What Are The Best Thermogenic Fat Burners For Weight Loss in 2017?

So you’re making wise choices when it comes to your dinner plate, and going all out in the gym so you can kiss goodbye to those last few stubborn pounds. But still they don’t seem to shift.

Does this sound familiar? I know it certainly does to me. Why is it so easy to put the weight on, but twice as hard to get rid of it? On a related note, why do I still feel like I have massive thunder thighs?!

The wonders of a plateau, low metabolism, or perhaps genetics, play a big part in delaying weight and fat loss goals. Sometimes you just need a little extra support to kick start your BMI and throw the scales into a downward spiral.

Fat burner supplements are becoming increasingly popular nowadays as we all try to strive to improve weight loss efficiency and fat loss results; it’s no wonder the market is full of options.

If you are feeling a little overwhelmed by all of the choice out there, let me do the hard work for you and find out what are the best thermogenic fat burners for weight loss in 2017. Read on and I’ll fill you in on this hot topic.

What Does Thermogenesis Mean? How Does it Work?

The definition of thermogenesis is:

“The production of heat especially in a human or animal body”

Even though the definition refers to heat, it really all boils down to energy. It’s fairly safe to acknowledge that energy is not made or broken, in fact energy is only converted, moved and stored in the human body.

We get the energy we need from the food and drink we consume in our everyday diets, and will come as no surprise to most that it’s the unit of measurement is the calorie.

When we eat, the food goes through the process of metabolism which transfers the calories directly into energy. Any surplus amounts are saved for later. When energy is created, it generates heat through the process of thermogenesis.

As your body generates more heat, it forces your metabolism to work harder and increases the energy transfer rate; so inevitably you’ll burn more calories. Hopefully the term “burning calories” now makes a whole lot of sense

There are several factors which activate thermogenesis in your body:

Exercise Associated Thermogenesis

This process relates to the energy used for any type of exercise associated activity.

When you are at the gym, it’s drummed into you how important it is to warm up before your workouts. Quite frankly, cold muscles just don’t cut it when it comes to exercise as they need to be warm to work properly and prevent injury.

Therefore, your body generates heat through your energy to raise body temperature and warm up the powerhouse of your body, thus starting thermogenesis.

Naturally, the harder you work, the higher your metabolism raises to compensate and your temperature will rise.

Diet Induced Thermogenesis (DIT)

Diet induced thermogenesis denotes the increase in energy expenditure that occurs in response to food ingestion (source).

Have you ever felt all hot and sweaty after eating a big meal? Well, that

will be the energy working away to digest and process all the food you’ve consumed.

Non Exercise Activity Thermogenesis (NEAT)

Non exercise activity thermogenesis is the energy expended during everything we do that is not sleeping, eating or sports-like exercise. (source)

Basically this is the energy used in your normal everyday activities like, walking, laundry, cleaning the yard etc.

How Do Thermogenics Work?

It’s no secret every diet conscious person on the planet knows the physics behind weight loss.

If your calorie use is greater than your calories consumed, inevitably this creates a deficit, which should in turn, should lead to weight loss. The operative word being ‘should’. Of course, many dieters are all too familiar with the constant battle involved.

You all know how to drive weight loss down through a healthy eating program and an active lifestyle, but taking a supplement could make it a little easier to achieve your burning ambition, so to speak.

Some of the benefits to thermogenic fat burners are:

  • Increased metabolic rate
  • Higher energy levels
  • More fat loss
  • Better exercise performance
  • Suppress appetite
  • More efficient weight loss


The primary function of a fat burner is to increase base metabolic rates in the body which in turn increase the amount of calories you burn.

One trial looked into the effects of thermogenic supplements on resting metabolic rates. Participants underwent two testing sessions where they were given either a dietary supplement or a placebo.

The alternative supplement was taken the following session and the tests were compared between the paired samples. Results showed a significant increase in resting metabolic rate for the thermogenic supplement in comparison to the placebo. (source)

Energy and Performance

Fat burners contain stimulant ingredients so it’s only natural this should help give you the boost you need to help you feel more energized.

Obviously the knock on effect of having more energy is that it will help you up your intensity when working out. This could be a bonus point when you want to reach peak performance and max out those gains in the gym.

Weight Loss

It should be obvious that a combination of fat loss, increased metabolism and the energy to train more efficiently all help towards reducing weight without the loss of muscle mass.

