after you open the bottle. Then, put it into a glass of water, stir briskly and drink it. In a short time, you experience three things.

1.A slight bit of heat on your lips and mouth. Reportedly, this is due to the strong dose of calorie burn, one of the patented ingredients inside the fat loss manual.

2.Secondly, you get increased energy and alertness. As a result, you feel like you want to knock things over. Essentially, you get more motivated to exercise.

3.Finally, you’ll not feel hungry. Indeed, you may only eat as a habit, but you will eventually stop constant feeding. Therefore, you also avoid junk foods in your diet.

To sum it up, about 4 hours after your last meal, your body enters into a fat burning mode until you eat again.

The Science Behind the Underground Fat Burner Dietary Supplement

In a word, fat burners help you limit your appetite and increase your rate of metabolism. As a result, your energy increases as more stored fat gets burned.

Specifically, the reduced food appetite prevents overeating and reduces your cravings for junk foods. In the end, you reduce your calorie input, and this creates a calorie deficit.

Unfortunately, fat burners must be taken together with exercise and regular workouts to be effective. Therefore, it’s necessary to develop a workout and diet plan before you take fat burners. In the end, your weight loss journey will be a success with exercise and patience.

Ingredients of the Underground Fat Burner Program

The Underground Fat Burner

Reportedly, the product contains the following patented blend of ingredients. Some will supposedly boost your fullness hormones to control your food appetite pattern.

1.Fibersol. Supposedly, Fibersol increases two hormones- peptide YY (PYY) and glucose-like peptide-1 (GLP-1). Basically, the two fullness hormones make you feel fuller for a longer time. So, you avoid eating, leading to weight loss as your body remains in fat burning mode.

Other benefits of Fibersol include:

  • Improves intestinal regularity
  • Increases beneficial gut bacteria
  • Lowers serum triglycerides and visceral fat
  • May control fullness
  • It increases the metabolism of stored fat

2.L-Carnitine L-Tartrate. This is an amino acid that may help transport fatty acids into the mitochondria. Here, the fatty acids get burned for energy.

More importantly, the creator uses L-Carnitine L-Tartrate, which gets absorbed more easily by the body. Therefore, Fibersol makes you eat less, while Carnitine supports fat burning at the individual cellular level.

3.L-Tyrosine. Basically, L-Tyrosine might help regulate mood, improve alertness, attention, and focus.

4.Chromax (Chromium Picolinate). Essentially, this patented ingredient may regulate blood sugar and help to process carbohydrates.

In a word, the regulation of chromium supports metabolism to reduce hunger and cravings. So, you’ll eat less, which prevents weight gain.

5.Garcinia Cambogia Extract. Allegedly, this fruit extract ingredient helps to reduce appetite and make you feel full.

In fact, clinical studies show that taking Garcinia Cambogia in your diet leads to weight loss. Above all, researchers found that Garcinia Cambogia contained hydroxy citric acid (HCA) that could help you lose weight.

6.Caffeine Anhydrous. Reportedly, Caffeine may act as a powerful fat burning ingredient. In essence, Caffeine helps break down fats in body cells (lipolysis). Plus, Caffeine improves heat production (thermogenesis) that helps burn more fat. On top of it, Caffeine helps preserve your muscles to avoid looking flat.

7.Forskolin Root Extract. Essentially, it helps stimulate the release of stored fat from fat cells, which increases lipolysis (fat burning).

8.CaloriBurn Grains of Paradise. Supposedly, this ingredient is an ancient spice of the ginger family. And, studies show it may activate BAT (Brown Adipose Tissue), a type of fat cell which is metabolically active tissue. In the end, BAT activation helps burn more calories as it helps in optimizing body composition.

9.Capsimax (Cayenne Pepper Fruit Extract). This ingredient is from capsaicinoids, a product of red hot chili peppers, and assists fat burning. As a result, it improves metabolism, generates heat, and fat burning to boost energy.

10.Bioperine (Black Pepper Extract). The ingredient is said to increase absorption rates by as much as 2,000%.

The Underground Fat Burner Dose Per Serving

Essentially, each serving of the Underground Fat Burner program contains doses of the following ingredients.

