Grenade Killa Ketones

Updated May 9, 2019.
Published Nov 25, 2014.

Grenade are well-known in the bodybuilding world for their supplements and high-protein snacks. One of their range is a women-only product called Killa Ketones. As fat burners go, it seems ok. There are some good ingredients, but some underwhelming ones too. Customer reviews are fairly positive, although side effects are often mentioned. Our biggest issue with Grenade Killa Ketones though, is the outrageous cost to return a product. If you decide you don’t want it for any reason, you are charged £19.50 to send it back! Which is almost the cost of the product itself.


  • Some clinically proven ingredients
  • Ingredient quantities listed


  • Majority of ingredients under-researched
  • Ingredients in insufficient quantities
  • Inadequate and costly returns policy
Grenade Killa Ketones
There are hundreds of different diet pills available, with many of these being tailored for the individual needs of certain groups of consumers. Grenade Killa Ketones is a fat burner designed to be used by women, alongside a calorie and carb controlled diet that is high in protein.

We take an in-depth look at this female fat burner by the popular company, Grenade.

Grenade Killa Ketones Overview

What you need to know about Grenade Killa Ketones

Grenade Killa Ketones appears to contain several fat burning and metabolism boosting ingredients, including caffeine, green coffee bean and l-carnitine. However, there are also numerous ingredients that have questionable weight loss benefits, as they have been relatively untested through clinical trials.

Raspberry Ketone, the ingredient that this diet pill is named after, has never been tested in humans, and Acai Berry is generally untested in relation to weight loss. Similarly, African Mango and Garcinia Cambogia have delivered mixed results in clinical trials.

B-vitamin deficiency may hinder weight loss attempts, but B vitamins in general are widely available in a balanced diet. Taking an excess amount of any vitamins is unlikely to boost weight loss efforts.

The amount of kidney bean extract in this diet pill is much smaller than the amount used in successful clinical trials, and so it likely to have a much smaller effect.

What are the side effects of Grenade Killa Ketones?

For a full list, please see the Side Effects section below.

How much does Grenade Killa Ketones cost?

One bottle costs £29.99, plus delivery.

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Grenade Killa Ketones Key Features

Grenade Killa Ketones is a product manufactured by Grenade, a British company. It is designed to be used by women and is described as a revolutionary fat burner.

Grenade Killa Ketones Key Points

  • Manufactured by Grenade
  • 60 capsules per bottle
  • Metabolism booster for women

Anyone who wants to contact the manufacturers of Grenade Killa Ketones with questions about the product should first check out their FAQ page for the product on the Grenade site.

Grenade Killa Ketones Concerns:

  • Under-researched ingredients
  • Ingredients in insufficient quantities
  • Costly returns policy

If your question can’t be answered on this page, Grenade can be contacted via a contact box located on their contact us page. They do not provide a phone number or email address that the company can be contacted upon, but the company address is listed on the official Grenade website.

What does Grenade Killa Ketones claim to do?

According to the manufacturer’s website:

Killa Ketones™ is a revolutionary new fat burner formulated specifically for females. Whether you want more energy and fat loss from your workouts or you want to lose inches, Killa Ketones™ is the ultimate tailor-made product for your unique metabolic needs.

Does Grenade Killa Ketones work?

Some of the ingredients in this diet pill have been clinically proven to boost weight loss by burning fat or boosting the metabolism. However, there are even more ingredients that have had little or no study into their weight loss potential, and in some cases, the clinical trials conducted have provided mixed results. Whilst some customers may notice an effect, this diet pill is not going to be the strongest diet pill available, and may not cause weight loss in some customers.

Customer reviews suggest that some people have noticed results, whilst others are disappointed, seeing a lack of weight loss, or experiencing the same rate of weight loss as when they weren’t using the diet pills.

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Grenade Killa Ketones Ingredients

The quantities of each ingredient provided below are per 2 capsule serving.