It’s important to remember, however, that even though the benefits look good on paper, you can’t just sit back and relax when taking this supplement. You still need to put in the work to ensure you achieve the best results.

Ingredients of Thermogenic Supplements

When you start to read through the list of ingredients on the back of a

fat burner, you’re likely to find a multitude of exotic sounding fruits and herbs which sounds more like a tropical shopping list.

This is why I thought I would give you the lowdown on a few of the most common components you might come across.

Green Tea Extract

Green tea extract has to be one of the most clinically researched fat burning supplements by far. Not only is it packed full of powerful antioxidants which are beneficial to health, it also has many thermogenic factors which contribute to weight loss, such as:

  • It boosts metabolism
  • Increases fat burning
  • It can help you with fat loss
  • Reduces appetite
  • Can help reduce fat in specific areas

Green tea contains a catechin called EGCG (epigallocatechin gallate), which does a lot of the hard work. In addition, don’t forget caffeine, which is also a powerful stimulant. Between the two they increase the rate of your metabolism which enhances thermogenesis and speeds up weight loss.

One study investigated the thermogenic effects of a combination of green tea and caffeine on metabolism. It was discovered that the energy expenditure increased by 4.6% in a 24 hour period. Such levels are sufficient to prevent weight gain. It was concluded that when consumed as part of a healthy diet and exercise regime, the two may provide benefits for weight control. (source)

In addition, the compounds in green tea extract have the potential to enhance the hormone in the body which instructs the fat cells to break down (source).

This leads to the release of fat into the blood where it can be used as energy. Overall there is an increase in fat oxidation in the body which basically means fat loss. (source)

Furthermore, studies have reported that green tea could be particularly beneficial for fat loss in stubborn areas like the abdomen (source).

Caffeine (Anhydrous)

If you mention the word caffeine, the first thing that springs to mind is most likely to be coffee, and that’s because it’s heavily associated with this extremely popular beverage. Caffeine is a powerful stimulant and high up there on the list when it comes to thermogenic properties.

Caffeine benefits include:

  • Boosts metabolism
  • Improve energy levels
  • Helps you burn fat
  • Improves performance
  • Improves concentration and focus

Caffeine is found in almost every fat burning supplement. It’s a stimulant for the central nervous system which, when consumed into the bloodstream, follows similar principles to green tea. It also gives out signals which activate various mood and energy enhancers in the body. (source)

Research has shown that a single dose of caffeine can increase energy expenditure by up to an additional 150 calories, which reinforces that caffeine can have significant influence on energy balance and thermogenesis. (source)

Caffeine also has the potential to improve performance when exercising. Various studies have been carried out to examine the effects of perceived exertion when consuming caffeine. When reported in comparison to the placebo, caffeine reduced perceived exertion by 5.6% and actually improved exercise performance by 11.2%. (source)

IF you can increase your intensity in a work out, you will be working harder which inevitably leads to increased thermogenesis and more of that all-important calorie burn.

Caffeine anhydrous is something you might find on the back of that supplement tub. It basically means caffeine without the water and has gone through a synthetic process which dehydrates the caffeine to allow its use in pills.

Garcinia Cambogia

Garcinia Cambogia is a kind of fruit that looks like a mini pumpkin. It’s also known as the Malabar tamarind. Garcinia Cambogia can be found in Asia. The all important ingredient in this fruity guy is something called hydroxycitric acid (HCA).

Some of the benefits claimed include:

  • Reduced appetite or cravings
  • Lower cholesterol
  • Regulate blood sugar levels

Now, the jury is out when it comes to evidence supporting this one, but as it could be on your list of ingredients, it’s only right to let you know a little about it.

Its main intended use is for the potential to suppress appetite. I’m sure everyone trying to control their weight knows how difficult it is to cut those calories when your stomach is grumbling way before lunch.

According to official research, HCA-SX has been shown to reduce appetite, inhibit fat synthesis and decrease body weight without stimulating the central nervous system. (source)

In fact, an 8 week trial looked into the effects of HCA and weight loss. The results produced a reduction of BMI in the volunteers between 5-6% which concluded that in optimal doses it could act as an effective and safe weight-loss formula that can facilitate a reduction in excess body weight and BMI. (source)

However, another study controversially suggested different results. Garcinia cambogia was trialled for its potential as an anti-obesity agent and it failed to produce significant weight loss and fat loss in comparison with the placebo. (source)


Glucomannan is a highly water soluble type of dietary fiber which is mainly used in fat burning supplements to assist appetite control.

