keto fit reviews

Does Keto Fit Work? Read This Before You Buy

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Last modified on January 11th, 2023

Keto Fit and Exogenous Ketone Supplements

There are a few different Keto Fit supplements you’ll find on Amazon. One of the most popular is called Pure Keto Fit from Justified Laboratories. In this guide, we’re primarily covering Pure Keto Fit, but we’ll go over a few of the other products that go by this name as well. All of these supplements are similar in what they’re supposed to do, which is basically provide exogenous ketosis.

They’re also known as BHB supplements, so if you aren’t familiar we’ll give you a rundown on these supplements in general, including whether they’re safe and effective.

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Key Things to Know About Keto Fit

The Pure Keto Fit supplement from Justified Laboratories claims to be a proprietary blend of something called goBHB. It also has ingredients like apple cider vinegar, macadamia nut oil, and green tea leaf.

The makers of Pure Keto Fit pills claim that if you take this BHB supplement, you’ll enter ketosis easier and stay there. According to the Keto Fit company, the inclusion of apple cider vinegar and macadamia nut oil help you safely transition to ketosis more effectively.

Each bottle of Pure Keto Fit from Justified Laboratories contains 60 vegetable capsules, which is a 30-day supply.

According to the instructions, you should take Keto Fit 20 to 30 minutes before a meal with an eight-ounce glass of water.

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What is Ketosis?

If you’re new to the keto diet, you might think you can take Keto Fit and be in ketosis, and it’s not that simple.

Ketosis is a metabolic state where your body is producing something called ketones and using those ketones for energy instead of carbs. On the keto diet, the goal is to get your body into a state of ketosis by following a high fat, low carb diet.

People often lose weight and sometimes significant amounts when they follow a keto diet. You might even notice weight loss happening pretty quickly because being in ketosis reduces your body’s water and glycogen stores.

Over the long-term, you might notice you have a reduced appetite as a result of ketosis.

The following are some of the key things to know about ketosis. Understanding these facts is important before you invest in a supplement like Keto Fit.

  • When you’re in the metabolic state of ketosis, there’s a high concentration of ketones in your blood. This happens when fat is fueling your body, rather than glucose.
  • To be in ketosis, you usually need to eat fewer than 50 grams of carbs a day, and some people need as little as 20 grams of carbs a day.
  • When you’re limiting your carbs, your insulin levels go down, and your body’s fat stores release fatty acids in large amounts.
  • These fatty acids move to the liver, where they’re turned into ketones, to provide energy for your body.
  • Interestingly, ketones can also cross the blood-brain barrier to fuel your brain.
  • There is a potentially wide range of benefits of ketosis. For example, there’s some evidence that along with helping with weight loss, it can also help with conditions like epilepsy and neurodegenerative disorders. It may help with type 2 diabetes, PCOS and heart disease.

If you were eating anywhere from 20 to 50 grams of carbs a day, it would probably take two to four days to enter ketosis. It can take longer for some people. The length of time it takes you to reach ketosis depends on your fat and protein intake, your metabolism, your age and how much you exercise.

If you ate a very high carb diet before beginning a keto diet, it could take you longer to enter ketosis, for example.

When you transition to ketosis, you might notice symptoms that are referred to as the keto flu. These symptoms can include bad breath, increased thirst, fatigue, nausea, and headaches.

You can measure your ketones in different ways.

For example, there are cheap strips that use urine to give you a general idea of your ketone level. There are also breath meters and blood ketone meters.

Some of the ways you can get into ketosis faster include:

  • Limit your carbs as much as possible. The aim is to have no more than 50 grams of carbs a day,  but the lower you can go, the better for ketosis. You should track your carb intake because most of us do tend to underestimate it.
  • Don’t eat at restaurants because it’s harder to track how many carbs you’re consuming.
  • Be aware that there are often carbs in hidden sources like condiments and sauces.
  • Eat plenty of high-quality fats such as nuts, nut butter, coconut oil, meats, eggs, and fish like salmon.
  • Intermittent fasting can help you get into ketosis.
  • Using an MCT supplement may help. MCT is a fat that’s easily absorbed by the body and then transformed into ketones.
  • Exercise can help deplete glycogen stores and help your body produce more ketones.

What is Keto Fit?

All of this brings us back to Keto Fit. This supplement claims that by using it, you can get into ketosis faster. The supplement makers also say that by using Keto Fit Pills, you’ll see less fatigue during your workouts, it will improve your mental clarity and reduce brain fog, and will improve your focus.

How much of that is true?

Keto Fit can be classified as an exogenous ketone supplement.

Exogenous keto supplements claim to give you the benefits of a keto diet and boost the effects of a keto diet without you having to limit your carbs.

You might, for example, want to fall off your low-carb, high-fat diet for a treat. Theoretically, using a supplement like Keto Fit, you could take a couple of capsules, and then you’d stay in ketosis.

Exogenous means created externally, and Keto Fit and other exogenous supplements are types of the ketone beta-hydroxybutyrate or BHB.

Keto Fit and other exogenous ketone supplements could, based on claims, raise your blood level of ketones, and so you can stay in ketosis even after eating something higher in carbs. You might also use Keto Fit or another BHB supplement to get into ketosis faster after starting a keto diet.

There are three main types of ketone supplements that fall into the larger category of BHB supplements.

There are ketone esters, which contain a BHB molecule bound to an alcohol molecule. Ketone esters can raise your ketones, but they’re expensive, don’t taste great, and they’re a relatively new product, so there’s a lot we don’t know about them.

