People choose an active, athletic life to stay lean. But nobody knows how to get there faster. Are workouts and diets enough? Or, should we pop in a pill?

The market is filled with supplements that are overwhelmingly large in number. But, not all supplements are made equally. So, we hunt for products used and approved by pros. Instant Knockout is one such option.

These fat-burning capsules are used by pro athletes to help them get into perfect shape within a short time. It was developed for pro boxers and mixed martial artists who need to cut fat quickly for their weigh-ins.

Now, it’s available to everyone. But is it effective? Find out in our Instant Knockout review!

Instant Knockout Review: An Overview

Instant Knockout is a metabolism booster that prevents the storage of fat in the body. It reduces hunger and boosts your energy levels to help you work out better and train harder.

Backed by research, this health supplement is formulated with ten natural ingredients. These are super-powerful fat burners. Instant Knockout can help to –

  • Oxidize fat
  • Burn calories
  • Increase metabolism rate
  • Suppress hunger
  • Keep you feeling full
  • Provide energy
  • Increase insulin sensitivity
  • Decrease sugar
  • Offer other health benefits

When taken in correct doses, Instant Knockout can complement your diet plan and exercise program perfectly and “knock out” stubborn body fat – in the true sense of the term.

While the time this supplement takes to show results may vary, you should be able to notice the effects in 10-14 days. To understand if it can be a good fit for you, start with its advantages and disadvantages:  


  1. Premium quality natural ingredients to burn fat fast.
  2. Higher energy produced from burning fat for better, more fueled workouts.
  3. Curbs hunger pangs and prevents overeating, especially while fasting.
  4. Healthy for your heart and body with lowered cholesterol and sugar levels.
  5. Scientifically designed to improve body shape irrespective of gender.


  1. High caffeine content, which can trigger allergic reactions in some people.
  2. Contains gelatin and cannot be consumed by vegetarians and vegans.

Many people have noticed higher focus and energy of the mind as a result of taking these capsules. This can be a motivating factor when you’re working out and trying to keep your head in the fitness game.

Instant Knockout can be a little heavy on the pockets, and the dosage can be a little challenging to track. But when getting ripped quickly is no easy business, it requires your attention and commitment.

The results of consuming Instant knockouts obviously vary from one person to the other. But, consumers have mostly reported positive results from its use. Athletes, in particular, swear by it. 

Instant Knockout Review: Brand Overview

Instant Knockout can be your weapon in the battle against slow metabolism, constant hunger, stubborn fat, and low energy. This is particularly helpful if you’re an athlete or have an active lifestyle to stay fit.

This product was created by Roar Ambition, a health supplement company in London. It was initially developed for boxers and martial artists! When the date and plan of fights and weigh-ins are released, these athletes have to work fast to achieve their target weight. They reduce extra body fat while maintaining muscle mass for strength.

Instant Knockout has proven to be a super-fast path to massive fat loss. Now, this product is no longer exclusively available for professionals. Anyone can use it now! 

Instant Knockout Ingredients:

Instant Knockout’s nutrient-rich formula includes ten ingredients that are the superheroes of fat burners in nature. The core ingredients of Instant Knockout are as follows:

  1. Green Tea Extract
  2. Glucomannan
  3. Cayenne Pepper
  4. Caffeine Anhydrous
  5. Green Coffee Bean
  6. Vitamin B6
  7. Vitamin B12
  8. GTF Chromium
  9. Piperine
  10. Zinc

Read more about the ingredients here.

Of these, the hero ingredients are green tea extract, glucomannan, and cayenne pepper, along with the powerful effects of caffeine anhydrous.

Multiple research and tests have shown their effectiveness in the loss of fat and weight. Let’s check out how these ingredients work:

 Green Tea Extract

Green tea extract has catechins and caffeine. Studies indicate that these have a thermogenic effect, i.e., they produce heat and elevate metabolism rate. This helps to burn fat and calories.

This powerhouse nutrient attacks body fat from all angles and is known to boost fat oxidation by more than 15%. It is the key ingredient that makes Instant Knockout a thermogenic supplement.

