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Grenade Killa Ketones

Grenade Killa Ketones claims to be an award winning fat-burning product aimed specifically at women. Unfortunately not all of the ingredients have been proven to aid weight loss in reliable clinical studies.

Below we have reviewed Grenade Killa Ketones against our review criteria to help consumers make an informed decision.


Grenade Killa Ketones Pros
  • Readily available to buy from numerous retailers including Amazon
  • Some of the product's ingredients are supported by clinical trials
Grenade Killa Ketones Cons
  • Maximum effects only achieved when used alongside regular exercise and a strict diet
  • Not all of its ingredients have been thoroughly tested, for example the effects of raspberry ketones have never been studied in humans

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Grenade Killa Ketones Review

Grenade’s Killa Ketones aims to give its customers a helping hand with weight loss and muscle mass increase. However, this supplement is specifically tailored for females with an active lifestyle which should be practiced alongside the product to achieve maximum weight loss results. The product came first in the Naskor sports European diet and weight management awards in 2013 and 2014 and seems to be popular amongst its customers; the majority of customer satisfaction reviews are fairly positive. The Grenade website provides a lot of information about each of their products, including ingredients, clinical research references and contact information.

Claimed weight loss benefits

Grenade Killa Ketones is claimed to target the specific areas of a woman’s body where fat is stored, it supposedly heightens the natural metabolic system which the company claims helps to increase energy and aid in weight loss. Grenade claims that ketones, the main ingredient of the product, increases fat burning inside fat cells.

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How Grenade Killa Ketones Works

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Grenade Killa Ketones contains naturally occurring ingredients which, according to the company, work in harmony to boost metabolism. The company claims that their product is a ‘complete fat burner for females’ which works by increasing the rate of specific bodily functions such as insulin production and the metabolic system. The formulation of this product for women came from clinical studies that found that the female body contains less muscle mass and a higher percentage of fat than the male body. They also use less fat for fuel so require a supplement specifically tailored for these differences.


Caffeine is the main ingredient in Grenade Killa Ketones and is used as a stimulant to boost energy through the metabolic system. It works by stimulating the central nervous system and is often said to be an effective stimulant. However, caffeine has been known to raise blood pressure in those who do not consume caffeine regularly and may cause an increase in water flow in the body.


Grenade Killa Ketones claims that the use of ketones in their product ‘prevents and improves obesity and fatty liver’; this claim is somewhat supported by clinical studies (detailed later in this review). In more scientific terms, ketones is thought to alter the lipid metabolic system within the body, a system which regulates fat storage in the body.

White Kidney Beans

Grenade Killa Ketones contains 100 mg of white kidney bean, which is used as a starch-blocker. The company claims that white kidney bean extract is used to stunt the function of the enzyme amylase which breaks down starch into sugars. This regulation of sugar breakdown should mean that calories remain undigested in the body and are not absorbed fully to increase weight gain. More information about white kidney bean and starch blockers is available on the WebMD website.

African Mango

The African mango fruit contains highly soluble fibres which some sources claim to burn fat within cells. It may also act as an appetite suppressant because it allegedly slows down the rate of digestion leaving the body feeling fuller for longer. This slowed rate of absorption is also claimed to help the control of blood glucose making the body use these sugars to their maximum effect.

CLA Powder

CLA, or Conjugated Linoleic Acid, is an essential fatty acid that the body needs to function at its maximum potential. It is used in Grenade Killa Ketones because of its claimed effectiveness to decrease body fat and increase muscle mass, targeting the main areas of female weight loss. Some studies do support this, as detailed in the ‘clinical studies’ section of this review, but there is no concrete evidence to support its overall effectiveness as a weight loss aid.

Cape Aloes

Cape Aloes, sometimes referred to as Aloe Vera or Aloe Ferox, is used in the supplement because it is rich in antioxidants. The company claims that these chemicals can regulate insulin production in the body and generally maintain a healthy internal balance. There is no evidence to suggest that they have any such fat burning qualities or help with weight loss. A short review of the effects of aloe is available at

Green Coffee

Green coffee is a natural ingredient used in Grenade Killa Ketones as an alleged fat burner. Green coffee beans are left in their natural green form and not roasted or grinded as they are to make coffee. The beans contain a high amount of caffeine which supposedly raises the rate of metabolism, possibly easing the task of losing weight.

