Top 5 Best Exogenous Ketone Supplements Comparison (2021)


Top 5 Best Exogenous Ketone Supplements Comparison (2021)

The ketogenic diet has earned a cult following in recent years. At its base level, it is a high fat, moderate protein and minimal carb diet. The goal of entering ketosis can be achieved quicker by utilizing some of the best exogenous ketone supplements we now have at our disposal. Ketosis is the metabolic state in which ketones are used for energy, during times of limited glucose availability.

Ketosis is generally achieved on a low-carb diet of around 20-50g per day, but this varies between people. During the 'transition phase', which might last a couple of weeks without supplementation, people can report brain fog, hunger and low energy. Blood ketone levels can be tested for a more accurate look at whether or not you are actually in ketosis.

In this ketogenic state, people often report increased and more sustained energy levels, increased athletic performance (especially seen in endurance athletes), increased mental performance and weight loss.

Exogenous ketone supplements comparison chart (top 5 highest rated products)

Product Best For Our Rating Pricing
Keto Salt Complete keto supplement 9/10 Check Price
Keto Aminos Drinking during workouts 8/10 Check Price
Keto Tea High energy morning drink 8/10 Check Price
Keto Weight Loss Fat burning properties 7/10 Check Price
Keto Genius Nootropic support 9/10 Check Price

What is an exogenous ketone supplement & what does it do?

Exogenous (from outside the body) ketone supplements are designed to increase the amount of ketones in our body. Ketone supplements tend to come in one of two forms, either as salts or esters. Esters like beta-hydroxy-butyrate or butanediol monoester have a fast and rapid effect at a low dose, whereas salts like BHB are cheap, tasty and supply electrolytes.

Exogenous ketone products are best taken by those following a keto diet. The supplement can aid the transition into ketosis, support cognitive function and aid fat loss by suppressing appetite.

What is the best exogenous ketone supplement? Here’s our 2021 top 5 list:

With so many ketone supplements on the market, it can be difficult to know which is best for you. We have an extensive range of ketone salts, ketone esters and more here at Predator Nutrition to support your ketogenic diet by increasing blood ketone levels.

Keto Genius (best for cognitive support)

Keto Genius is the ultimate keto-friendly nootropic supplement with exogenous ketones BHB Salts and synergistic nootropics Alpha GPC, TeaCrine® and Dynamine™. Boost memory, learning, energy and mood without stimulants. Perfect to enjoy in a morning with a black coffee to get your day off to a productive start before consuming your first meal.


  • BHB Blend
  • Electrolytes
  • Alpha-GPC
  • Dynamine
  • Teacrine

Keto Asalt

Keto Asalt by 5% Nutrition contains their keto drive performance complex ' Calcium Beta-Hydroxybutyrate (as goBHB®), Sodium Beta-Hydroxybutyrate (as goBHB®), Magnesium Beta-Hydroxybutyrate Trihydrate (as goBHB®)' alongside complimentary ingredients for hydration, fatty acid mobilization and antioxidant support.


  • B Vitamins
  • Electrolytes
  • L-Carnitine L-Tartrate
  • Coenzyme Q10
  • Ketone Salts

Keto Aminos (best for during workouts)

Keto aminos are the perfect recovery support to consume during workouts while on a keto diet. BHB salts and medium chain triglycerides (MCTs) in the product help support mental and physical performance while amino acids help rebuild and repair muscles broken down during exercise.


  • Essential amino acids
  • Glutamine
  • Citrulline
  • MCTs
  • BHB salts

Keto Tea

A caffeinated option, Keto Tea is a blend of exogenous salts, medium chain triglycerides (MCTs) and tea perfect for dieters looking to increase energy and mental clarity while losing weight on a keto-style diet. The perfect weight loss supplement to get your day off to a strong start!


  • MCTs
  • BHB salts
  • Green tea
  • Electrolytes
  • Caffeine

Keto Weight Loss (best for dieting)

Keto Weight Loss contains BHB which helps to promote ketosis within the body. It also contains fat burning ingredients such as caffine, guarana and cocoa to help you burn fat without side effects such as low energy. MCTs and coconut oil powder are added to give your body a fuel source while on very low carbs.


  • BHB
  • Guarana
  • Caffeine
  • MCTs
  • Coconut oil powder

What are the best exogenous ketones on the market? Our conclusion

There are many health benefits that can come with supplementing exogenous ketones and supporting the production of endogenous ketones, especially when supported by adhering to a strict ketogenic diet. These include appetite suppression, mental focus and physical performance. Above we have outlined 5 of our top picks, depending on goal, which can be supported with MCT supplements and lots of quality fatty foods like coconut oil, grassfed butter, steak and bacon.


Is MCT oil the same as exogenous ketones?

No. MCTs promote our body's own (endogenous) ketone production. When MCTs, such as those found in MCT oil, are broken down by the liver, ketones are produced. As they work through different means, MCT oil can be used in conjunction with exogenous ketones to enter a state of ketosis.

Do you just pee out exogenous ketones?

Ketones that are not being used will be passed in urine. When someone is truly in a state of ketosis, more of these will efficiently used. If just anyone were to take an exogenous ketone supplement, the benefits might only be experienced for a couple of hours.

Can exogenous ketones make you gain weight?

If you are in a calorie surplus which trying to reach ketosis, you will gain weight. Simply limiting carbohydrates is not enough, you need to be consuming less total calories than expend. An exogenous ketone supplement can help your body reach a fat burning state.

Do exogenous ketones get you into ketosis faster?

Exogenous ketone can help you get into ketosis faster and avoid or shorten the dreaded keto flu symptoms. High ketone levels in the blood can help guide your body towards using them as fuel while adjusting to a limited carbohydrate diet and/or intermittent fasting.

Can exogenous ketones make you tired?

You may feel tired and hungry before the supplement begins to work as your body gets used to the new diet. Supplementing exogenous ketones can shorten this period so that you can more quickly feel the energy boost that comes with being in true ketosis.

How long does it take for exogenous ketones to work?

Exogenous ketones can elevate BHB in the blood for up to 8 hours. This can shorten time to get into ketosis, which might take up to 2 weeks without the use of keto supplements to aid the process. Signs of them working include better focus.


About the Author


Savannah is part of the team here at Predator. Her qualifications include a degree in Sport and Exercise Nutrition alongside a background working in the supplement industry. She has also been an active bikini competior since 2016. 

Social: @SavannahWesterby