Ketone salts are bound to a mineral, and these cause digestive symptoms for some people.

There are raspberry ketones as well, which, as far as we know now, don’t do anything to raise your ketone levels.

Do they work?

Continue reading to see what the research says.

Does Keto Fit Work?

The big question is, does Keto Fit work, and do other BHB supplements work?

The answer is that it depends.

If you eat a diet heavy in carbs, you’re not going to get magic or overnight results from a supplement like Keto Fit.

There’s the misconception that the presence of ketones means you’ll automatically burn fat, and that’s not the case.

However, this doesn’t mean that a BHB supplement isn’t entirely without benefits if you manage your expectations.

Experts recommend that you only view a supplement like Keto Fit as just that—a supplement to the keto diet. Keto Fit can help you along the way if you’re following a keto diet, but you still have to do the tough stuff to see the benefits and results.

For example, taking Keto Fit might help reduce your appetite, and that can indirectly help you lose weight.

There was a study of 15 people who had a ketone beverage, and they experienced 50% less hunger after an overnight fast than a group that had a sugary beverage. If you’ve had a meal beforehand, a ketone supplement might not reduce your appetite as much.

As was touched on, BHB is one specific type of ketone. When you have higher levels of BHB ketones, your hunger tends to be in the background rather than the foreground. This lets you focus on other things in your life aside from hunger.

There was a study that found having certain keto supplements may reduce blood sugar too.

The big takeaway with Keto Fit and other types of BHB and keto supplements is that they will be ineffective if you aren’t following a keto diet in general.

What do Keto Fit Reviews Say?

Again, we looked specifically at the Keto Fit formula from Justified Laboratories. On Amazon, the Justified Laboratories Keto Fit supplement only has an average of 3.5 stars, out of nearly 800 ratings. We weren’t impressed by this.

A lot of reviewers said Keto Fit made them feel sick, and most Keto Fit reviews didn’t feel like it’s an effective supplement either, at least in terms of weight loss.

With that being said, there are some positive Keto Fit reviews. For example, one reviewer said that taking Keto Fit helped her get into ketosis faster—in two days—although she was actively following a keto diet and lifestyle.

For some of the people who like the supplement, in addition to ketosis and weight loss, they say they feel Keto Fit improves their energy levels.

Are There Risks and Side Effects of Keto Fit?

So, while taking Keto Fit and other exogenous supplements can help someone who’s already following a keto lifestyle, are there downsides?


There have been some studies that have found supplements like Keto Fit don’t boost ketosis, and in addition, can cause side effects like stomach pain and nausea.

Also, more ketones isn’t necessarily a good thing when you’re taking them in supplement form. If you use a ketone supplement, it can raise the level of acid in your blood, and that makes it harder for your body to break down fat.

Ketones also contain calories, and another big issue for a lot of people is the fact that they’re expensive.

You could be better off putting your money toward healthy, keto-friendly foods as opposed to trying to take a shortcut with keto supplements.

Also, a big issue with Keto Fit, in particular, is the fact that we couldn’t find exactly what’s in it. The ingredient label says it’s made with a proprietary blend, so it’s tough to evaluate the product fully without knowing what’s truly in it.

Other Keto Fit Supplements

There are some other products on Amazon that go by the Keto Fit name. The idea is the same behind all of them.

For example, there’s Platinum Fit Keto.

Platinum Fit Keto is similar in name and function to Keto Fit. Platinum Fit Keto is from the Advance Custom Labs company, and it contains BHB to theoretically support ketosis and boost your energy levels. Platinum Fit Keto doesn’t have some of the extra ingredients in Keto Fit, like apple cider vinegar.

Platinum Fit Keto has reviews similar to Keto Fit. They’re pretty mixed. A lot of people say they used Platinum Fit Keto and got no results, while other people say it helped them lose weight.

While there are some good reviews of Platinum Fit Keto, most aren’t good.

Another similar product is called Keto Fit Pro, which is billed as an “advanced ketosis weight loss” supplement.

It’s a BHB supplement that, based on claims, can help your body release stored fat. With an average  of three stars on the ratings, we don’t see much promise in this product either.

Finally, there’s also a product called Keto Fit Advanced Formula. Keto Fit Advanced Formula is also a BHB exogenous ketones supplement that has mixed reviews and a fair amount of negative ones.

Final Thoughts—Should You Buy Keto Fit?

In our honest opinion, exogenous ketones in general, aren’t worth the money. There is a bit of evidence primarily in animal studies that exogenous ketone supplements like Keto Fit, Platinum Fit Keto, Keto Fit Pro and Keto Fit Advanced Formula could raise your blood level of ketones, but they can’t overcome a diet high in carbs.

There’s also not a lot of evidence that by raising your level of BHB ketones that it’s actually going to help you lose weight.

Some people look to products like Keto Fit and Platinum Fit Keto as a fast way to get the benefits of a keto diet, and it’s probably not going to work.

The only way you might find some benefits with these products is if you already follow a strict keto diet and you just want a little extra boost toward ketosis. Otherwise, save your money.

Follow a low-carb, high-fat diet, exercise when you can, and make sure you’re getting electrolytes from whole food sources like potassium and bone broth, and you’ll be better off than buying quick-fix solutions that don’t work and may even have negative side effects.



What is BHB and Should You Be Taking It on Keto?






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