Garcinia Cambogia

Garcinia Cambogia contains an active ingredient called Hydroxycitric Acid in very large quantities. It is this acid that is claimed to be an effective weight loss aid as it is linked with the neurotransmitter Serotonin. This substance has an alleged effect on the brain; HCA is used in many weight management supplements because this hormone is thought to stop the liver transforming the carbohydrates we eat into fat. One further effect that Hydroxycitric Acid may have on the body is its ability to affect the brain and enhance mood; therefore, it is thought that it may have the ability to tackle problems such as anxiety and depression.

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Key Grenade Killa Ketones Ingredients

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The manufacturer of Killa Ketones claims that its ingredients are 100 per cent natural. The supplement contains 16 separate ingredients which are claimed to work together to aid in female weight loss and generally maintain a healthy body. The ‘active ingredients’ section outlines the seven primary ingredients in Killa Ketones, but all ingredients and information can be found on the company website. Some of the ingredients are also outlined on our own information pages which will be linked throughout the following section.


Caffeine is used in thousands of food and dietary products and is considered a safe and moderate form of stimulant. It is found in the leaves and seeds of a different plant forms worldwide. It is consumed primarily within coffee and tea, but it is also used in a multitude of weight loss supplements, such as Killa Ketones, and other medications such as pain killers. Caffeine normally takes effect one hour after consumption and the effects last for around 5 hours depending on the consumer’s usual caffeine intake.


This ingredient usually comes in the form of Raspberry Ketones but can be found in a variety of fruits; the ketones give the fruit its unique aroma. Raspberry Ketones are often used in makeup and perfumes as a fragrance and colourant. Ketones are considered reasonably safe to use in supplements but there have been limited clinical trials to support any safety information given. However, it may be true that supplements don’t contain enough of the natural chemical to have any effect on weight loss.

White Kidney Bean

White kidney beans, also known as cannellini beans, are used in everyday cooking as well as some dietary supplements. In weight loss supplements, the extract is believed to work as a carbohydrate binder, preventing carbs that are consumed in the diet from being absorbed by the body. A 2010 article from the Daily Mail presents a sceptical view of white kidney beans being effective as carbohydrate blockers. However, this article does support the fact that the beans are a good source of fibre and make a positive addition to a healthy diet. Evidence from scientific studies is fairly mixed regarding the potential of white kidney bean extract for weight loss.

African Mango

The African Mango is a fruit native to the continent of Africa. The seeds of the fruit have become increasingly popular within weight management supplements over recent years, being widely used in diet pills and supplements but without any support from clinical trials. The seeds are cracked to release their chemicals thought to have weight loss properties and are often eaten either raw or roasted by natives. However, the seeds can also be ground into a butter or paste and sold in blocks to larger manufacturers of products, such as weight management supplements.


Conjugated Linoleic Acid, or CLA, is a form of linoleic acid typically found in dairy products, animal fat and meats. An article was written for the Daily Mail about its effectiveness as a weight management ingredient; the article seems to take a rather optimistic view of the potential of CLA considering it is easy to obtain from everyday food sources. As well as claims that conjugated linoleic acid helps with weight loss, there are some sources which claim that it strengthens the immune function to fight off illness. Therefore, the acquisition of this acid from a regular diet is crucial to maintaining a healthy body.

Cape Aloes

Cape Aloes, or Aloe Vera, comes from the leaves of multiple plant sources. The leaves contain aloe gel which is often extracted and used for many medicinal purposes including skin conditions such as burns and rashes. The leaves themselves can also be crushed and put into medicines and used for similar purposes as the gel. Some claim that aloe can help speed up the healing process of wounds and could be harmful to certain bacteria and fungi. However, there is no evidence to support it as a weight loss aid or any claims made by the Grenade Killa Ketones manufacturer.

