While we know that both MCT Oil Powders and BHB salts are proven supplements to increases ketosis, the winner of a top 5 exogenous ketones list I think should be a true direct form of exogenous ketones – one of the BHB salts. Perfect Keto’s BASE takes the win here. The edge ranking factor is its flavor. With stevia-based flavors such as chocolate sea salt, and the fact that it uses zero additives and actually tastes good, this BHB salt is going to have to take the W. They’re the only 100% coconut MCTs that don’t utilize the goMCT™ form.. this is neither a pro or con. And while it doesn’t have the best bang for your buck compared to the other BHB salts on this list, it’s the most proven as far as happy customer track record and consistent high-quality keto supplements.
Baseline measurements showed no significant changes in triglycerides or the lipoproteins (data not shown). Data represent triglyceride and lipoprotein concentrations measured after 4 weeks of daily exogenous ketone supplementation. No significant change in total cholesterol was observed at 4 weeks for any of the ketone treatment groups compared to control. (Fig. 1a). No significant difference was detected in triglycerides for any ketone supplement compared to control (Fig. 1b). MCT supplemented animals had a significant reduction in HDL blood levels compared to control (p < 0.001) (Fig. 1c). LDL levels in ketone-supplemented animals did not significantly differ from controls (Fig. 1d).
We tested the effects of 28-day administration of five ketone supplements on blood glucose, ketones, and lipids in male Sprague–Dawley rats. The supplements included: 1,3-butanediol (BD), a sodium/potassium β-hydroxybutyrate (βHB) mineral salt (BMS), medium chain triglyceride oil (MCT), BMS + MCT 1:1 mixture, and 1,3 butanediol acetoacetate diester (KE). Rats received a daily 5–10 g/kg dose of their respective ketone supplement via intragastric gavage during treatment. Weekly whole blood samples were taken for analysis of glucose and βHB at baseline and, 0.5, 1, 4, 8, and 12 h post-gavage, or until βHB returned to baseline. At 28 days, triglycerides, total cholesterol and high-density lipoprotein (HDL) were measured.
When your body transitions from using energy from carbohydrates to ketones, there can be a lot of nasty and unwanted side effects. These include low energy, bloating, irritability, headaches and fatigue. This is because your body is “in between” burning carbs and burning ketones and hasn’t become efficient at burning ketones and producing them from your fat stores yet.
First and foremost, one of the most important factors is to be discipline when following the ketogenic diet. This means heavily restricting your carbohydrate intake, while switching to high-fat foods and moderate proteins. The general rule of thumb when it comes to splitting your macros out should look something like this: 5% (carbs)/ 80% (fats)/ 15% (proteins). Although if you’re just starting out, I wouldn’t focus too heavily on macros but rather place more importance in restricting your carbohydrate intake to 20 grams or less. Depending on the individual, most keto diets will allow approximately 20g-70g of net carbs as part of your overall daily intake, but if you’re asking the extreme question of ‘how to get into ketosis in 24 hours?’ then let’s focus on the absolute limit. For a more detailed breakdown, please see my keto shopping list article.
For the ketone esters, on the other hand, repeated doses of 20-30 grams in any one day may be possible. Thus these products may be able to maintain a modest level of ketonemia without dietary carbohydrate restriction. Thus some of the cardiac and brain fueling benefits may follow, not to mention the epigenetic effects limiting oxidative stress and inflammation. But given the recent observation that administered ketone esters markedly reduce circulating free fatty acids (Myette-Cote 2018) — possibly due to an insulin-tropic effect or direct suppression of lipolysis (Taggart 2005) — their sustained use in people with underlying insulin resistance may compromise their long-term benefits by promoting weight gain unless combined with carbohydrate restriction.
In Summary, I think it’s important to do your own research and draw your own conclusion about the long term risks of ketosis. For some people, a ketogenic diet may be a necessity given their health situation. For those of us who do not suffer from such health conditions I would present the question ‘why do you want to follow a strict ketogenic diet for an extended period’, and then follow this up with ‘are the potential risks and sacrifices worth the benefits?’

The best time to start a one day fast is in the evening (neither morning nor the night) – preferably, around 6 pm. It won’t make you lose your vital energy during the daytime workouts, nor does it let you sleep with undigested foodstuff in your stomach. Taking late meals and sleeping with undigested food doesn’t allow your body to rest. So the natural healing mechanism of your body fails during the sleep time as the entire resources are busy digesting your food.
