Instant Knockout vs Isagenix Natural Accelerator [Only One Works!]

Instant Knockout vs Isagenix Natural Accelerator

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Instant Knockout vs Isagenix Natural Accelerator

A battle between two respectable brands today as we compare Instant Knockout vs Isagenix Natural Accelerator to see which is the better fat burner.

If you are serious about getting shredded, then you know how a good supplement can really help you to beat that plateau. It is a great addition to many peoples workout regime that can help you to notice results.

But, this is only the case if you have managed to find a good product to support you. The ingredients and dosages are everything here, so which does it better?

It either is going to get ahead here, they need to do the following well:

  • Burn fat effectively
  • Be safe
  • Suppress appetite
  • Increase energy

Anything less than this and they aren’t doing their job right. So, let’s start by getting to know them a little better.

Instant Knockout vs Isagenix Natural Accelerator: Who Makes These Fat Burners?

Roar AmbitionInstant Knockout Review

Here we have the UK based team behind Instant Knockout.

They are one of the most respectable brands we have dealt with and everything they make adheres to FDA and GMP regulations.

Instant Knockout review and amend their ingredient profiles regularly. This means they are constantly checking on the quality of their products based on the latest information.

There are loads of positive before and after profiles on the net so they have built up a loyal following.

If you are into endorsements then they have some impressive names. UFC fighter Diego Sanchez puts his name to this product.

Roar Ambition are also the people behind the T-booster TestoFuel. Former Mr. Universe Robby Robinson endorses it.

IsagenixIsagenix Natural Accelerator

If Roar Ambition has gone for an athlete led approach that appeals to the regular guy as well as the pros, then Isagenix is one of the more corporate looking brands in comparison.

It takes a little while to get to grips with their site as it doesn’t send out the clearest message.

Sure, there is a lot of useful information on there with articles on diet and even an app to support your fitness program.

Still, they are a supplements company with a background in direct sales that has a lot of experience in marketing!

They do have a good range of products that includes everything from protein bars, to their own Coffee brand!

All this is fine if it translates into a good fat burner.

Isagenix seems to sell well on Amazon. Although being popular on there isn’t always a sign of a good product, this all makes us eager to see what they both have for us.

Instant Knockout vs Isagenix Natural Accelerator Ingredients

Now we can really get to know these products,

The good news is that Instant Knockout does not use proprietary blends. This means we get to see all the dosages and everything is clear and open.

The same cannot be said for Isagenix. They use a big blend that covers a lot of their ingredients. Still, we can find out a lot from the ingredients alone.

Mutual Ingredients


A good start and an ingredient that can help to regulate blood glucose levels.

According to WebMD, Chromium can decrease LDL (bad cholesterol) levels in people who have lower blood fat levels.

There are some studies that show it can work as an appetite suppressant as it communicates with the brain to tell it the body is full.

At 10 mg in Instant Knockout, you are getting a good amount. The 75 mcg in Isagenix Natural Accelerator will do a similar job.

Green Tea Extract

One of the most popular and effective fat burner ingredients.

A proven thermogenic, it heats the body up on the inside, causing it to burn fat to cool itself down again. Any ingredient that can burn fat as you rest is a good selection.

The catechins in Green Tea are the most beneficial here. They are good for fighting disease and are well-backed antioxidants. tells us that they are anti-obesity as well as anti-diabetic.

You will even get increased endurance levels which will be great for the gym.

WebMD says that Green Tea is a milder stimulant than the likes of Caffeine Anhydrous and it contains 2-4% Caffeine. Although milder when compared to Caffeine, it will provide a boost to your thinking and alertness.

The 500 mg in Instant Knockout is a big and effective dosage. Compare this to Isagenix Natural Accelerator and there is no competition here. Their entire proprietary blend totals 411 mg and has a lot of ingredients competing for space.

Cayenne Pepper

Another excellent ingredient.

Also, another great thermogenic. That isn’t the only reason it is a good selection though.

WebMD says it is an effective appetite suppressant by saying that it has been found to curve appetite, especially in those who do not already eat spicy foods.

With 100 mg in Instant Knockout, you are getting another optimal amount. We find it difficult to say that Isagenix will have given it the same backing given their overall proprietary blend dosage.

Black Pepper Extract

A good inclusion although not the most essential.

It is useful because it enhances the capabilities of the other ingredients.

This means it will have you burning more fat as long as the other nutrients are proven to work. So far, it seems like a good inclusion form both.

Individual Ingredients

Instant Knockout

Vitamin B6

A useful ingredient that works in a similar way to other B-vitamins.

It increases energy levels by targeting fat. B6 turns it into glucose so it can be used for energy, burning it off in the process.

B6 even has links to boosting metabolism so the 5 mg in Instant Knockout makes this a useful ingredient.

Vitamin B12

It stops the body from storing fat making it a good ingredient for a fat burner.

B12 cannot be created naturally by the body so supplementing it is always useful.

Vegetarians and vegans will be the biggest benefactors as the main sources are dairy, meats, and fish.

It is also thought to help fight fatigue as it promotes red cell production.

With 10 mcg included, it is another effective amount.


An effective ingredient once again.

Although it is commonly found in testosterone boosters, it does help the body to stop storing fat. It has even been found to enhance glucose metabolism. adds that that Zinc has also been shown to improve mood.