Green Coffee

Green coffee is a relatively new inclusion in many weight loss supplements over recent years. It is kept unroasted and in its natural green form when used for medicinal purposes – it is only roasted when used in coffee. The bean is kept in its raw form because it contains an acid which is broken down when it is roasted. This acid is the part of the bean which some claim helps with weight loss and health boosting, although this has not been scientifically supported by any conclusive clinical trials.

Garcinia Cambogia

This Indonesian plant has only recently been discovered for its weight loss properties. Before this, it was grown for its fruit and used in everyday Asian cuisine. The fruit itself is very sour and has been thought to help the digestive system. Garcinia Cambogia has also been used in traditional medicine to cure stomach issues although no scientific research proves its effectiveness for this. The plant contains multiple hormones which have undergone limited research and produced some inconclusive results. These include Hydroxycitirc Acid and Cortisol which some manufacturers claim to aid in weight loss.

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Clinical Studies

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Clinical studies are undertaken for the purpose of researching medicinal ingredients and pharmaceutical products to measure their effectiveness, safety and possible side effects. The published results of these trials are used to build the reputation of a product or ingredient and to erase concerns of serious side effects and possible dangers which are presented to customers. Grenade Killa Ketones claims that its product contains all natural ingredients, all of which have been clinically researched to some extent, some more than others, and the results are detailed below. More information about clinical trials is available on the World Health Organisation website.


In 1990, a study was undertaken to observe the thermogenic and metabolic effects of caffeine. Healthy volunteers were split into groups, some were given a variety of doses of caffeine and others a placebo pill. Their results showed an increase in heart rate in those that took the caffeine dose. Their study also suggests that caffeine increases vascular smooth muscle tone and hormone production, which are responsible for the majority of the thermogenic effects caused by caffeine. For more information about this study, read the full article on the American Society of Clinical Nutrition website.


A study was undertaken in May of 2005 to test the anti-obesity effects of raspberry ketones on mice fed high fat diets for a period of ten weeks. The study focuses on claims that ketones had a similar effect on the body as synephrine, another ingredient popular in diet supplements, and increased the body’s lipid metabolism to reduce fat in body cells. The results of this study were reasonably strong and showed a trend of raspberry ketones having a positive effect on weight decrease. However, this one study cannot provide any conclusive results to define the effects of ketones as fully successful, particularly as it used mouse subjects, not humans.

White Kidney Bean

One clinical study was undertaken to discern the potential toxicity of white kidney beans when taken orally. This study revealed that the white kidney bean was safe for use and caused no toxicity in rats when given to them for 28 days at different strengths. This research gives a clear idea of the non-toxic effects of white kidney beans and goes a long way to prove that it is safe to use in the short-term considering the study produced a zero-toxic result. However, as this is only one study on the subject of toxicity, it cannot be used alone to hold up definitive proof of the non-toxicity of the white kidney bean.

There have been very few clinical studies researching the weight loss effects of white kidney beans as an effective starch and carbohydrate blocker. However, there was a clinical trial in 2007 to test the above claims and the results returned rather positive view of the bean or in this case extract of the white kidney bean. 25 healthy subjects were divided into groups and given different doses (sometimes placebo) of white kidney bean for 4 weeks. The majority of subjects which were given actual doses of white kidney bean lost weight to some extent over the 4 weeks period.

African Mango

In 2005, researchers tested African mango seeds on 40 obese subjects in Cameroon and measured the weight loss effects over a period of 4 weeks. The subjects were divided into two groups, one given the African mango seeds and the other group given a placebo pill. Both groups were measured as losing some weight but there was not a large difference between the two groups’ total weight loss. The mango seeds only slightly increased the rate of weight loss and this is not conclusive because of the lack of trial repetitions and trends within the results. The study is outlined in more detail on the NCBI website.

Cape Aloes

As of yet, there have been no studies to suggest that cape aloes, or Aloe Vera, has any weight loss effects whatsoever. However there has been some clinical research undertaken to prove the effects of the ingredient on other medical issues such as skin conditions which seem to suggest it as an effective healer and possible laxative. All of these studies are outlined on the NCBI page on aloe and its medicinal effects.


