So I’ve been primarily on a Keto diet for almost 6 months. During this time, I have fine tuned a lot to get my ketone levels up (Eating more fat and less protein). Most recently, I have used blood measurements for my ketone levels and I fluctuate between .6 and 2.6. The higher readings I get on the days I workout in the morning (about 5 hours before I draw blood and take a reading). I don’t have any problems sticking to the diet. It only seems to get easier. I’ve also incorporated 16 hour fasts which also are becoming easier over time. My priority and motivation for doing a keto diet is first and foremost weight loss. So far I have lost 40 pounds and I need to lose about 20 more. I do however want to improve my performance (running) and strength (I am doing the Stronglifts 5×5 program now).
Because of how effectively exogenous ketones can reduce hunger for those in ketosis, pay attention to the cues your body gives you. It’s possible to extend your fasts longer than necessary because of a decreased appetite cue. While those who have some weight to lose might be tempted to think this is a favorable side effect, there is a difference between fasting and starving for nutrients. Make sure to get enough food to support your activities and maintain your muscle mass.
I also concluded that post by discussing the possibility of testing this (theoretical) idea in a real person, with the help of exogenous (i.e., synthetic) ketones. I have seen this effect in (unpublished) data in world class athletes not on a ketogenic diet who have supplemented with exogenous ketones (more on that, below). Case after case showed a small, but significant increase in sub-threshold performance (as an example, efforts longer than about 4 minutes all-out).
On day 29, rats were sacrificed via deep isoflurane anesthesia, exsanguination by cardiac puncture, and decapitation 4–8 h after intragastric gavage, which correlated to the time range where the most significantly elevated blood βHB levels were observed. Brain, lungs, liver, kidneys, spleen and heart were harvested, weighed (AWS-1000 1 kg portable digital scale (AWS, Charleston, SC)), and flash-frozen in liquid nitrogen or preserved in 4 % paraformaldehyde for future analysis.
To answer that question, we're going to break down the methods that can get you the results you want in the least possible time. We're going to let you in on a couple of tips and tricks that you will need to know before trying out the diet yourself. We guarantee you that these tips will help you achieve success in your chosen diet quickly and easily.
There is one viable explanation for consuming ketones. If you're in a calorie or carb-restricted state, then maybe during a workout it would make sense. But even then, that really only applies to endurance activities, since it has more to do with enhancing aerobic performance (where oxygen is required), than it does with enhancing high-intensity efforts (where it's not).
Dusty you assume only everyone wants fat burning. I think this is silly. The brain and heart will prefer ketones over carbohydrates when both are present in the blood stream. Look at the research and mechanism. I don’t want fat loss, I want better brain function. I also regularly eat carbs myself. This is one of the reasons I myself use exogenous ketones. No this isn’t a magic fat loss powder, but don’t sit here and quote T-nation trying to rebuttal this article acting like that is a credible source.
Before that though, I do want to touch on MCT oil and it’s impact on ketone levels. MCT – or Medium Chain Triglyceride – are fatty acids that bypass the liver – and become quick energy for the brain and muscles. As they are a fat based energy source (and not a carbohydrate) they are quickly converted into ketones. This means MCT oil is a great way to boost ketone levels in the body.
However, it's important to NEVER overlook the power of exercise and of course sticking to a proper routine to get the most optimized results. The most common mistake people make is by treating any keto supplement like a "wonder drug" that will help them shed weight in their sleep. Seriously... how is that even scientifically possible. So if you are thinking about trying out a particular keto supplement, I would suggest two things:
Participants consumed 13.2 mmol.kg−1 of βHB (6.6 mmol.kg−1 or 1,161 mg/kg of KE) over 9 h, either as 3 drinks of 4.4 mmol.kg−1 of βHB at 3 h intervals (n = 12), or as an initial bolus of 4.4 mmol.kg−1 of βHB given through a nasogastric tube, followed by an infusion of 1.1 mmol.kg.h−1, beginning 60 min after the initial bolus, for 8 h (n = 4). Two participants completed both conditions (total n = 14). In both conditions, the KE was diluted to 1.5 L using the same citrus water as used in Study 2.
At baseline, 4 h after intragastric gavage, the elevation of blood ketones was inversely related to the reduction of blood glucose compared to controls following the administration of MCT (5 g/kg) (p = 0.008) and BMS + MCT (5 g/kg) (p = 0.039) . There was no significant correlation between blood ketone levels and blood glucose levels compared to controls for any other ketone supplemented group at baseline (Fig. 4a). At week 4, 4 h after intragastric gavage, there was a significant correlation between blood ketone levels and blood glucose levels compared to controls in MCT (10 g/kg) and BMS + MCT (10 g/kg) (p < 0.0001, p < 0.0001) (Fig. 4b).
Our mission at Ketologie is to help educate and assist people in transitioning to a ketogenic way of eating for life. Primarily, we support people achieving this via adopting a VLCHF or ketogenic way of eating. Exogenous ketones can however play a useful role in transitioning to and maintaining a ketogenic lifestyle, and so we have exhaustively researched and developed a unique, “next level” ketone supplement that focuses specifically on optimizing health via the gut-brain axis.
Ketone supplements contain exogenous ketones—synthetic ketones made in a lab. Most use a type of ketone called beta-hydroxybutyrate (BHB), which is the same as the ketones the body produces naturally. “We’re literally biohacking," says Amie Heverly, who began taking a ketone supplement called Prüvit last year and now works as a promoter selling Prüvit products. "You’re not adding a foreign substance to your body, because BHB is identical to what your body would naturally produce,” she explains.
I stumbled onto this trend before it even blew up, I have read just about every peer-review journal of the topic, I have trialed as well as tested different methods and keto products (exogenous ketones, MCT oils, pills, etc), and lastly, I have reported and analyzed my performance to share with you all. It hasn't been an easy task, but I have also seen the fruits of the labor, and the fruit is sweet.
MCT oil is extracted primarily from coconut oil, and derives unique benefits from its shorter fatty acid chain length. Most dietary fat contains 12 carbons in the fatty acid chain, while MCTs are only 6 - 12 carbon chains in length. Shorter chain length allows for easier absorption and rapid conversion to energy in the liver, specifically caprylic (C8) and capric (C10).
Recently, two published studies investigated the effects of ketone salts in athletes (total n = 22).8,9 Performance over a four-minute cycling time-trial and a 150 kJ ( ~11 mins) cycling time trial were compared between ketone salts vs. carbohydrate. In the four-minute trial there was no change in performance, and in the 150 kJ test, performance decreased by 7%. Blood BHB levels peaked at 0.6 and 0.8 mM in these studies.
The protocols carried out in these studies were approved by the the South West Frenchay NHS REC (15/SW/0244) (Study 1) and London Queen's Square REC (14/LO/0288) (Study 2 and 3). The studies were carried out in accordance with the recommendations of the Declaration of Helsinki, apart from pre-registration in a database. All subjects gave written informed consent in accordance with the Declaration of Helsinki.
BHB easily crosses the blood-brain barrier resulting in easily accessible energy to the brain and muscle tissues, becoming a source of energy after entering the mitochondria, being converted to Acetyl-CoA, and then ATP through the Krebs cycle (the same process that glucose goes through to become ATP). This ultimately results in many direct benefits, including:
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