A systematic review in 2016 found and analysed seven randomized controlled trials of ketogenic diet in children and young people with epilepsy.[2] The trials were done among children and young people for whom drugs failed to control their seizures, and only one of the trials compared a group assigned to ketogenic diet with a group not assigned to one.[16] The other trials compared types of diets or ways of introducing them to make them more tolerable.[2] Nearly 40% of the children and young people had half or fewer seizures with the diet compared with the group not assigned to the diet. Only about 10% were still on the diet after a few years.[2] Adverse effects such as hunger and loss of energy in that trial were common, with about 30% experiencing constipation.[16]


Ketone esters (BHB-BD) could help to accelerate glycogen resynthesis32. After exercise that depletes muscle glycogen, the muscle uses carbohydrate from the diet to replenish these stores. An experiment was carried out where athletes undertook depletive exercise and then were given a ketone drink (or carbohydrate placebo) as well as glucose intravenously to maintain a high blood level (10mM). In this experiment, when the recovery drink contained ketone ester, more glucose was infused in order to maintain blood glucose at 10 mM, and muscle glycogen levels were 50% higher. However, the evidence is not conclusive: another study. 31 found that adding ketone ester to a protein and carbohydrate recovery drink did not enhance the normal rate of glycogen re-synthesis.  
How It Works On cyclical keto, also called keto cycling, you’ll cycle in and out of keto — usually on the diet for five days, followed by one or two days with more carbs. “The point of keto cycling is to make it easier for someone to follow,” Kizer says. “Every five to six days they can have the carbohydrates they’ve been entirely restricting.” There’s no set protocol of what your carb days should look like, but Kizer warns not to go overboard because that will make it more difficult for the body to return to ketosis.

When you want to add some carbs to a workout, you can follow the targeted ketogenic diet. You’re allowed a few extra carbs, but they are only on the days and around the timings of your workouts. The focus is on still getting the exercise without struggling with energy. You wouldn’t need to do this if you get enough fat into your diet and once your body gets into the ketone producing zone.
I am not a doctor and this is not to be taken, interpreted or construed as medical advice. If you have poor liver or gallbladder function, it can be a good idea to take care of that prior to a high fat diet, yes. But a healthy high fat diet would not cause liver issues per se. These are just my own personal thoughts and not a prescription or a diagnosis or any form of health care whatsoever.
So people saying that – despite the lack of scientific support – likely have a financial reason to say it. Some of these products are sold under something like a multi-level marketing arrangement, so sales people are entirely paid based on commission. For example, the company Prüvit sells drinkable ketones, called KETO//OS with a multi-level marketing structure.

Excellent post. I am of the “everything in moderation” crowd and I have been looking at some of the ketosis ideas and part of me thought… maybe. But after reading this I feel yes, keep with your current course. There’s no reason to get all stressed about eating again! Your attitude will help others find the right path for them and happy is healthy!
A randomized control study in 2017 examined the effects of a ketogenic diet combined with Crossfit training on body composition and performance. Results from this study concluded that subjects following a low-carbohydrate ketogenic diet (LCKD) significantly decreased body weight, body fat percentage and fat mass compared to those in the control group[*].
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