There is very limited research on the health effects of Conjugated Linoleic Acid but there was one study undertaken in 2003 to measure the effects of the acid as part of a regular diet and its general effects upon everyday life. One of the functions measured as part of this study was the effects of CLA upon obesity and weight loss. Unfortunately, many of the details of this study are not included in easily accessible reports, but it is stated that the results were inconclusive and cannot prove the effectiveness of the acid.

Green Coffee

A recent study, in 2011, was entirely focused on the inclusion of green coffee in weight loss supplements. The ingredient was tested multiple times on subjects of different weights, however the test on normal weight subjects was excluded from the results as it was inconclusive. However, the results which were published showed a significant difference in weight loss and can be used as evidence to support the weight loss effects of green coffee. However, as the measured trials are limited for this ingredient, this study cannot be used as concrete evidence of the coffee bean’s effectiveness.

Garcinia Cambogia

A clinical study in 1996 tested the weight loss effects of Hydroxycitric Acid (HCA) which is a hormone present in Garcinia Cambogia. Scientists measured the weight loss of 60 overweight participants when they took either a dose of HCA or a placebo pill for 8 weeks. The results of this study showed the hormone as having significant effects on the overweight subjects compared to the placebo group. However, these results cannot be used as evidence to support the effectiveness of Garcinia Cambogia because of a further study from 2001. This trial was measured over a 12 week period and showed no significant difference between the HCA and the placebo pills, counteracting the previous study.

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Grenade Killa Ketones Side Effects

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Grenade Killa Ketones claims that all of its active ingredients are from natural sources. However, just because the ingredients are natural, this does not mean that they come without side effects. All ingredients have some possible side effects ranging from minor to severe. The supplement should be taken according to the given product advice about health and dosage and all possible side effects are only provisional. Many of the Killa Ketones ingredients have relatively minor possible side effects, these are explained in more detail in the below section and on the linked information websites. It should be mentioned however, that most of the ingredients have not been well-studied, and so it is possible that there are unknown side effects.


The possible side effects of caffeine are often relatively minor, including symptoms such as irritability, insomnia, restlessness and in some cases nausea and vomiting. These symptoms are all due to the fact that caffeine is a stimulant so can cause some negative side effects when too much is consumed over a short period of time. The NHS published an online article in 2013 entitled “can excess coffee intake lead to an ‘early grave’?”, which, although at first seeming relatively pessimistic towards the effects of caffeine, outlines the possible side effects of caffeine and some detail about research which addresses the above question. More severe side effects of caffeine include increased blood pressure and heart rate.


Ketones, particularly Raspberry ketones, have been deemed by the FDA as safe to use but only in small doses in either food or in some supplements. However, it is always sensible to consult a healthcare professional if you are considering using the product if you are pregnant or breastfeeding. It is also possible to have an allergic reaction to ketones so if a customer experiences any unusual side effects from taking wither ketones or a supplement containing ketones, consult a doctor as soon as possible.

White kidney beans

As they can be eaten as part of a regular diet, white kidney beans are considered to be safe for use. However, their large fibre content means that they can sometimes cause some stomach problems when eaten or taken in large amounts including diarrhoea and bloatedness. The FDA report on white kidney bean extract is also available to read for more information.

African Mango

As a fruit, African mango is considered safe for consumption. During clinical studies only very mild side effects were recorded as occurring and they were very uncommon. The most severe were flu-like symptoms but there were also claims of dry mouth, headaches and sleep disturbance. More information about the possible side effects of African mango is available at

Cape aloes

The side effects of Cape aloes or Aloe Vera are uncommon and not associated with serious symptoms. Some minor reactions include abdominal cramps, bloating and diarrhoea when taken orally. There are also few possible side effects when used externally on the skin.

CLA powder

Conjugated linoleic acid is considered most likely safe when taken in food in regular amounts and has been deemed ‘possibly safe’ when used for medicinal purposes and in supplements such as Killa Ketones. This label has been appointed because there is no evidence to suggest that CLA powder is unsafe for use but there have been some recorded side effects in some consumers such as stomach upset and nausea. It is also recommeneded that pregnant or breastfeeding females should avoid CLA for safety reasons.

