Purefit Keto Supplement Review

💪 What Is Purefit Keto

The ketogenic diet, keto for short, is a low-carb, moderate protein, high-fat weight loss diet. Following keto puts dieters into a metabolic state called ketosis, where fat and not glucose is the body’s primary fuel. It is commonly associated with very rapid weight loss, especially during the early stages of the diet – known as keto induction or transition.

Some dieters use supplements to improve their results on keto, including medium-chain triglyceride oil, fat burners, and meal replacements. It is another popular keto diet supplement.

It is an exogenous ketone product. Exogenous ketones, which are simply ketones from an external source, artificially increase your ketone levels, which is very beneficial on the ketogenic diet. It comes in 60-capsule bottles, which is a 30-day supply when used as per the manufacturer’s instructions.


What Are The Ingredients In Purefit Keto?

Purefit lives up to its name – it’s a mostly pure exogenous ketone product. With just three active ingredients and a couple of inert fillers, it’s easy to identify how and why this product works. Purefit describes their capsules as “natural,” and while the chemical names of the ingredients may make this product look anything but natural, it contains substances that are produced in the body.

Keto bodytone bottles

Compared to the long list of chemicals usually found in other fat burners, it is a very natural product.

🔖 Main Ingredients

Purefit contains a type of salt called beta-hydroxybutyrate, or BHB for short. Keto-salts are so-called because they are chemically bound to various minerals. Minerals are often called salts. Keto-esters, another type of ketone, are not stable and are not used in supplements. Raspberry ketones, another ingredient in some keto-diet products, are not real ketones at all and your body cannot use them.

In contrast, BHB is the same type produced in your body during ketosis. Because of this, they are recognized by your body and used for energy. There are three types of BHB in this product. Each one works slightly differently, but they are all-natural that your body can use.

  • Sodium BHB – an excellent source of energy during physical activity and exercise
  • Calcium BHB – the most abundant ketone produced during ketosis
  • Potassium BHB – used by your body as an alternative energy source to glucose

🔖 Additional Ingredients

They come in powder form and are packed into 400mg capsules, and those capsules are made of gelatin. Gelatin is derived from animal bones and hides. Unfortunately, this means that it is not suitable for vegetarians and vegans.

To stop the capsules sticking together and prevent the keto-salts from turning into solid, indigestible pellets, it also contains magnesium stearate and rice flour. These substances are inert, which means they don’t affect how Purefit works. Instead, they just make this product easier to use.

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How Does Purefit Keto Work

The exogenous BHB in Purefit artificially raise your ketone-levels. Because BHB is the same type that is produced by your body, they can be used for fuel and a host of other important diet-related functions.

keto bodytone bottle next to a magazine with a beautiful woman in the coverWhen you go on keto, you have to cut your carb intake to less than 50 grams per day. With no carbs to use for fuel, your body has to start using more fat. Unfortunately, your body cannot use pure fat for energy, and it turns some of the fat into an energy source it can use – ketones. They can then be used in place of the glucose that is usually obtained from the carbs in your diet.

Your body does not start producing them the minute you stop eating carbs. In fact, it can take a few days to two weeks for your body to start producing an abundance of ketones.

Why The Delay? Good Question!

Your body contains a lot of stored carbohydrate. These stored carbs are called glycogen. You have glycogen in your muscles and your liver. Until these stores are fully depleted, your body won’t start producing meaningful amounts of ketones.

During this period of induction or transition, your glycogen levels are running low, but you aren’t yet producing ketones. With no viable source of energy available, many dieters experience a host of symptoms and side effects, collectively called the keto-flu. Signs of it include headaches, stomach upsets, fatigue, brain fog, cravings, and muscle cramps.

Taking exogenous-ketones artificially increases the ketone-levels in your body so that you have energy until you start producing ketones naturally. They also help trick your body into producing ketones sooner and in more significant amounts. Think of Purefit as an effective way to jump-start ketone production – like jumper leads on a flat car battery.

woman on a beach chair with the ocean behind her

As your glycogen levels start to fall, your body will start making more and more ketones. With no glycogen left to use, your body will produce all the ketones you need, and you’ll be in full ketosis. At this point, all your keto-flu symptoms will vanish.

Purefit is not just useful during keto transition, it can also help once you enter ketosis. Increasing your levels so that they are higher than usual will ensure you have lots of energy for exercise, better mental clarity, and less hunger. In short, exogenous ketones supercharge your already-effective keto diet.

How To Use Purefit Keto

woman taking pills with water

To get the most from this product, or any other supplement for that matter, it is essential you use it as per the manufacturer’s instructions. It is super-easy to use so that should not present a problem!

Simply shake the bottle to loosen the contents and then pop two capsules in your mouth. Don’t chew them but, instead, just wash them down with a gulp or two of water. Don’t try to take them with a warm beverage like tea or coffee; the capsules may dissolve in your mouth, and BHB salts taste terrible!

You can take your two-capsule dose any time you like. With no caffeine or other stimulants, they won’t disrupt your sleep. However, to get your keto diet day off on the right foot, consider taking your capsules first thing in the morning before your keto-friendly breakfast. Alternatively, if you need an energy boost for your daily workout, take your dose 15-30 minutes before hitting the gym.

Purefit Keto Benefits And Advantages

There is a range of benefits and advantages to using Purefit Keto.

💚 Faster descent into ketosis – taking exogenous ketones will help you get into ketosis faster. The quicker you get into full ketosis, the sooner your body will make the switch from using carbs for fuel to burning fat. If you want to start burning fat sooner on keto, Purefit Keto can help.