Research suggests this fiber has an extraordinary high water holding capacity forming highly viscous solutions when dissolved in water. (source)

This basically means it expands in water, so when consuming this as part of a fat burning supplement it should give you satiety (feeling of being full), hopefully curbing your appetite and the risk of snacking.

One trial was conducted over an eight week period into the effects of glucomannan on obese patients. Each volunteer was told not to change their dietary habits or exercise routines during this time.

The results concluded that average weight loss in those administered glucomannan was 5.5lbs. (source)

Glucomannan is considered a safe ingredient, but it has been known in rare cases to cause mild side effects in some people such as bloating or diarrhea.

Side Effects Of Thermogenic Supplements

Supplements like fat burners are normally considered safe to take by healthy adults (source) but there are potential side effects. The side effects are not considered life threatening, however everyone’s reaction could be different. That’s why it’s important to be aware of the potential downfalls.

Give Yourself a Break

Thermogenics are not designed for long term use. They start to lose their effectiveness the longer you use them. This is because your body starts to build up resistance. If you feel you need to try them again, it’s worth giving your body a break before starting another cycle.

Caffeine Overload

Fat burners contain lots of ingredients with stimulant properties like caffeine in order to increase metabolism and thermogenesis to help burn those calories.

The US Food and Drug Administration (FDA) has cited that 400 milligrams of coffee a day - or around 4 to 5 cups of coffee - is not considered dangerous for adults. (source)

However, it’s not just your cup of coffee that warrants consideration. There’s an increasing trend of adding caffeine to foods too (source). If you add a fat burner supplement into the equation, you could potentially be consuming quite a large amount of caffeine per day.

The end result could be side effects such as a disturbed sleep pattern or insomnia, restlessness, anxiety and increased heart rate or palpitations.


Thermogenic fat burner supplements are designed to increase thermogenesis. Of course this will also raise your body temperature. If your body temperature rises, chances are you will sweat more, leading to water loss.

This is particular relevant when exercising as your intensity levels will inevitably cause you to sweat in excess.

Symptoms of dehydration include headaches, fatigue, thirst, dry mouth and or dizziness.

We all know how important it is to include drinking water in our everyday lives, but this becomes even more vital when you are taking fat burners. Besides, water is also known as an effective natural fat burner, so it all contributes to the goal of weight loss.

What Are The Best Thermogenic Fat Burners For Weight Loss in 2017?

As there are so many different supplements out there, trying to find the right one could get your temperature rising in frustration! So I’ve taken a look at what’s hot and what’s not on the market and come up with five which I think could work for most people.



Our rating

Old school labs “vintage burn” supplement uses a total of 9 premium fat burning ingredients to create their unique thermogenic formula.

It’s designed to help burn fat for energy while preserving muscle. It could also improve mental focus, mood and pre-workout energy to help you manage your goals effectively.

All ingredients are free from artificial colours and flavors and have been third party tested for purity and potency.

This supplement is also gluten free and suitable for vegans and vegetarians which makes it a great choice for many people with intolerances.

I just love the fact everything is clearly listed on the label and you can see that there are no fillers whatsoever. You can rest easy knowing exactly what you are putting in your body.

This supplement is a good quality product, made from a long standing reputable company, it’s just a shame the expensive price tag could leave you a little hot under the collar.


  • 330 mg green tea leaf extract
  • 270 mg green coffee bean extract
  • 200 mg raspberry ketones
  • 150 mg caffeine
  • Gluten free
  • Vegetarian and vegan friendly
  • Non GMO
  • No artificial colors or flavors
  • Third party tested for purity and quality
  • 60 day supply
  • Made in USA


  • Expensive



Our rating

Sheer Strength’s supplement has been made with science in mind, combining 7 ingredients that complement each other for their ability to cut fat while preserving muscle and enhancing cognitive function.

I love the fact that only 100% natural metabolism enhancing ingredients have been used in this product. It’s completely non GMO and gluten free too which makes it suitable for a lot of dietary requirements.

