Rapid Slim

Updated May 23, 2019.
Published Mar 29, 2019.

Rapid Slim is a weight loss supplement designed to be used in combination with the Keto diet. The aim of the Keto Diet is to enable your body to use stored fat for fuel rather than to obtain energy by eating carbs as is normal. So, unless you are on the Keto Diet, Rapid Slim will not help you. However, if you are trying to stick to a very low carb diet, some people say that taking BHB Salts helps.


  • Unlikely to cause side effects
  • Not overly expensive
  • Sold via Amazon


  • Only aimed at people following the Keto Diet who are trying to maintain Ketosis
  • Unlikely to have any effect
  • No genuine independent customer feedback
Rapid Slim
Rapid Slim is a supplement that is aimed at people following the Keto Diet. And according to the label, it offers lean and sexy rapid fat burn for all ages and shapes. Let’s take a look and find out more.

There is very little background information to Plant Pure Rapid Slim, the company marked on the label of this supplement. The company selling this supplement via Amazon is called Fit Rich Lifestyle but although there is a website, it is unfinished. None of this looks well thought out or impressive.

Rapid Slim Overview

What you need to know about Rapid Slim

Rapid Slim is a supplement that is supposed to support the Keto Diet and make it easier to maintain Ketosis. It contains a very low serving size of BHB Salts at just 800mg, which is unlikely to have any effect whatsoever. There is no evidence that this supplement will work as described and although a 60-day money-back guarantee is advertised, we feel it is unlikely that you will be refunded if you are dissatisfied. Overall, this looks to be yet another example of a supplement jumping on the current Keto bandwagon.

What are the side effects of Rapid Slim?

BHB Salts may cause gastric issues such as diarrhoea and stomach pains if taken in high levels but with the low serving size in this supplement, side effects are unlikely to be an issue.

How much does Rapid Slim cost?

Rapid Slim is overpriced seeing that it is highly unlikely to work. You can only buy via Amazon where 1 x bottle of 60 capsules costs $20.97. It is sold by a company called Fit Rich Lifestyle (classy name guys) and you can get a discount if you buy the supplement in bulk.

There is 5% off if you buy two bottles. This goes up to 25% if you buy six bottles.

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Rapid Slim Key Features

Rapid Slim is a weight loss supplement designed to be used in combination with the Keto diet. The Keto Diet is very popular right now because cutting out carbs does lead to weight loss. Many people have lost weight successfully with it, and there are countless books and supplements available that all claim to help support the Keto Diet.

Rapid Slim Key Points

  • Only on sale from Amazon via a company called Fit Rich Lifestyle
  • Each bottle contains 60 capsules
  • Only suitable if you are following the Keto Diet

The aim of the Keto Diet is to enable your body to use stored fat for fuel rather than to obtain energy by eating carbs as is normal. When the body is deprived of glucose in this way, your body fat is broken down into ketones – chemicals made in the liver and these provide the energy used for fuel. This is the state known as ketosis and it is one of the body’s survival mechanisms that kick in at times of low food.

How to Take Rapid Slim

  • Take two capsules by mouth once a day

Rapid Slim contains Beta Hydroxybutyrate Salts (BHB Salts), an organic substance which is supposed to help speed up the process of ketosis by helping the body use fatty acids from the liver as energy rather than carbs.

So, unless you are on the Keto Diet, Rapid Slim will not help you. However, if you are trying to stick to a very low carb diet, some people say that taking BHB Salts helps. Check out the ingredients tab to find out more.

Rapid Slim Concerns

  • Looks like a total waste of money
  • Will Fit Rich Lifestyle honour the money-back guarantee as promised?
  • No website. Not even a Facebook page. Does Fit Rich Lifestyle/Plant Pure have something to hide?

Rapid Slim seems to be solely on sale via Amazon and seems to originate from Utah because there is an address printed on the label which gives the company name of Plant Pure, and provides a PO Box in Utah as the only address. However, it is on sale from a company called Fit Rich Lifestyle on Amazon and there is a website! This sounds good but the website is unfinished and has no information save a picture of Rapid Slim. It seems likely that Plant Pure and Fit Rich Lifestyle are the same company.

Originating from Utah is always a bit suspicious. Utah is known as the centre of the diet pills industry and also well known for scammers. So, a PO Box in Utah has to be about as dodgy as you can get! That said, buying from Amazon takes away the risk of falling prey to scammers.

What does Rapid Slim claim to do?

According to the label, this supplement it “offers lean and sexy rapid fat burn for all ages and shapes”.

The advertising does not tell us much in the way of hard facts,

“Rapid Keto Slim has been formulated with powerful fat-burning ingredients that are gluten free and non-gmo. Rapid Slim has also been formulated to work for men and women. Entering Ketosis quickly helps to melt fat away and begin burning fat for fuel instead of carbs.”

