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LeanFire XT Review - 18 Things You Need to Know

Leanfire XT promises that it’s different from other fat burners by considering your body’s “real needs” with its “unrivaled” Metabolic Mind Matrix. However, the company keeps its proprietary fat-burning blend a secret, which raised a red flag for our research team. On top of that, while looking into Leanfire XT’s ingredients, the team found a couple of components that could cause some serious side effects.

Does this fat-burner really stand apart from its competition? Here’s a summary of our research team’s findings to deliver you the bottom line on this thermogenic.

LeanFire XT can be purchased through their Official Site.

LeanFire XT Readers: Noom is offering our readers a risk-free trial, for a limited time. Click here for more information!

What Is LeanFire XT?

LeanFire XT is a dietary supplement that claims to help you burn fat. According to the manufacturer, it can be used by both men and women to enhance their energy levels and workout performance.

It comes with a variety of allegedly natural ingredients that the manufacturer claims to improve its thermogenic capabilities, but does the research back these claims?

How Did LeanFire XT Start?

LeanFire XT is a product of Force Factor LLC, a company that has been in existence since the year 2009.

The company won the prestigious GNC rising star award, less than a year since it hit the market, contributing to their dedication to providing effective and good quality supplements.

Other Force Factor products include:

  • Alpha King Fury
  • Test X180
  • Test X180 Ignite
  • Test X180 Ignite Pro
  • Test X180 Alpha
  • Test X180 Alpha Max
  • Test X180 Boost
  • LeanFire
  • LeanFire Ultimate
  • LeanFire with NextGen Slimvance
  • Leanfire Ultra
  • Ramp Up Anytime Energy

LeanFire XT Claims

LeanFire XT claims to be the ultimate solution for enhancing weightlifters, athletes, and fitness fanatics’ performance and increasing their energy levels. According to the manufacturer, LeanFire XT ingredients come with thermogenic properties to help you burn more fat and lose weight.

The manufacturers claim that this supplement contains a dynamic combination of ingredients that play an important role in increasing body temperature during workouts. This accelerates the fat-burning process while enhancing both focus and clarity. LeanFire XT is also claimed to contain some natural ingredients whose efficiency is said to be scientifically proven.


LeanFire XT Benefits

Benefits of LeanFire XT ingredients may include:

  • Antioxidant effects.
  • Research shows some ingredients that help promote weight loss.
  • Promotes fat burning.
  • Improves endurance.
  • Enhance focus and clarity.

Details On LeanFire XT And Weight Loss

Weight loss is a sensitive matter in which researchers and professional medical doctors are still studying. According to various researchers, the ideal weight loss program should help you lose more calories than you consume every day.

The question remains; do supplements actually help you lose weight? With the number of people seeking to lose weight increasing exponentially by the day, supplement manufacturers release new supplements every so often.

These supplements promise to help you lose weight within the shortest time possible. Many weight watchers are likely to fall for such products. It’s important to understand that no supplement can guarantee miraculous weight loss.

Even then, some of them are formulated with ingredients that aid fat burning, metabolism, digestion and make you feel fuller for longer. You can incorporate these into your workout and healthy diet journey to accelerate your results.

However, achieving weight loss isn’t an instant activity. It takes lots of discipline, commitment, and dedication. You have to replace unhealthy meals such as carbonated drinks, fast, and refined foods with healthy meals such as whole-grain foods, fruits, and vegetables.

Remember that drinking sufficient amounts of water not only helps you flush out toxins from the body, it also prolongs fullness and limits the amount of food you eat.


LeanFire XT Ingredients

LeanFire XT contains a series of ingredients which include:

  • Caffeine anhydrous
  • Green leaf tea extract
  • L-theanine
  • Cayenne pepper
  • Black pepper fruit extract
  • Yohimbine

Caffeine Anhydrous

Caffeine anhydrous is derived from the leaves and seeds of the coffee plant. It’s dry, highly concentrated, and contains stimulant properties.

Green Tea Leaf Extract

Green leaf tea extract is extracted from the leaves of green tea leaves. It contains powerful properties believed to enhance fat burning and promote weight loss, says research shared in Obesity Reviews.

Also, it comes with Epigallocatechin gallate (EGCG), and according to the journal Advances in Nutrition, there’s a “potential role of green tea extract (GTE) in fat metabolism and its influence on health and exercise performance.”


L-theanine is an amino acid. According to the Asia Pacific Journal of Clinical Nutrition, “L-theanine…has a significant effect on the general state of mental alertness.”

Cayenne Pepper

Cayenne pepper is a red natural herb believed to aid weight loss by enhancing metabolism, suppressing appetite, and rapid fat burning.  According to the journal Open Heart, “supplementation with capsiate (9 mg daily) for 12 weeks in a double-blind study was shown to decrease abdominal fat mass.”