💚 Shorter, less severe keto flu – almost all keto dieters suffer from keto flu during the induction phase of their low-carb diet. By artificially increasing and kick-starting ketone production, this product can make the symptoms much less difficult to deal with, and also shorten keto flu to just a few days.

Keto flu is not serious, and nor is it contagious. However, it can be unpleasant enough to put some dieters off keto for good. Anything that can help make keto flu more manageable will be very useful for low-carb dieters.

💚 Increased fat burning – Purefit Keto artificially increases your ketone levels. In response, your body produces more naturally. Endogenous ones are made from fat, and that means the more ketones your body makes the more fat you’ll burn.

💚 Increased energy – without glucose, which we get from carbs, your body uses fat and ketones for energy. Purefit Keto, made from BHB salts, provides your body with a welcome energy boost without calories, caffeine, or sugar. That’s good news for all keto-dieters. Unlike glucose, which can cause a big rise and then an even bigger drop in energy levels, exogenous-ketones like Purefit provides fast-acting but long-lasting energy.

💚 Improved mental clarity – ketones can cross the blood-brain barrier and provide your brain with the fuel it needs to function at its best. Purefit users report increased mental clarity, increased focus, better memory, and improved productivity – even during keto transition when brain fog is all-too-common.

💚 Less hunger – being hungry is every dieter’s nightmare. Hunger can make sticking to your diet much harder than it needs to be. It can even make you cheat on your diet, undoing all your good progress. Purefit has proven to be an effective way to ward off both hunger and cravings, making it much easier to stick to your diet.

💚 Purity – many products contain additional ingredients such as MCTs, caffeine, and pre/probiotics. In contrast, Purefit contains nothing but exogenous-ketones. If you are looking for a pure exogenous-ketone product, then Purefit is a good choice.

💚 Convenience – you can take your dose of Purefit almost anywhere and anytime. Powdered exogenous ketone supplements need to be mixed with water, and that means you’ll have to carry a tub of powder with you and have access to water too. Purefit Keto capsules are much easier to use, and that means you have one less excuse for forgetting to take your daily dose.

💚 No unpleasant taste – these salts do not taste very nice. Even heavily flavored drinks taste nasty, and that can be a real barrier to using them. Purefit capsules do not taste, and that makes them much more pleasant to use.

💚 No insomnia, nervousness, or jitters – most weight loss and fat-burning supplements contain caffeine, lots of caffeine! Caffeine is a useful fat-burning ingredient, but it can also cause a host of unwanted side effects. With no caffeine, Purefit will not cause nervousness or anxiety and can be used at night without disrupting your sleep.

Purefit Keto Disadvantages And Drawbacks

While BHB-salts are on the FDA GRAS list (generally regarded as safe), there are some disadvantages and drawbacks you should consider before using this product.

💔 Low BHB dose – powdered exogenous ketone products usually provide 8-12 grams of exogenous ketones per serving, and most are meant to be used twice a day. Purefit only provides 800mg per two-capsule serving per day, so it’s a bit light on active ingredients. You could take more than two capsules per day, but that will just mean you need to buy more. If you want a large dose of exogenous ketones, you might be better off with a ketone powder product.

💔 Side effects – BHB keto salts IS a GRAS ingredient, but that doesn’t mean it doesn’t have side effects. Common side effects include diarrhea, bloating, and headaches. The good news is that, as you get used to Purefit Keto, these problems will soon vanish. They can often be avoided entirely by introducing and increasing your intake of exogenous ketones gradually.

💔 Only works with the keto diet – Purefit Keto is often marketed as a fat burner and weight loss product. While that is a fair description, exogenous ketones only work if you are on the keto diet. Taking Purefit Keto while you continue to eat carbs will have no effect.


Cutting carbs from your diet and getting into ketosis is one of the best ways to burn fat and lose weight fast. The ketogenic diet is popular for a reason – it really does work! But, getting and then staying in ketosis is not always easy. It takes effort and discipline. There are keto flu side effects to contend with, and most keto dieters experience things like hunger and brain fog from time to time.

The good news is that exogenous ketone products like Purefit Keto can make the entire ketogenic diet not just easier, but more effective too.

By increasing your ketone levels artificially, you can trick your body into producing more ketones sooner than it would normally. This will get you into ketosis faster, flipping your metabolism from carb-burning to fat burning. With more ketones available, you should also have a lot more energy, and far fewer keto flu symptoms.

Once you’ve reached ketosis, Purefit Keto can help keep you there, boosting the effect of the keto diet in the process. Increased ketone levels train your body to produce more ketones naturally, and that further enhances fat burning. Exogenous ketones can also help ward off common keto diet problems like hunger and cravings.

In easy-to-use capsules, and with no extra added ingredients, the BHB keto salts in Purefit Keto are exactly what your body needs to achieve and maintain ketosis for superior fat burning and more energy.

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9 Total Score
Purefit Keto

In easy-to-use capsules, and with no extra added ingredients, the BHB keto salts in Purefit Keto are exactly what your body needs to achieve and maintain ketosis for superior fat burning and more energy.

  • Faster descent into ketosis
  • Shorter, less severe keto flu
  • Increased fat burning
  • Increased energy
  • Less hunger
  • No unpleasant taste
  • Low BHB dose
  • Side effects
  • Only works with the keto diet

Patrick Dale is an ex-British Royal Marine and owner and lecturer for a fitness qualifications company. In addition to training prospective personal trainers, Patrick has also authored three fitness and exercise books, dozens of e-books, thousands of articles, and several fitness videos.

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