The product information explains the ingredients,

“BEST ESSENTIAL FAT BURNER: BHB (beta hydroxybutyrate) is formulated in a way to help boost your body to burn fat instead of carbs for energy. Using these BHB salts it helps you to quickly enter ketosis to burn unwanted fat to promote healthy weight loss, and boost mental focus and clarity with its low-carb keto slim diet.”

Does Rapid Slim work?

It seems unlikely to help weight loss in the way as described. And unless you are really aiming at achieving ketosis and sticking in it, rather than just cutting back on carbs, this supplement is not relevant to most users. It won’t provide “lean sexy fat burn”. And a Keto diet is certainly not safe for all ages and all shapes of users. It is an extreme diet that is not easy to follow and most people will fail.

One of the problems with following the Keto Diet is that it is extremely difficult to maintain. You have to avoid carbs and one slip up will make your body stop running on ketosis. According to keto experts, around 50g of carbs is enough to tip you back into carb burning mode. There is an idea that taking BHB Salts will bring your body back into ketosis, but there is no real evidence that it works.

Rapid Slim contains very low servings of BHB Salts but even at higher levels, there is little real proof that exogenous ketones work in the same way as the BHB present in your body. There are no short cuts to ketosis beyond cutting down on carbs so that they form no more than 20% of your daily diet – the remaining 80% is made up of fat and protein.

Health experts question the safety of following a diet that is so low in carbs it causes ketosis. It means that you do miss out on a whole food group because carbs are the source of fibre, natural sugars, fruits, and vitamins.

The health journal, the Lancet, agrees that we should reduce the amount of refined carbs we eat – such as pastries, white bread, and sugar, but cutting out complex carbs such as beans, pulses, fruits, and vegetables is just not good for long term health.

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Rapid Slim Ingredients

Serving size is equal to two capsules.

  • Proprietary blend (800mg): Beta-Hydroxybutyrate (BHB) is a naturally occurring metabolite in the body that is formed during fat digestion and metabolism and is known as a ketone body. Ketones are energy molecules derived from fat and BHB is an energy dense molecule that provides energy for the brain, heart, and muscles during periods of low carbohydrate intake. Scientists are investigating the health benefits of BHB in anti-aging, and it may be an important nutrient for many health benefits rather than just an alternative source of energy for the body.

Exogenous ketones (meaning made outside of the body) as BHB salts are also known may help your body stay in ketosis. The blend is composed of Magnesium Beta Hydroxybutyrate, Calcium Beta Hydroxybutyrate, and Sodium Beta Hydroxybutyrate. These are Hydroxybutyrate combined with mineral salts that are also present in the body.

Taking a supplement that supposedly contains this natural substance is not the same as generating it in your own body by not eating carbs. Serving size here is very low compared to many other BHB Salts supplements we have seen which, in general, contain around 7000mg per serving.

Rapid Slim Side Effects

BHB Salts may cause gastric issues such as diarrhoea and stomach pains if taken in high levels, but with the low serving size in this supplement, side effects are unlikely to be an issue.


Not suitable for individuals under 18. Avoid if you are pregnant or breastfeeding. Speak to your doctor before embarking on a keto diet.

Rapid Slim Customer Feedback

There are only a few customer reviews for Rapid Slim on Amazon. We checked these out on scam software and found that none of these were reliable, and were likely to have been written by genuine customers.

Most comments are positive and along the lines of,

This product works great and does not have any side effects like other pills. Definitely the right product to get it you want to lose weight fast.

The one negative feedback comment is also likely to be fake and is to show customers that they can get their money back if dissatisfied.

Returned. Ingredient =magnesium.

Rapid Slim Money-Back Guarantee

There is a 60-day money-back guarantee advertised. The product information says,

“Don’t worry, we provide a 60-day money back guarantee because we are so confident in our rapid keto weight loss supplement”

If you want to claim your money back, you will have to contact the company via Amazon. There are no details about whether you have to return your package, pay a restocking fee, or obtain an RMA number.

Where To Buy Rapid Slim

At the time of writing, Rapid Slim is only available from Amazon USA.

Watchdog Verdict

We do not rate Rapid Slim very highly. This looks to be a very mediocre supplement that has obviously been launched to cater for the rising popularity of the Keto Diet, but we think it is unlikely to work in the way as described.

The evidence for BHB Salts as a way to cheat your low keto diet is just not proven. All research into BHB is in early stages and although some animal testing suggested there may be health and anti-aging benefits, taking BHB Salts does not seem to support the Keto Diet in humans. In addition, the serving size is very low compared to other products on the market.

Rapid Slim is sold on Amazon via a company called Fit Rich Lifestyle and although there is a website for this, it is unfinished. The main information about this product’s background pinpoints it to an enterprise called Plant Pure Rapid Slim operating from a PO Box in Utah. We just don’t trust any of this, and we don’t believe this supplement will make a scrap of difference to your Keto Diet.

We don’t recommend Rapid Slim to the Watchdog readers.

How does Rapid Slim compare to Phentaslim?

Criteria Rapid Slim Comparison Phentaslim 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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