5 Best Fat Burner Supplements To Support Your Weight Loss

There’s no shortage of fat burner supplements, and unfortunately, there’s also no shortage of crappy weight loss pills that promise the world and do nothing.

You can usually see them from a mile away with massive social media advertising and celebrity endorsements that suggest they spend more money on marketing than actually making a good product.

So, we took the time to test out the most popular products and come up with this list of best fat burner products.

Our Top 5 Fat Burners

1. Phen Q

PhenQ is a thermogenic fat burner with its main natural ingredient being caffeine. It also helps on the weight loss journey by making you feel full for longer, which is why it’s best to take it before meals.

While that does mean you have to remember taking multiple pills every day, the benefit is a more consistent fat-burning effect throughout the day.

We also found that the only reported negative effects came down to allergies or sensitivity to stimulants.


- Good reports about appetite suppression for longer fasting
- Thermogenic and mental focus boost from caffeine
- No side effects makes it one of the safest fat burners

-You'll need to set a reminder to take multiple pills a day.

2. Instant Knockout

What we like about Instant Knockout is that it doesn’t just focus on caffeine to get a metabolic boost. By including green tea extract, this is one of the more powerful thermogenic fat burners that we have found.

The downside is that this can be quite stimulating from a lot of caffeine. But as long as you avoid taking it later in the day, you shouldn’t have much of a problem.

There are many positive reviews from high-performance athletes and bodybuilders that this fat burner has a significant impact on their BMI.

- Metabolic stimulation from caffeine and green tea extract
- Positive reviews about the increased physical and mental energy levels
- Helps to lose weight and reduce BMI in cutting phases

- It's not a suitable option for vegans

Check the best Instant Knockout price here.

3. Phen375

This weight loss supplement is similar to the above PhenQ, but we found that this fat burner isn’t quite as good at stopping food cravings and hunger.

Like other thermogenic fat burners, Phen375 relies on caffeine as the main active ingredient. The downside is that you can’t tell how much caffeine is in it, making it difficult to judge your coffee intake and avoid the jitters.

The included L-Carnitine also seems to work to move fatty acids to muscles as well as help with muscle recovery.

- Good dose of caffeine promotes mental focus and motivation
- Reviews are positive about the thermogenic effect to burn fat
- Also works to support muscle recovery and reduce soreness

- Detailed ingredient amounts hidden behind a proprietary blend

Check out Phen375 here.

4. Burn Lab Pro Fat Burner

Many fat burners heavily rely on caffeine as the main way to trigger thermogenesis, but if you're sensitive to stimulants, then that can become a pain for your weight loss journey.

That’s why Burn Lab Pro Fat Burner supplement focuses on other ingredients to stimulate metabolic boosts.

Bodybuilders also favor this over other weight loss supplements, as it seems to help with losing weight from fat and not muscle tissue.

- Caffeine-free fat burning supplement to help avoid jitters
- Positive reviews about higher energy levels
- Claims to help retain lean muscle mass in cutting phases

- It's one of the more expensive options

5. CrazyBulk Clenbutrol

The final one of our recommended fat-burning supplements is CrazyBulk, and it’s another one with positive comments from athletes who go through fasted training early in the morning.

With fewer hunger cravings that lead to snacking, it’s also a powerful fat burner that seems to provide a good energy boost during exercise.

Unlike other weight loss products, its main aim is to burn fat during a workout, which is why you should take it immediately before you hit the gym.

- Stimulating effect from strong dose of caffeine boosts metabolic thermogenesis
- Works well for extended fasting with good hunger suppression
- Claims to help with stamina and mental motivation during workouts

- You'll need to take three capsules before a workout

How Do Fat Burners Work?

Fat burners generally work in two ways that help you to get the most out of your diet and exercise effort.

Now, it’s important to note that fat-burning products are not some sort of magic pill that will give you a beach body by sitting on the couch all day.

But combined with a healthy diet and exercise routine, they could make a big difference.

Metabolic Boost

You’ll often hear the term thermogenic fat burner, and this refers to the metabolic process that raises your core body temperature by burning off extra calories and stored fat.

It’s a perfectly natural process, and by triggering it several times a day, you could notice some big differences on the weighing scales within weeks.

Appetite Suppression

An important part of trying to lose weight is to eat fewer calories than you burn on any given day.

But that can leave you with hunger cravings, and many people give in to those cravings by reaching for sugary treats and snacks.

A good fat burner should include ingredients that make you feel full for longer to help extend fasting periods and times between meals.

Which Product Will Boost Your Weight Loss Efforts?

Based on all of our testing, the best thermogenic fat burner is PhenQ. With basically no side effects as long as you can tolerate caffeine, athletes have seen much more effective cutting phases.

If you’ve struggled with losing weight or you’ve hit a plateau where you just can’t get rid of some love handles, then place your first order today and see how well it works for you.

Click here to get the best PhenQ deal today.