  • A 2,500 mg dose of Fibersol.
  • Plus, a 750 mg dose of L-Carnitine L-Tartrate.
  • And the 250mg dose of L-Tyrosine.
  • Add 250mg of Garcinia Extract dose.
  • Then, a 225mg dose of Caffeine Anhydrous (the equivalent of a strong cup of coffee).
  • Mixed with 150mg of Green Coffee Bean Extract dose.
  • With a 100mg dose of N0Phenethyl-Dimethylamine Citrate.
  • And, a 100mg Coleus Forskohlii Extract dose.
  • Top up with a 50mg dose of Gamma-Butyrobetaine Hydrochloride (GBB).
  • Plus, a 40mg dose of Grains of Paradise Extract/CaloriBurnGP).
  • Not forgetting a 25mg of Capsimax dose.
  • And a 5mg dose of Bioperine to increase the absorption rate.The Underground Fat Burner Product

Benefits of the Underground Fat Burner Program

Using the supplement may give you the benefits below.

1.To begin with, you accelerate fat burning and enhance your metabolic rate.

2.Then, it boosts your mood, raises your motivation, and improves your focus.

3.Additionally, it increases your energy levels, you exercise more, and your muscle mass gets preserved for a healthy look.

4.Essentially, you get a shortcut to a healthy body.

5.Encouragingly, you might enjoy the freedom from a runaway appetite pattern.

6.And, you may eat the foods you like without fear.

Frequently Asked Questions During the Underground Fat Burner Review

When conducting our review, we found many customer reviews. And, almost every review had users with some of the following questions about the program content.

Will the Underground Fat Burner plan work for me?

Yes. The Underground Fat Burner will work for everyone with some pounds to lose or the overweight. And especially if a big food appetite holds you from a healthy weight. In fact, this review found it’s no secret that the product works.

On the flip side, our review found that it’s not suitable for the under 18 years. Plus, the pregnant, the ones with a medical condition, and those taking any medication.

Furthermore, anyone with conditions like high blood pressure, heart, kidney, thyroid, and psychiatric disease shouldn’t take it. Further still, those with anxiety, depression, seizure disorders, or stroke should avoid it also.

How much Underground Fat Burner supplement do I take per day?

Supposedly, the correct dose of the supplements depends on factors like weight and activity level. It may take some time and trial-and-error to find what’s best for you.

Basically, you start with half of one scoop in 8 ounces of water to assess your tolerance. Progressively, reach the standard dose of one full scoop in 8 ounces of water.

And to prolong the fat burning and low appetite mode, you may take a second dose in the afternoon. But, don’t exceed 2 doses of the fat burner in 24 hours.

Besides, you drink the first dose in the morning and on an empty stomach. And take it 3-4 hours before bedtime.

How many bottles of the Underground Fat Burner should I order?

Specifically, you take it consistently for at least 60-90 days for best results. So, you need 3-6 bottles to attain your desired weight and remain at that goal level.

Therefore, you may take advantage of the 3 bottles or the 6 bottles discount packages. Equally important, such packages offer special pricing for savings.

What’s the pricing of the Underground Fat Burner program?

The Underground Fat Burner Plan price is average if you consider the things it offers to you. But, the price gets cheaper if you buy the 6 bottles option to last you for 6 months or 180 days.

Still, you get a discounted price for the Underground Fat Loss Manual, so the price is low. Fortunately, you get free shipping and handling if you buy from the official website within the United States.

Is the Underground Fat Burner supplement safe?

Apparently, the Underground Fat Burner diet supplement is 100% safe and effective with no reported adverse side effects. Still, the supplement manufacturer, James Klein, holds over 20 years of industry experience.

And it’s manufactured in the USA in an FDA-approved and GMP (good manufacturing practices) certified company. Allegedly, the product is manufactured under the most sterile, strict, and precise standards. Reportedly, all ingredients are tested for purity when they arrive in the manufacturing facility.

Is the Underground Fat Burner dietary supplement legit? What are users saying about it?

To sum it up, during our reviews, users were raving about it. They said it helped in their weight loss journey. And some achieved their dream body weight with no extra effort.

Furthermore, you may eat and drink anything as long as you don’t exceed your calorie limit. Fortunately, users said it didn’t have many serious side effects.

However, some sites will use the “Fear Factor” in their headlines, saying it’s a scam. Ultimately, such scam sites shouldn’t sway you from your weight loss goal.

In other words, after you search for the Underground Fat Burner supplement in Google or another search engine, these sites pop up with scam titles. Ignore them.

How will the Underground Fat Burner product be shipped to me, and how fast?

Encouragingly, if you order from the official website, they ship your order to your home. Supposedly, they use USPS shipping services.

And if you’re within the US or Canada, your order is shipped within 2 to 3 business days. Unfortunately, there’s currently no shipping to other countries due to the COVID-19 pandemic.