It can increase the core temperature of your body slightly and give you more energy for a better workout session, every time. Thermogenesis perfectly complements a calorie-deficient diet plan. 


Glucomannan, derived from the roots of konjac or elephant yam, is a dietary fiber that makes your feel full. Thus, it can suppress your hunger and reduce your appetite.

Studies have shown that even if it is paired with the regular diet and exercise plan, it can still lead to a significant reduction in weight. But wait! It doesn’t stop there!

This soluble fiber absorbs water to create bulk in your stomach, which can relieve constipation. It also works in your gut to absorb sugar and cholesterol. It has an overall healthy effect on your body! 

Cayenne Pepper

Cayenne pepper can do more than just spice up your food! It can boost your body’s fat-burning capability. Studies prove that it is a great metabolism booster because of the presence of capsaicin.

This bioactive compound is the most common compound of the capsaicinoid chemical group. It makes cayenne pepper thermogenic in nature, like green tea extract.

That means it produces heat to boost the oxidation of fat and increase the rate of metabolism. Further, it increases your insulin sensitivity by up to 24%. Thus, it stimulates the efficient storage of energy.

 Caffeine Anhydrous

To put it in simple words, caffeine anhydrous is processed and dehydrated caffeine. It’s that component in Instant Knockout, which gives you just the kick you need to power through your workout session!

Scientists say that it can enhance energy expenditure, weight loss, and athletic performance. It intensifies your workouts and boosts fat loss!

This ingredient can stimulate the nervous system by inhibiting adenosine receptors. It even boosts your cognitive abilities, reduces fatigue, elevates insulin sensitivity, and increases pain tolerance.   

Other Ingredients

Apart from these, the other ingredients of Instant Knockout work together in making this a healthy dietary supplement for you. Check out their benefits:

  • Green coffee beans: Slows down the rate at which your body absorbs fat from food.
  • Vitamin B6: Metabolizes lipids and breaks down extra fat.
  • Vitamin B12: Helps to convert food into energy for the body.
  • GTF chromium: Enhances insulin, curbs appetite, burns calories and fat, and boosts muscle mass.
  • Piperine: Helps digestion, increases thermogenesis, and prevents fat cell formation.
  • Zinc: Boosts testosterone for elevated protein synthesis and enhanced muscle mass and strength.

So, now you know that Instant Knockout is not like other dodgy performance enhancers with harmful steroid content. All its ingredients are natural, and they are scientifically combined to help you get trim.

Shipping and Return Policies

Instant Knockout is only available for purchase on the manufacturer website. You can also make a second-hand purchase from eBay or Amazon, but it will cost you much more.

You can expect delivery between 1-15 days, depending on your location and the delivery option that you have chosen. You can return an unused bottle by contacting their customer service team.

How Does Instant Knockout Work?

Your body has a receptor called Alpha-2, which triggers it to trap fat in areas like abs, hips, thighs, etc. Instant Knockout’s green tea extract turns this receptor off and melts the stubborn fat.

Meanwhile, the other ingredients travel through your body, forcing out all the unwanted fat from every corner. They prevent your hunger pangs from replenishing the fat that they turn into energy for exercise.

The ingredients in Instant Knockout work together and complement each other to help you reach your target weight and size in no time. It performs three primary actions in your body:

 a) Boosts Natural Metabolism

Whether you’re exercising or resting at home, your body is always burning energy. Instant Knockout increases your metabolism so that you can burn more, even when you rest. This helps to cut fat faster.

 b) Curbs Appetite

Having a strict diet and heavy workout sessions can leave you feeling hungry. It gets worse when you are fasting. This results in overeating. Instant Knockout makes you feel fuller and reduces your cravings.

 c) Boosts Energy

By burning all the unwanted fat, Instant Knockout helps to produce energy that you can use during workouts. Simply put – it not only energizes you to look ripped but also uses your body fat to do so!

An interesting thing to remember about your food and workouts is that if you are extremely deficient in calorie intake and continue to work out hard, it will only lead to a slower metabolism!