  • Caffeine (200 mg): Numerous studies have shown that caffeine boosts energy levels and alertness, as well as mildly boosting the metabolism, causing a small increase in the number of calories used by the body. The effects shown in studies are small, and some studies are inconclusive.
  • Raspberry Fruit powder (150 mg): Raspberry ketone is the part of a raspberry (and other fruits) that provides the distinctive smell of raspberries. Whilst it can be extracted from the fruit, especially for use in food flavourings and perfume production, it is much cheaper to synthesize it in a lab, especially for the large quantities that are required for use in raspberry ketone supplements. Whilst there is a small amount of evidence that raspberry ketone can cause weight loss in rats, there have never been any human trials on the potential weight loss effects of raspberry ketone. The safety of using such large quantities of raspberry ketone has also never been fully researched. Source:
  • White Kidney Bean (100 mg): One study in humans showed that participants who consumed white kidney bean extract, in addition to being on a multi-component weight loss programs (diet, exercise and behavioural intervention) lost more weight when compared to those who just followed the multi-component diet.
  • African Mango (100 mg): This is thought by some to be an appetite suppressant, thanks to the fibre content in the seed. However, studies are limited, and many have been funded by supplement makers, which always brings into question the validity of the study.
  • CLA powder (100 mg): Naturally found in dairy products and beef, conjugated linoic acid may help to reduce body fat, but may not cause changes to body weight. The average daily diet provides between 15 and 174 mg of conjugated linoleic acid, making the amount in PhenBurn 375 minimal.
  • Cape Aloes (100 mg): More commonly known as Aloe Vera, this plant is used for a range of ailments, although the gel and latex parts of the plant have vastly different applications. It is unclear which part is used, but cape aloe has been used orally to treat inflammation, stomach ulcers and constipation, amongst others. Source:
  • Magnesium Bisglycinate (100 mg): Magnesium bisglycinate is magnesium bound to the amino acid glycine, making it a more absorbable form of Magnesium. Magnesium is an electrolyte and essential mineral which is required by the body for numerous different purposes.
  • Green Coffee (50 mg): An extract from unroasted coffee beans which may aid with weight loss. Several trials have found that overweight subjects lost significant amounts of weight whilst consuming green coffee bean extract, especially when compared to a placebo. Weight loss results were not seen in patients that were of a normal healthy weight already.
  • Garcinia Cambogia Powder (50 mg): Garcinia Cambogia is a small fruit, also known as the Malabar Tamarind. Test tube and animal research suggest that HCA, the active compound in Garcinia Cambogia, may be helpful in weight loss because of its effects on metabolism. However, studies in humans have found mixed results. Some studies have found it has no effect upon either appetite or metabolic rate, whilst others showed increased weight loss compared to the use of a placebo.
  • Acai (50 mg): A berry that has been wrongly hyped up as a weight-loss super-food, Acai berry use in diet pills has rocketed in recent years. Acai berry is high in Anthocyanins, antioxidants which may help to protect the body against cancer, inflammation, aging, neurological diseases, diabetes, and bacterial infections. However, any claims that it aids weight loss are unproven.
  • L carnitine (50 mg): Supplementation of this ingredient has been found to improve fat oxidation.
  • Vitamin B3 (Nicotinamide) (8 mg): Vitamin B3, or Niacin, is responsible for helping to produce energy from consumed food, as well as helping keep the nervous and digestive systems healthy. Niacin can be easily sourced in adequate amounts from a balanced diet. Persistent excessive consumption of niacin has been linked with increased rates of obesity in American Children.
  • Vitamin B2 (Riboflavin) (0.7 mg): This vitamin is used for keeping the eyes, skin and nervous system healthy, as well as helping the body to release energy from carbohydrates. It is naturally present in milk, eggs, rice and fortified breakfast cereals, and so people should be able to get their daily guideline amounts from a healthy balanced diet.
  • Vitamin B6 (Pyridoxine) (0.7 mg): Vitamin B6 has several important functions in the body, including ‘allowing the body to use and store energy from protein and carbohydrates in food’. Whilst taking excess amounts of vitamin B6 will not infinitely improve this ability, a deficiency could make it more difficult to lose weight. Vitamin B6 is naturally present in a wide variety of foods, including meat, cereals, bread and vegetables, and is often included in fortified breakfast cereals.
  • Chromium Picolinate (166.67 mcg): This is used primarily to lower fasting blood sugar levels and to lower insulin levels in people who have type 2 diabetes. In terms of its potential effect upon weight loss, it is possible that taking chromium picolinate by mouth for 2 to 3 months might produce a small weight loss of about 1.1 kg. Obviously, this is an incredibly small amount of weight loss, but studies are still inconclusive.

Grenade Killa Ketones Side Effects

The majority of ingredients used in diet pills can cause a range of side effects. The likelihood of each side effect occurring vary between each individual user, and also depend upon the quantity of each ingredient within the diet pill.

The health of the consumer is also a significant factor. Dosage, the time and frequency with which the pill is taken, and even the food and drink consumed by the diet pill user can affect the chances of side effects from occurring.

Caffeine is one of the main ingredients used in Grenade Killa Ketones: its use can cause headaches, increased blood pressure, increased heart rate, heart palpitations, increased urination, dehydration, jitteriness, dizziness, and insomnia.

Chromium Picolinate can lower blood sugars levels and as such should not be used by diabetics without first consulting their doctor. Low blood sugar levels can lead to lightheadedness, dizziness, and fainting. Customers who have not eaten for several hours are more likely to experience these side effects.