Black Pepper

Black pepper is a spice that is popularly used in the kitchen. The journal Critical Reviews in Food Science and Nutrition noted the “free-radical scavenging activity of black pepper.”


Yohimbine is a compound extracted from the bark of Yohimbe plant. Research presented in the journal Research in Sports Medicine noted, “body fat significantly decreased in the yohimbine group after the supplementation protocol.”

Does LeanFire XT Work?

With numerous people struggling to manage their weight, you want to find a product to reach your goals. LeanFire XT contains some natural ingredients backed by research.

While it may work for some users, some individuals may post no tangible results at all. Experts advise that achieving weight loss is not an easy task. If you want to incorporate supplements in your weight loss journey, try finding one whose ingredients are formulated and proven to aid weight loss. Remember to combine the same with adequate exercises and a healthy balanced diet.

How to Use LeanFire XT

LeanFire XT comes in capsule form. The recommended daily dosage is one capsule first thing in the morning. Monitor how your body reacts to the same and increases the dosage to two capsules with no side effects. Take them at intervals, preferably one hour before meals. In case of stomach upset, try taking with food.

Potential LeanFire XT Side Effects

According to LeanFire XT reviews, some users experienced mild side effects, including

  • Light headedness
  • Mild Headaches

LeanFire XT Product Warnings

LeanFire XT, just like any other supplement, should not be taken without proper guidance from your doctor. Ensure to discuss the ingredients and any potential side effects that they may bring forth.

If you suffer from any health complications, inform your general practitioner before use. This supplement is recommended for adults of sound health. Keep away from children’s reach and don’t exceed the recommended dosage.

If you experience any severe symptoms after taking it, stop use immediately and consult your doctor. Pregnant women and breastfeeding mothers should refrain from using LeanFire XT. Research to understand the ingredients, benefits, and downsides.


Cost of Leanfire XT and Where to Buy LeanFire XT

You can buy LeanFire XT from the official website or reputable online retailers such as GNC. The cost of Leanfire XT on the official website is $69.99 for 60 capsules.


LeanFire XT Results

Every individual has varying body functions and needs. What works for you may not work for another person, and vice versa. It’s not easy to define a specific timeline since no two people display the same results within a given time.

However, we can categorically state that achieving your weight loss goals calls for various adjustments in the foods you eat and your exercise routine. Many people are afraid of exercising, especially from the gym, to fear getting intimidated by expert gym-goers.

It’s worth mentioning that you don’t actually have to exercise from the gym. A little goes a long way. For instance, take the stairs instead of the elevator. Walk briskly to work every once in a while, and eat healthy meals. Do this gradually, and within no time, your body will adjust fully to a healthy routine. This, coupled with LeanFire XT supplement, may accelerate your weight loss results.

What About Supplement Cycling?

Supplement cycling involves taking them for a stipulated number of days and discontinuing use for some time. Experts say that you shouldn’t use supplements for more than 8 weeks. Prolonged use can reduce its effectiveness. In this case, your body will need them in extra amounts to get the same effect. This is called tolerance.

Cycling will also encourage the body to function on its own. Under normal circumstances, for instance, your body should be able to burn fat without being assisted.

While taking supplements accelerates this activity, it can suppress the body’s ability to do the same. The disadvantage of suppression is that your body may take longer to readjust once you discontinue the supplements.

Any LeanFire XT Limitations

LeanFire XT contains stimulants such as caffeine. Green tea extract also contains caffeine. You may have to find an alternative if you are allergic or are under doctors’ orders to avoid stimulants.

Discontinue use three weeks before scheduled surgery or if you are recovering from one. Consult your doctor for a comprehensive ingredient analysis if you have any allergies.

Is LeanFire XT Safe?

This supplement contains a variety of supposedly natural ingredients. Some of them have undergone research and clinical studies and are known to aid weight loss and overall body health.

However, ensure to read the entire ingredient list before purchasing the supplement. Whenever in doubt, seek consultations from a professional expert.

LeanFire XT Alternatives

Numerous other supplements can aid fat burning and weight loss, as illustrated below.

Soluble Fiber

During digestion, soluble fiber transforms water into a gel. Studies show that it curbs appetite and enhances fat burning. It also minimizes the number of calories your body absorbs from the diet. Research indicates that people who consumed foods with sufficient amounts of fiber absorbed fewer calories and fat from their meals.

Possible side effects include; abdominal cramps, bloating, and flatulence.

Protein Powder

Protein is an essential nutrient in every diet. However, many people hardly get enough from their meals. Protein powders can nourish your body with the recommended amounts. Proteins suppress appetite, enhance metabolism, and increase rapid fat burning while preserving muscle mass. Studies indicate that protein powder inhibits hunger hormones while increasing fullness hormones. This way, you consume less food.