Will I be billed anything else after I order the Underground Fat Burner or manual?

Fortunately, you pay a one-time payment only. Essentially, the program isn’t an auto-ship of whatever kind.

And there are no hidden charges or unauthorized auto-renewal. Plus, the fat burner product has no subscription charges. Remember, you get a 60-day money-back guarantee.

What if the Underground Fat Burner supplement doesn’t work for me?

Essentially, the creator guarantees that it works from your first dose. More still, you see results within a few weeks. Additionally, you gain appetite control, less hunger, and more motivation. Effectively, you lose weight, gain confidence and improve your moods.

Above all, if it doesn’t work, you get 100% money back within 60 days. And with no questions asked. So, you only contact the vendor through the email address on the official site.

Does the Underground Fat Burner have any side effects?

Reportedly, some users experienced the following reactions after taking the ingredients.

1.Stomach upsets and vomiting


3.Diarrhea and nausea

4.Irritable bowel movements

5.Mood swings

6.Irritability and aggressiveness


8.Lack of sleep. It contains stimulants like Caffeine that may change your sleeping patterns and increase your heart rate.

9.Increases blood pressure due to enhanced metabolism

10.May cause death in rare cases

Warnings/ Cautions about the Underground Fat Burner supplements

Of note, the information provided in the program should help you make informed decisions. In a word, you need to heed the warnings below.

1.Firstly, the Underground Fat Burner isn’t a substitute for any treatment.

2.Secondly, you need to consult your doctor if you have a medical condition or taking medication before taking the supplements.

3.Next, the website isn’t a substitute for any medical advice.

4.Above all, the product isn’t intended to diagnose, cure, prevent, or treat any disease.

5.Lastly, the Underground Fat Burner statements haven’t been evaluated by the Food and Drug Administration.The Underground Fat Burner Testimonial

What does the Underground Fat Loss Manual contain?

Interestingly, the Underground Fat Loss Manual uses unconventional methods. Apparently, you’ll use alcohol to accelerate fat-burning and spark your weight loss.

In summary, the Underground Fat Loss Manual consists of over 100 pages of weight loss tips. So, the author calls it “Underground” Fat Burner since it’s banned for some retailers.

Also, it contains some secrets the weight loss industry never reveals to you. Basically, it has a 4-week program spread into small chunks.

Additionally, it contains some extra free books for advanced weight loss tips. Finally, there’s a section about alcohol, nicotine gum, candy, and other unlikely factors that may boost your weight loss. ​

Final Thoughts

In essence, our Underground Fat Burner program and fat loss manual review show its tips may be effective in burning fat. Essentially, it follows the bottom line and root cause of weight gain–appetite. Therefore, consumers who followed the guidelines reduced their food appetite and prolonged their fat burning mode. Additionally, they got a mood boost and eventually lost their body weight.

Plus, you get a 100% 60-day money-back guarantee. So, you test the supplements and the product risk-free. But, it’s only suitable for adults over 18 years and people without a medical condition. Plus, those lactating or pregnant may avoid it too.

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Has ingredients that accelerate fat burning, control appetite, and boost digestion – three proven ways to lose weight.
And the ingredients in this formula are clinically approved, having passed many tests.
Plus, you may crush your appetite and overcome the “Runaway Appetite Pattern” quickly.
Specifically, some ingredients accelerate fat burning and heighten metabolism.
Then, the program boosts your mood, kick starts your motivation and sharpens your focus.
Eventually, it raises your energy levels, encourages workouts, and preserves your body muscle mass.
And it ultimately “shortcuts” your journey to the body you’ve always wanted.
Essentially, the ingredients used in the Underground Fat Burner weight loss supplement are safe to use. And they don’t have adverse side effects.


Unfortunately, there’s no scientific evidence that the Underground Fat Burner completed any clinical trials.
And, the author hasn’t published the Underground Fat Burner research results in any peer-reviewed journal to back his claims.
Plus, the Underground Fat Burner supplement is only available online.
Additionally, the creator doesn’t list the inactive ingredients upfront. Therefore, he omits any sweeteners, additives, natural or artificial flavors in the formula.
Finally, he doesn’t list any use of binders, preservatives, fillers, and other ingredients are in the dietary supplement.

Summary: The Underground Fat Burner dietary supplement promises to help you burn body fat faster and helps you lose weight in a few weeks. And, you get a fat loss manual too. We look at what it is, its ingredients, the science behind it, and how it works. We look at FAQs from several reviews, and finally give you its pros and cons.

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