Early studies reported high success rates: in one study in 1925, 60% of patients became seizure-free, and another 35% of patients had a 50% reduction in seizure frequency. These studies generally examined a cohort of patients recently treated by the physician (what is known as a retrospective study) and selected patients who had successfully maintained the dietary restrictions. However, these studies are difficult to compare to modern trials. One reason is that these older trials suffered from selection bias, as they excluded patients who were unable to start or maintain the diet and thereby selected from patients who would generate better results. In an attempt to control for this bias, modern study design prefers a prospective cohort (the patients in the study are chosen before therapy begins) in which the results are presented for all patients regardless of whether they started or completed the treatment (known as intent-to-treat analysis).[18]
Probably, and there are a few reasons why, Keatley says. For starters, people usually reduce their daily caloric intake to about 1,500 calories a day because healthy fats and lean proteins make you feel fuller sooner—and for a longer period of time. And then there’s the fact that it takes more energy to process and burn fat and protein than carbs, so you're burning slightly more calories than you did before. Over time, this can lead to weight loss.
Tracy, We haven’t tried this recipe with another cooking method, but it should actually be pretty easy! The objective is to cook the chicken (any way you like, poached, baked, grilled, or even rotisserie) until it can be shredded, and then mix the shredded chicken with the creamy sauce. To cook the creamy sauce on the stovetop, we recommend crisping the bacon in a saucepan and then removing it and adding the water and spices. Once the water is simmering, add the cream cheese a bit at a time (slightly softened would probably work best), whisking until it’s incorporated. Cooked this way, you may need to add a splash more liquid (water or broth, if you prefer) to the sauce, because some of the liquid will evaporate off as the cream cheese melts down. Finally, stir in the cooked shredded chicken and shredded cheddar, and serve! If you try it this way, please let us know how it goes!
What's more, it's especially important to make sure your diet is well-planned when you're eating keto-style, because the foods you can choose from are limited. In addition to checking in with a dietitian if you're able, Stefanski recommends that you "talk to your doctor and make sure she or he is aware that you'll be starting a diet that completely changes how your body metabolizes energy." You might also want to check your most recent bloodwork levels for things such as cholesterol, vitamin D, and other indicators of health because these can change while on keto. That's because for some people, a prolonged keto diet can result in certain nutritional deficiencies or even high cholesterol. But most experts will tell you that the ketogenic diet is not a permanent lifestyle change (as could be the case for something like the 80/20 approach to eating or a Mediterranean eating style).
Look at the glycemic index to choose the best foods for your ketogenic meal plan. There are websites that provide the glycemic index (GI) or glycemic load of different foods. The glycemic index tells you how your body's glucose and insulin system will respond to different foods. Foods that are lower on the index (or have a lower glycemic load) are foods that digest more slowly and will help you to feel full for a longer period of time.

We understand that you may not have time to track all your macros, which is why we include the macros with each keto recipe.  However, try grabbing a handful of almonds for a keto snack and realizing even a big handful is over a "serving size" and greater than 200 calories.  If you are using the keto diet for weight loss, this may not fit into your macros of 1200-1500 calories per day.
Those issues can be part of what's known as the “keto flu,” Warren says. Other side effects of the keto diet, all of which are tied to carb withdrawal, can include lightheadedness, nausea, mental fog, cramps, and headaches, in addition to tiredness. Luckily, the keto flu doesn't usually last more than a week—which is coincidentally about when people start to see the number on the scale go down, says Warren.
"My suggestion is to start with changing your mindset first and foremost around three very important facts: this is not just another diet, you don’t have to live in Ketosis forever, and you will not be depriving yourself. Having said that, if you are used to eating highly-processed sugary food and refined carbohydrates you’ll need to ease into it," she explains.

With a ketosis diet, you tend to eliminate more calcium than usual. Additionally, foods such as cruciferous vegetables, spinach, iced tea or chocolate all have a high quantity of oxalates. Oxalates are naturally occurring substances found in a wide variety of foods; they play a supportive role in the metabolism of many plants and animals, including humans. Oxalates combined with calcium can cause kidney stones.
On the ketogenic diet, carbohydrates are restricted and so cannot provide for all the metabolic needs of the body. Instead, fatty acids are used as the major source of fuel. These are used through fatty-acid oxidation in the cell's mitochondria (the energy-producing parts of the cell). Humans can convert some amino acids into glucose by a process called gluconeogenesis, but cannot do this by using fatty acids.[56] Since amino acids are needed to make proteins, which are essential for growth and repair of body tissues, these cannot be used only to produce glucose. This could pose a problem for the brain, since it is normally fuelled solely by glucose, and most fatty acids do not cross the blood–brain barrier. However, the liver can use long-chain fatty acids to synthesise the three ketone bodies β-hydroxybutyrate, acetoacetate and acetone. These ketone bodies enter the brain and partially substitute for blood glucose as a source of energy.[55]
Why higher fat and moderate protein? Fats have little to no effect on blood sugar and insulin levels. Protein does affect both blood sugar and insulin. If you eat too much protein for your ideal body weight or lean muscle mass (usually more than 1.5-2.0 grams/kg lean body mass), it can spark gluconeogenesis and raise blood sugar. Protein will also spike blood insulin levels temporarily, which can interfere with ketone body production. However, it is important to note that this is an individually driven parameter, as detailed in this excellent post from the Optimizing Nutrition blog.  
Yvette, Oh no, sorry to hear about the chicken not being cooked! Was the chicken frozen to start with? If so, be sure to add 5 minutes to your Instant Pot cooking time (on manual high pressure). When we tested this, we literally just put everything into the IP (nestled down into the liquid, of course), and let it do its thing. The cream cheese softened, and when it was done cooking we removed the chicken to shred it, and the sauce stirred together nicely.
Our bodies are incredibly adaptive to what you put into it – when you overload it with fats and take away carbohydrates, it will begin to burn ketones as the primary energy source. Optimal ketone levels offer many health, weight loss, physical and mental performance benefits.1There are scientifically-backed studies that show the advantage of a low-carb, ketogenic diet over a low-fat diet. One meta-analysis of low-carbohydrate diets showed a large advantage in weight loss. The New England Journal of Medicine study resulted in almost double the weight loss in a long-term study on ketone inducing diets.