Possible side effects are that it may increase body fat.

Green Coffee Bean Extract

Green coffee bean extract is derived from unroasted coffee beans. Studies indicate that it contains chlorogenic acid, which minimizes carbohydrate metabolism in the gut. Research indicates that it may aid weight loss. However, more studies are required to ascertain its long-term effects on the same.

Possible side effects include; restlessness, insomnia, stomach upsets, and anxiety.

What Users Are Saying

“Best fat burner I have tested so far!”

“I’m still fat.”

“This is the only diet pill that actually curbs my appetite and doesn’t give me the jitters.”

Bottom Line

The Bottom Line on LeanFire XT

Now the moment you’ve been waiting for. This is our bottom line on LeanFire XT. It’s nice to see that this formula is sold with a money-back guarantee. The green tea and caffeine will undoubtedly get your metabolic rate rolling. Taking all this into consideration, this isn’t a bad choice.

While there are benefits of Leanfire XT, there are always alternatives based on your individual needs and goals. That’s why it is important to choose a weight-loss program that is both clinically-tested and customized.

One of the weight-loss programs we like the most is Noom. Noom offers personalized meal plans, human coaching, support groups, and so much more, all within an easy-to-use app you can access from anywhere.

Also, the team behind Noom is offering a free trial offer to all Dietspotlight readers, which is a pretty sweet deal.

Learn More About Noom »
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LeanFire XT

What are the ingredients in LeanFire XT?

LeanFire XT ingredients are green tea leaf extract, L-carnitine, cayenne pepper fruit extract, BioPerine, L-theanine, caffeine, TeaCrine, DMAE, Advantra Z and yohimbine HCl.

Does LeanFire XT work?

The metabolic boost from caffeine and the thermogenic effect of Advantra Z could help with weight loss.

How much does LeanFire cost?

LeanFire XT costs $69.99 at GNC.

How should I take LeanFire XT?

You are supposed to take one capsule in the morning on an empty stomach. After assessing tolerance, likely to the stimulants, you can up that to a maximum of two capsules a day.

Who are the makers of LeanFire XT?

The makers of LeanFire XT is Force Factor.

Where can I buy LeanFire XT?

LeanFire XT can be purchased using their Official Site.

If I am a coffee drinker, can I still take LeanFire XT?

Since LeanFire XT contains caffeine, adding coffee may increase the likelihood of side effects.

What is LeanFire XT?

LeanFire XT is a health supplement that prioritizes losing weight quickly and efficiently. It burns fat by increasing metabolism and limiting hunger, while also providing energy.

What are the LeanFire XT ingredients?

TheaCrine, caffeine, L-Theanine, green tea leaf extract, cayenne pepper fruit extract, Bioperine, L-Carnitine, Advantra Z, Yohimbine Hcl, and DMAE are the ingredients that comprise LeanFire XT.

Are there any LeanFire XT side effects?

Among the potential side effects for LeanFire XT, there is an increased chance for headaches, anxiety, higher blood pressure, mild shaking, nausea, and lightheartedness.

What LeanFire XT results can I expect?

Possible results from using LeanFire XT are efficient fat-burning, an increase in energy and stamina, and an improved mental focus by minimizing anxiety and stress.

21 LeanFire XT Reviews

  • So far so good!
    Heather Peavey (Verified Purchase)

    Today is my 2nd day. Yesterday was great! Lots of energy. Took 30 minutes before breakfast and dinner. I knew I would be up late. Slept fine and no side effects. Woke up feeling great and motivated. Went for long early morning walk. Go me!

    • LashontaB

      My boyfriend and I have been taking LeanFire for a week now and we have seen great reaults! We’ve been jogging 6 miles 4 days out the week. It has definitely curved our appetite but also makes us hungry when we do eat so we make sure we eat a big hearty meal for breakfast and lunch. And yes, it definitely helps us focus on whatever we’re doing at that moment we love it!! As far as weight loss, my boyfriend is building more muscle (which is what he wanted anyway), and I have lost 5 pounds! Yay me!! Everyone’s body is different so I don’t think people should write it off just because someone didn’t have any good results. All you can do is try it. If it doesn’t work for you, sorry, try something else. If it does we’ll freaking awesome!!

      We can say it definitely makes you go to the bathroom! We have been drinking a lot more water so we’re using the bathroom at least 3 times per day getting flushed out. We will be purchasing more of LeanFire in the near future. Good luck everyone with your weight loss journey.

  • Maria (Verified Purchase)

    I have been using it about 2 weeks I see a small change in my body 🙁 . It dose give you energy to the roof and no crash i like that .. but when they say it helps u lose weight I guess it works different in every one..