Green coffee

As of yet, there are no claimed serious side effects of green coffee and therefore it is deemed safe for use. However, the lack of research behind the ingredient means that there is no real evidence to prove the ingredient as 100 per cent safe. Considering that green coffee beans contain caffeine there are some possible side effects relating to this inclusion. These possible side effects are detailed above in the ‘caffeine’ section of side effects.

Garcinia Cambogia

As of yet, there have been minimal claims of side effects of Garcinia Cambogia. It has been suggested that the ingredient is safe to consume for under 12 weeks, although as Killa Ketones has no restricted dosage time period, the inclusion of Garcinia Cambogia in the product could possibly cause some side effects. These side effects include nausea and headaches which could also occur while the body adjusts to the ingredients.

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How to Use

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The Grenade FAQ page gives quite extensive details about how a customer should use their product. The basic guidelines instruct the user to take one capsule on an empty stomach when they wake up and then another 30 minutes before lunch, both times with water. However, they then go on to advise customers to drinks eight glasses of water per day alongside the supplement and to not exceed two capsules in one day.

Grenade also provides some instructions which are conditional, such as how to take the pills on training days. If the user trains before lunch then the manufacturer states that the supplement should be taken as usual, but if they train after lunch then the capsule should be taken 30 minutes before the training session instead of before lunch. A further advisory option that the company give is that if the consumer wants to assess their tolerance to the supplement then they should only take one capsule for the first seven days of use.

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Who Makes It?

Killa Ketones is produced by a company called Grenade, an award winning health and diet supplement manufacturer who supposedly have a high reputation in the weight loss industry. They claim to go through high level Quality Assurance Procedures to ensure their products are at the best possible level for their customers. Their main base is in Coventry, England, so their products are at their most accessible to UK buyers. The company have an automatic message system under the ‘contact us’ tab of their website. They provide their customers with a large amount of information on their website, including references to authoritative sources such as clinical research about ingredients. They sell many other products which are all aimed at improving weight loss and increasing muscle mass in both men and women and these products are specifically tailored according to gender and fitness level.

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Where to Buy Grenade Killa Ketones


As the Grenade company is based in the UK, it is easy to purchase the Killa Ketones supplement directly from the manufacturer on their online store for a UK customer. The price is £29.99 from the manufacturer itself which works out at around £1 per day, considering that each bottle has enough supplements for a 30 day course. However, the Grenade company do not claim to offer any sort of money back guarentee explicitly on their website unlike some other supplement manufacturers. They do however state that they will replace any damaged product and will accept responsibility for this. Information about terms and conditions and delivery information is available on the company website.

Killa Ketones is also available to buy on Amazon and Ebay with prices from around £16. Therefore there seems to be no difference in where a customer purchases the product, but it could be cheaper to order through Amazon where Killa Ketones is sold from £16 directly from the Grenade company.

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Does Grenade Killa Ketones Meet our Approved Criteria

Money-back-guarantee: No, Grenade does not offer a money-back guarantee.

One-off payment: Yes, the product is available from the official website for £29.99 for a 30-day supply.

Manufacturing Standard: This information does not appear to be available on the official website.

Accompanying Diet Plan: There is no mention of a diet plan.

Ingredients and quantities disclosed: Yes, the ingredients list is readily available.

Company contact details readily available: Yes, these are available on the official website.

Grenade Killa Ketones does not meet our ‘Approved’ criteria as the product does not come with a diet plan or money-back guarantee; manufacturing standards are also not provided.

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Overall Verdict

After looking at all aspects of the Grenade Killa Ketones supplement, the results seem rather balanced. Most of the ingredients have been the subject of some scientific research, however these are all lacking support from reliable scientific studies. Although all active ingredients are generally thought to be safe for use in moderation, there is still no clear conclusions about their effects upon the body and as successful weight loss aids. The Grenade company itself seems provides their customers with useful information and a full ingredients list, but there is no money-back guarantee or diet plan with the product.

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