If the claims about the benefits of exogenous ketones are accurate and true, then it’s fantastic news for people who are looking to enhance their keto lifestyle and who have the money to spend. But two of our core values are trustworthiness and goodness, and it is important to us to test assumptions made by marketing claims and help make sure that people are getting what they are told they are getting when they spend money on a product.
Best exogenous ketone I've tried (bhb). I've been eating a keto diet since Feb 2017 and notice athletic/ mental improvements with all the products I've tried but this has the best flavor by far . Bhb ranges from jet fuel (nutricost 4-1) to a citrus lemonade and this is the later. This is my goto for sure! Ketocana worked well and tastes ok but I prefer the taste of keto bhb
If you’re wondering how to get into ketosis in 24 hours, and whether it’s even possible with such a short turnaround time, then combining a keto diet with intermittent fasting is a must. I am a massive advocate of not only the ketogenic diet but also the practice of daily fasting – I swear by it! It’s not for everyone as it does require a lot of discipline to pull off. But if you can commit to it, the benefits in my opinion are well worth it. So you may be wondering what intermittent fasting is? Well, it’s the practice of performing a daily fast from food and (caloric) drinks for at least 16 hours of the day.
The effects of the two exogenous ketone drinks on acid-base balance and blood pH were disparate. In solution the ketone salt fully dissociates (giving a total of 3.2–6.4 g of inorganic cation per drink), allowing βHB− to act as a conjugate base, mildly raising blood and urine pH, as seen during salt IV infusions (Balasse and Ooms, 1968; Balasse, 1979). Urinary pH increased with the salts as the kidneys excreted the excess cations. In contrast, KE hydrolysis in the gut provides βHB− with butanediol, which subsequently underwent hepatic metabolism to form the complete keto-acid, thus briefly lowering blood pH to 7.31. Electrolyte shifts were similar for both KE and KS drinks and may have occurred due to βHB− metabolism, causing cellular potassium influx and sodium efflux (Palmer, 2015).
Ketosis is a natural process that more and more people are flocking to these days in an effort to stay fit and healthy. Studies show that it has a host of health benefits and plays a key role in maintaining or changing your physical appearance by helping you lose weight. This is due to the fact that when the body is in a state of ketosis, it converts fat into compounds known as ketones, effectively turning fat into a source of energy.
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Hi Acadia, just want to clear up a few things you noted in your post: The manufacture of BHB salts involves ionic bonding of an anion (beta-hydroxybutyrate) with a cation (Na+, K+, Ca+, Mg+). At least one of the exogenous ketone products you listed does in fact contain potassium ions. People taking potassium-sparing drugs need to know this and that raises concerns about leaving it off your chart. Some people are genuinely sodium sensitive even to small amounts of salt added to otherwise healthy foods. This can hold true even for those following ketogenic diets. The term you’re looking for… Read more »
Glucose and BHB went down slightly throughout the effort and RQ fell, implying a high rate of fat oxidation. We can calculate fat oxidation from these data. Energy expenditure (EE), in kcal/min, can be derived from the VO2 and VCO2 data and the Weir equation. For this effort, EE was 14.66 kcal/min; RQ gives us a good representation of how much of the energy used during the exercise bout was derived from FFA vs. glucose—in this case about 87% FFA and 13% glucose. So fat oxidation was approximately 12.7 kcal/min or 1.41 g/min. It’s worth pointing out that “traditional” sports physiology preaches that fat oxidation peaks in a well-trained athlete at about 1 g/min. Clearly this is context limited (i.e., only true, if true at all, in athletes on high carb diets with high RQ). I’ve done several tests on myself to see how high I could push fat oxidation rate. So far my max is about 1.6 g/min. This suggests to me that very elite athletes (which I am not) who are highly fat adapted could approach 2 g/min of fat oxidation. Jeff Volek has done testing on elites and by personal communication he has recorded levels at 1.81 g/min. A very close friend of mine is contemplating a run at the 24 hour world record (cycling). I think it’s likely we’ll be able to get him to 2 g/min of fat oxidation on the correct diet.

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