The 10 mg included is a great dosage.

Green Coffee Extract

An ingredient we are seeing more and more in fat burners as it is proving to be a very effective ingredient.

It is basically Coffee before the color and a lot of the chlorogenic acid has been burnt out.

This is what is most beneficial. This acid stops you from storing quite so much fat and will reduce blood sugar levels.

WebMD tells of a study that looked into adults with obesity. It showed that taking Green Coffee Extract for between 8 to 12 weeks meant more weight loss for those when compared to others taking a placebo.

The 100 mg is another good amount.


With every box ticked already, we are looking for more of the great fat burning benefits.

Here we have another appetite suppressant and one of the better ones.

A dietary fiber that swells in the stomach by absorbing water. This is what makes you feel full and less likely to snack between meals.

At 500 mg you are getting another big amount of a useful ingredient.

Caffeine Anhydrous

Stimulants are great for fat burning and Caffeine Anhydrous is one of the safer and more reliable ones.

It is a powdered form that is easily absorbed by the body, meaning the energy boost you get will be felt quicker.

The other benefits include a boost for your metabolism and increased focus.

With 350 mg spread across 3-4 servings a day, it is a safe and effective amount.

Isagenix Natural Accelerator


Sometimes referred to as Vitamin B3, it is useful for insulin.

Like many B-vits, it is useful for the breakdown of carbs so they can be used for fuel. The thing is, it is usually passed through your urine when you have enough. does say that you need one gram for it to be effective. This means that the 12 mg serving you are getting in Isagenix Natural Accelerator is nowhere near enough for it to work.

Apple Cider Vinegar

A bit of a trendy health food ingredient here but it isn’t the worst.

Apple Cider Vinegar has been linked to slowing the rate that food exits the stomach. This, of course, makes you feel fuller for longer and less likely to reach for a snack.

It is also linked to helping us to absorb fewer carbs. There is a study that showed it can be good for fat loss according to The problem is, it isn’t the best in terms of proper support. does also say that it remains a cheap and safe ‘home remedy’ to aid fat loss. How much are we getting though? Probably not enough because of the proprietary blend.

Cinnamon Bark Powder

A traditional ingredient that has been used for many years in home remedies and medicines.

It is anti-inflammatory and can reduce blood sugar levels so it definitely has a place. The problem is that although it is well tolerated, we don’t have a dosage to see if it will be of benefit in this product.

Cocoa Seed Extract

It can be useful for increasing energy levels according to

You can get the benefits by eating chocolate of 80% cocoa or higher, The flavonoids in this are what are thought to be good for lowering blood pressure. Still, more studies are required to properly support this.

WebMD tell us that it is not clear how flavonoids work in the body, but they appear to cause relaxation of veins. This could result in lower blood pressure.

There is plenty of promise, but we want proven ingredients instead of maybes.

Ionic Alfalfa

Yeah, not the most popular ingredient and that is probably why when you look it up in google, Isagenix will appear on the first page.

They seem to be one of the few brands that really get behind it

WebMD says that taking alfalfa seems to lower total cholesterol and ‘’bad’’ low-density cholesterol in people with high cholesterol levels.

This is filed under the ‘’insufficient evidence for’’ section on their site making it apparent that more evidence is needed.


We’re not ending on a high here although this has links to the energy we create from food.

This is fine but as WebMD states, research suggests that taking ribose supplements by mouth, does not increase power or improve muscle strength in trained or untrained individuals.

It is most likely to be ineffective.

Instant Knockout vs Isagenix Natural Accelerator Side Effects

The good news is that neither product contains anything that should worry you.

All the ingredients are natural and are dosed well. Even with the proprietary blend in Isagenix Natural Accelerator, the overall blend amount isn’t potent enough for many of the ingredients to be effective, let alone dangerous.

Instant Knockout vs Isagenix Natural Accelerator Pros and Cons

Instant Knockout Pros

  • Natural ingredients
  • Money back guarantee
  • Used by top athletes
  • Ships worldwide
  • Enhances metabolism
  • Suppresses hunger

Isagenix Natural Accelerator Pros

  • Some proven fat burner ingredients
  • Safe to use

Instant Knockout Cons

  • Not available in store
  • Shouldn’t take too late in the day because of the caffeine levels

Isagenix Natural Accelerator Cons

  • Underdosed ingredients
  • Proprietary blend
  • Missing some key fat burners

Instant Knockout vs Isagenix Natural Accelerator Conclusion

Winner: Instant Knockout

Buy Instant Knockout from:

(Clean Lean Machine tip: Get 1 box free when you buy 3 boxes!)

Both products have good reputations but only one deserves theirs.

Instant Knockout is full of great ingredients and they haven’t held back on the dosages. This is part of the problem with Isagenix Natural Accelerator. It has some decent ingredients but it is clear that many of them are underdosed.

The fact that they use a big proprietary blend also puts us off, but the low dosages are the biggest crime they commit here.

It just goes to show that it doesn’t take much to rank well on Amazon.

Instant Knockout has proven to be a top fat burner time and again. Whether you put it up against the industry’s biggest brands, new products or leading Amazon supplements, it always comes out on top.

A great fat burner that really works.

Buy Instant Knockout from:

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