White Kidney Bean is a carbohydrate blocking ingredient. It is possible that whilst the body is getting used to the effects of the carb blocking elements of Grenade Killa Ketones, users may experience stomach pains, increased bowel movements and flatulence. Some users of carb blockers in general report severe gas and bloating throughout their use of the products. Discomfort and tenderness in the stomach are not uncommon, and heartburn is also reported. Consuming carb-heavy meals can result in diarrhoea, as a large amount of food is passing through the body unprocessed. This diet pill contains a small quantity of White kidney bean, so side effects are likely to be minimal.


Not for use by individuals under the age of 18. Consult a physician or healthcare professional before using this product if you have any medical concerns/allergies. DO NOT USE if you are pregnant or lactating. DO NOT consume this product if you suffer from high blood pressure or are using any other prescribed medication. DO NOT consume more than 2 capsules at a time. Avoid consuming this product less than 6 hours prior to sleeping. Reduce or discontinue using this product if you feel unwell after consuming and seek medical advice. DO NOT consume this product in conjunction with any other product containing caffeine or other stimulants. This food supplement should not be used as a substitute for a varied diet. CONTAINS CAFFEINE 200MG PER DAILY DOSE. NOT RECOMMENDED FOR CHILDREN OR PREGNANT WOMEN.

Grenade Killa Ketones Customer Feedback

As the product is available on Amazon, there are a few reviews from customers available. The majority of these reviews are positive, with customers noticing a boost to their workouts, increased weight loss and more energy.

This product is absolutely fantastic. Combined with “Insanity” workouts together with the nutrition plan that goes with Insanity, I have consistently lost between 1.5 + 2.5kgs every week that I have followed the plan religiously. They give me an extra boost for my workouts, and are clearly a good fat burner! So happy with these.

I have always been wary of using Ketones products as they seem a bit of a fad. I bought some of these and they do not have the same harsh side effects as normal fat burners. I feel more energetic after 3 days, so will see what its like after the full month. So far so good and definitely recommend. Still need to watch what you eat and exercise of course 🙂

There are also customers who have left negative reviews, as they are disappointed with the product.

It worked for a couple of weeks , worked we’ll had a lot of energy at first but then I just didn’t see any results so I stopped taking them , not good in the long run but still okay !

Did not work for me.

Didn’t feel a thing! Rather go back to normal grenade.

Experienced palpitations and headaches, after a week or so it settled and i felt a bit more awake. Not ordering another months worth. Be careful – the packaging is a nightmare to open/close, transferred them into a little tub so I wouldn’t lose them!

Grenade Killa Ketones Money-Back Guarantee

Grenade does not offer a money-back guarantee, but do have a 14 day returns policy. There is a hefty re-stocking and administration charge of £19.50 for goods that are not faulty or have not been sent in error.

Where To Buy Grenade Killa Ketones

Each bottle contains 60 capsules, enough for 30 days of use. From the manufacturer’s website,, one bottle costs £29.99, plus delivery. offers a single bottle for £19.14, with free delivery within the UK. Holland and Barrett offer the same sized bottle for £29.99, with free delivery. offer a free gift of a product sample with any purchase of Grenade Killa Ketones, and have priced the diet pill at £19.75 for a single bottle. They offer discounts for purchases of multiple bottles, with purchases of two or more bottles reducing the price to £18.17 each, or purchases of four or more bottles reducing the price to £17.38 each.

Watchdog Verdict

Grenade, the manufacturers of Grenade Killa Ketones, are a company that we would suggest customers avoid purchasing directly from, purely because of their ridiculous returns policy; customers are charged a huge restocking fee on their returns, as well as having to pay for return shipping, and so could possibly end up with only a few pounds of their initial spend returned.

Luckily the product is available elsewhere for customers who are still interested in the product itself, and it is generally significantly cheaper if customers shop around. But, we do not recommend Grenade Killa Ketones because frankly, there are much better diet pills available.

Despite there being customer reviews that are positive, there are also reports of side effects and a lack of results in some customers. The ingredients profile is a mix of a few ingredients that are clinically proven to aid weight loss, a laxative, small amounts of a carb blocker, and numerous ingredients that have received only preliminary research, with little or no research in humans. With this inadequate ingredient list, some weight loss is possible, but it is by no means guaranteed, or likely to be significant.

How does Grenade Killa Ketones compare to Phentaslim?

CriteriaGrenade Killa Ketones ComparisonPhentaslim comparison
Clinically Proven Ingredients
Side Effect Free
Positive Customer Reviews
24/7 Support
Money-back Guarantee

Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

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