You can’t starve your body and expect it to function properly! Your body gets used to the low fuel and slows down all functions, including metabolism. That means you have less energy and more cravings.

In this starved state, your body starts to store calories in the form of body fat. This is a means of protection against a possible lack of food in the future.

Instant Knockout helps to maintain a high rate of metabolism. It makes sure that your body gets the energy from all the fat that’s either stored in your body or enters your body through the food you eat. 

How To Use Instant Knockout

Instant Knockout is a hassle-free supplement that comes in the form of capsules. However, there are specific recommendations regarding the dosage and time of consumption that you should follow.

The recommended dosage of Instant Knockout is 4 capsules in a single day. These must be taken according to the following schedule:

  • Capsule 1 – Morning, on an empty stomach
  • Capsule 2 – Before lunch
  • Capsule 3 – Afternoon
  • Capsule 4 – Before dinner

This schedule will help to

  1. Dose the consumption evenly throughout the day.
  2. Create a prolonged fact-burning effect on your body.
  3. Enhance the effects further because of consumption before meals. 

The Role of Exercise

While Instant Knockout can be extremely effective, it will not work like a magic pill, especially on its own. Remember that your diet and exercise play a crucial role in your weight loss and fat reduction journey.

Are you just starting out and do not have access to a trainer or a gym? Luckily for you, Instant Knockout is here to help! You will be able to find workout guides on their website to help you get started.

You can find a wide range of exercise guidelines provided by experts. Burning fat, getting ripped within a week, getting active rest, training for self-defense, warm-up exercises – you name it, and they have it!

Is Instant Knockout for Everyone? Who Should and Shouldn’t Take It

Instant Knockout is formulated to suit all athletes and body-builders with different body types, diet plans, and exercise programs.

 People who can use Instant Knockout include:

  • Athletes and body-builders who are above 18 years of age
  • Women prioritizing weight loss rather than muscle gain, since Instant Knockout is primarily targeted towards fat loss instead of building muscles, and works equally well for women.

But just like any supplement, you must be careful about certain precautions and restrictions in the case of Instant Knockout. 

Precautions for Instant Knockout

a) Remember that Instant Knockout has a high level of caffeine content. If you have sensitivity towards stimulants, then you should:

  • Consult your medical advisor before taking it, or
  • Start taking the supplement in small doses to monitor the reactions and understand your tolerance. In the beginning, you can take 2-3 pills a day. It will make the bottle last a little longer.

It is perfectly alright to take other health supplements alongside Instant Knockout. But you must make sure that the other supplement does not contain any stimulant.

b) It is recommended that you avoid using Instant Knockout continuously over a long period. Otherwise, you may develop a tolerance for the ingredients, and they will stop showing results.

Take a gap of a week after the first month, and discontinue using Instant Knockout after every one or two months. This way, your body won’t get used to the ingredients and react to the effects when resumed.

 You should not use Instant Knockout if you are:

  • Less than 18 years of age
  • Pregnant or nursing
  • Suffering from a chronic medical condition and undergoing treatment or medication

Don’t forget to limit your consumption of Instant Knockout to four capsules in a single day. Also, remember to take the pill with water to avoid choking. 

Instant Knockout Side Effects

Users haven’t reported any significant side effects after taking this fat burner. However, mild side effects after starting on this health supplement may include:

  • Insomnia
  • Upset stomach
  • Headache
  • Irritability

It is important to note that Instant Knockout contains natural ingredients, including caffeine in large amounts. So, you may experience allergic reactions if you are sensitive to these ingredients.

Conclusion: Should You Buy Instant Knockout?

If you want to burn fat in a healthy and natural way, Instant Knockout is a quick and easy tool to try. Though it is a little on the pricier side, you can expect great results from it.

It contains natural ingredients with proven results in burning fat, boosting metabolism, and curbing hunger. Their premium quality and generous quantities ensure effectiveness. That must conclude our Instant Knockout review. You must remember, however, that it is not a magic pill or shortcut to fat loss. While it’s super-fast, you must let it show results by continuing with a well-planned diet and a workout plan fit for an athlete.