However, many people didn’t feel it suppressed their appetite as much as they had hoped.

It also has a potent dose of caffeine so it’s worth being mindful if you already suffer from insomnia or if you’re a bit of a coffee junkie. It could end up giving you a few more sleepless nights if taken too late in the day.


  • 300 mg green tea extract
  • 300 mg rhodiola rosea
  • 250 mg coleus forskohlii extract
  • 200 mg caffeine
  • Non GMO
  • Gluten free
  • Third party tested for purity and quality
  • Made in USA
  • 100% natural ingredients
  • Good price


  • Some users disappointed with appetite suppressing strength



Our rating

The genius brand has developed a supplement with a 2 in 1 formula which contains an all star line up of 9 effective ingredients for not only appetite control and fat loss but also to promotecognitive health.

Their philosophy of clean energy is achieved by using natural thermogenesis enhancers, such as ashwagandha and teacrine which are great alternatives to synthetic caffeine.

It’s a pure formula with no vague proprietary blends or fillers. The labelling is clear and transparent label. It’s always reassuring to know exactly what you are getting.

Downside could be that its top end expensive on the price scale, so for those looking at second cycles it could end up burning your wallet.

And it may not agree with everyone, some people experienced nausea when trying it, so if you have a sensitive stomach it could be something to think about.


  • 250 mg green tea extract
  • 250 mg ashwagandha
  • 200 mg theacrine
  • 200 mg citicholine
  • GMP certified
  • 100% vegetarian
  • 30 day supply
  • No artificial colors


  • Expensive
  • Can cause nausea on empty stomach



Our rating

Naturewise have created a formula with a total of 9 natural weight loss enhancing ingredients to increase metabolism and energy, promote fat burning and help you slim down.

Their quality supplement has undergone strict laboratory testing to ensure purity and potency of all ingredients.

There is no need to include synthesized caffeine anhydrous in this guy as there are more than enough natural stimulants to intensify metabolism with the likes of green tea extract and guarana seed on the list.

This well-priced fat burner comes in a capsule which is suitable for both vegans and vegetarians. This is a big plus as many will understand trying to find something suitable for most dietary requirements can be a workout in itself.

However some people felt this didn’t really get the home fires burning, and were a little disappointed with the lack of effects, reporting that it just didn’t do anything for them.


  • 400 mg green tea extract
  • 300 mg bitter orange extract
  • 200 mg guarana seed
  • 150 mg rhodiola
  • Non GMO
  • Gluten Free
  • Vegan and vegetarian friendly
  • GMP Certified
  • Laboratory tested for authentication
  • 30 day supply
  • Made in USA
  • Good value


  • Some didn’t experience any effects



Our rating

BELDT Labs have created a powder supplement which is a nice alternative to pills. It comes in a tasty strawberry lemonade flavor with a variety of ingredients specially developed for increased energy, fat loss, appetite suppression, metabolism and focus.

Upon closer inspection, I was a bit disappointed by the labelling of their blend of active ingredients. It’s not clear from the label exactly know how much of each ingredient (other than the potent 200 mg of caffeine) has been included in the 491 mg serving.

This supplement is designed to be taken just before your workout to enhance the thermogenesis effect in your body and boost your weight loss.

It uses good quality ingredients and comes with a fair price tag. It’s been made in accordance to authority standards and manufacture in the USA really instills confidence in the product.

However, there are a few artificial elements in the mix, and which is disappointing to see.


  • Green tea leaf extract
  • Bitter orange extract
  • Caffeine 200 mg
  • GMP certified
  • Made in USA
  • Tasty flavor
  • Good price


  • Artificial additives
  • Exact amount of ingredients not listed

Our Choice

For me it has to be Vintage Burn from Old School Labs. The quality of this product is reinforced by the strict third party testing which just boosts confidence in the quality of the supplement.It has a good dose of green tea extract and decent levels of caffeine which clinical studies confirm is an effective combination for enhancing thermogenesis and associated weight loss.

Moreover, all the ingredients are clearly listed for transparency. You know exactly what you are getting for your money and more importantly what you are putting in your body.

For anyone thinking about trying a thermogenic fat burner for weight loss, for these reasons above I am giving this one the hot spot.

Helen Sanders

Chief editor here at Health Ambition, I'm a proud mother of two passionate about nutrition and ways to live healthier with more energy!

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