    • Beverly Payne

      the energy level is a wow I work two jobs and it work , and weight loss also give a try.

  • Not effective for high caffeine consumers
    Carl (Verified Purchase)

    I tried this product based solely on the hourly advertisements on Pandora and used it for two months. As background, I already consume large amounts of caffeine, including 4 cups of black tea and 2 Diet Mt. Dews daily, so my caffeine tolerance is higher than average. Taking 2 pills per day made no noticeable difference, either in fat burning, weight loss, heart rate, or energy. In fact, I can take a pill and then take a nap 2 hours later without a problem. I do not recommend this product for those with high caffeine tolerances.

  • Precautions

    So in the precautions section it says not to take with alcohol, driving or using heavy machinery. How am I supposed to take this product and not be able to drive? Definitely a bummer that I can’t take this product cause of that. And I haven’t tried the product because of the precautions. My job requires for me to drive and I’m not going to risk anything happening.

  • Mixing powder into foods to take.
    Patty (Verified Purchase)

    Is it ok to mix into yogurt or oatmeal ? I know it tastes disgusting, but I was a bit afraid of jumping right in. Does anyone else open capsules & mix with anything?

  • Weight loss

    Does it help you lose weight ?

  • I didnt like it
    Jessica (Verified Purchase)

    I started taking this product five days ago and I feel like crap, it doesn’t give me any energy instead it makes me feel really tired, dizzy, my appetite has gotten worse I have really bad headaches I was fine without this, I’m stopping this

    • Victoria (Editor)

      Hi. When in doubt, it is always a good idea to stop taking a supplement if it is making you feel bad, especially if the side effects are affecting your daily life.

      It’s interesting that you felt tired. Leanfire XT has several stimulants. These could be where the headaches and dizziness came from.

      Do you feel better now that you stopped?

    • Tanicha V Madrigal

      Are you active? Leanfire has worked great for me. I’m constantly on the run and lost an additional 2 lbs a week.

  • Im going to take a break from this product
    Need to look good (Verified Purchase)

    I tried this product for 3 days day 1 I felt so tired 3 hours after taking next day took 1 pill as soon as I woke up showered got dress and ready for my day are breakfast then went for a fast pace walk after again felt really tired. Day 3 took one again but after I got showered and had eaten breakfast then went and did some family things as it was Memorial Day then went to lunch with my family after lunch I become very ill throwing up and a bad headache spent two and a half days in bed. I will try this again but I think it’s best to wait a week and try again.

    • Victoria (Editor)

      Hey. One pill supplies 150mg of caffeine. That can be too much for some people. When you took two that increased to 300mg of caffeine – or about three cups of coffee, according to the Leanfire XT label.

      When you tried it again, did you have the same reaction?

  • I didnt like how it made me feel
    Virna Kamakaloy (Verified Purchase)

    From the moment I received the pills, I started taking it on an empty stomach,and eating within the next 20 min. Took it for 3 days without any side effects other than heart palpitations, I figured it was because of the caffeine. I stopped taking out for a week and started again today. I took a pill this am on an empty stomach. I ate 2 eggs and a toast. No coffee, but dranked a fruit smoothie. By the time I had finished the smoothie I got such unbearable pain on the back on my head that run all the way to the front. I started shaking, cold sweating with chills, I got nauseous and it send me to the bathroom. It’s been 10 hrs since I took it and my brain still hurts. I don’t think I’ll be taking it anymore.

  • Is it safe?
    Javaris Jones

    I am a diabetic and I was wondering it safe for diabetes?

  • Javaris (Verified Purchase)

    Is it good for people with diabetes and does it make you go to the bathroom?

    • soned

      I have seen this question asked twice now with no reply!!
      Also, what about high blood pressure.
      I am a coffee drinker

    • Beverly Payne

      Leave a comment…yes I am diabetic and yes makes you use the restroom ,but that’s good because metformin also does to this flush out the bad. I am an GNC employee

  • Too many side effects
    Casey (Verified Purchase)

    I just received the Product on Saturday I took my 1st pill on Sunday it made me extremely nauseous dizzy Period no energy to do anything I actually thought I was coming down with the flu or something period I took my 2nd pill about 3:30 p.m. and was up all night long still not putting 2 and 2 together I tried another pill Monday morning within an hour I was extremely nauseous dizzy and could not function Period I do not think I will be continuing this product as it has too many side effects for me I am a major coffee drinker but did not drink coffee as I could not while taking these supplements I was too sick . Not worth all the side effects

    • Victoria (Editor)

      Hi Casey! Were sorry that you had a bad experience with LeanFire XT. Have you researched other similar products? You should check out

      • Shakirah

        What about for nursing mothers? My daughter is 2 and I need something for energy Thanks!