Think of it as intermittent fasting 2.0 – only a bit more complicated. Ready? Here goes. There are three windows: one to get you started, one to help you reach your goal weight and a maintenance plan. You eat within a 12-hour, 14-hour or 16-hour window depending on which phase you’re in. But what you eat counts, too. The ‘green light’ lists of foods changes with every phase. Still there?
I bought this book over three years ago and read/followed it fairly religiously . I lost 60 pounds and have not put it back on. Whenever I see the numbers on the scale creep up a bit, I "scale" back. I experienced so much more energy...even after just one week. AND I lost 8 pounds that first week! I'm sure a lot of that was fluid, but what the heck...I'll tank an 8 lb. loss. This has been a God-send and was so easy that I kicked myself for not doing it sooner. BTW, I'm not a kid...I was 56 year-old, still-experiencing-menopausal-symptoms-woman when I started. As I tell everyone, it's not a diet, it's a lifestyle!
When your body burns its stores of fat, it can be hard on your kidneys. And starting a ketogenic diet -- or going back to a normal diet afterward -- can be tricky if you’re obese because of other health issues you’re likely to have, like diabetes, a heart condition, or high blood pressure. If you have any of these conditions, make diet changes slowly and only with the guidance of your doctor.
You’re very welcome, Judy! I’m glad it’s helpful. If you are keto (as opposed to low carb), unfortunately peaches would not allow you to stay in ketosis. You can check my keto food list to help determine what is keto friendly. Of course, there are worse things than fresh fruit 🙂 but in the end our bodies still see the sugar. That being said, it doesn’t mean you sabotaged the whole day. Just pick up again – you got this!! (And for next time, try some fresh berries in moderation when you’re craving fruit.)

The ketogenic diet has been studied in at least 14 rodent animal models of seizures. It is protective in many of these models and has a different protection profile than any known anticonvulsant. Conversely, fenofibrate, not used clinically as an antiepileptic, exhibits experimental anticonvulsant properties in adult rats comparable to the ketogenic diet.[57] This, together with studies showing its efficacy in patients who have failed to achieve seizure control on half a dozen drugs, suggests a unique mechanism of action.[55]
Shortly after World War II, Ancel Keys and colleagues (including Paul Dudley White, later President Eisenhower’s heart doctor) organized the remarkable Seven Countries Study to examine the hypothesis that Mediterranean-eating patterns contributed directly to improved health outcomes. This long-running study examined the health of almost thirteen thousand middle-aged men in the United States, Japan, Italy, Greece, the Netherlands, Finland, and then-Yugoslavia.
The main advantage of the low-carb diet is that it causes you to want to eat less. Even without counting calories most overweight people eat far fewer calories on low carb. Sugar and starch may increase your hunger, while avoiding them may decrease your appetite to an adequate level. If your body wants to have an appropriate number of calories you don’t need to bother counting them. Thus: Calories count, but you don’t need to count them.
You say keto is a highly controversial topic. For those of us following a keto diet, there is no controversy whatsoever because the diet proves itself efficacious very quickly. I think the real controversy comes in because the ADA has been recommending dangerous levels of carbs for decades now, and they would lose face if they had to change their recommendation and admit they’ve been wrong for so long. You say there are not many studies on the keto diet, and I disagree with you. You’ll find the evidence if you look for it. Eric Westman, Steve Phinney, Jeff Volek and many other researchers have written volumes about this.
The comments defending the keto diet suggest that the individuals are successfully using the keto diet to help them maintain a healthy weight and a healthier A1C level. The individuals also suggest that they view it as a way of life rather than a diet. This is good news for many of us who are facing the question of whether it will be helpful and necessary to reduce carbohydrate intake to keto producing levels in order to halt or reverse the onset of type II diabetes. I think like those individuals, Tami is speaking from her own personal experience where she had success losing weight, but had difficulty maintaining the keto diet long-term. I am sure that though you have been successful, you can understand that there are many who might find it difficult to maintain. I too have been given very bad guidance by Medical Doctors who lean on old Med School information to practice medicine rather than continuing to broaden their knowledge base and learn more about nutrition. I cannot get back the 20+ years of suffering with a debilitating disease that could have been cured because my doctors were not well informed or willing to listen to information that disagreed with their limited knowledge base. Those years are gone and the destruction to my body is not reversible. So I understand the anger you feel toward a system that isn’t working in the best interest of the patient. But I think that expressing anger toward those who disagree with our personal experience, is not solving the problem. Hopefully we can change the ADA guidelines by respectfully urging them to reconsider their position based on the sheer volume of the comments they receive from successful people like you, who are living the keto diet lifestyle and living better. I commend you for becoming your own best health advocates. Thanks for your encouragement and your passion. And thanks to Tami as well for sharing her personal experience and the information she had collected. We all have to be true to what we believe and we all have a right to come to our own conclusions. It is good to know that there are success stories out there. I wish you all good health and continued success. I also hope that one day medical training will do a much better job of preparing doctors to become their patient’s best advocates, actively learning and searching for cures rather than treating symptoms in ways that cause even more disease to develop. The system is failing so many of us.
Selecting the right food will be easier as you become accustomed to the Keto approach. Instead of lean meats, you’ll focus on skin-on poultry, fattier parts like chicken thighs, rib-eye steaks, grass-fed ground beef, fattier fish like salmon, beef brisket or pork shoulder, and bacon. Leafy greens such as spinach, kale and lettuce, along with broccoli, cauliflower and cucumbers, make healthy vegetable choices (but you’ll avoid starchy root foods like carrots, potatoes, turnips and parsnips). You can work in less-familiar veggies such as kohlrabi or daikon.

Check the nutrition labels on all your products to see if they’re high in carbs. There are hidden carbs in the unlikeliest of places (like ketchup and canned soups). Try to avoid buying products with dozens of incomprehensible ingredients. Less is usually healthier.Always check the serving sizes against the carb counts. Manufacturers can sometimes recommend inconceivably small serving sizes to seemingly reduce calorie and carb numbers.


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.
There are three instances where there’s research to back up a ketogenic diet, including to help control type 2 diabetes, as part of epilepsy treatment, or for weight loss, says Mattinson. “In terms of diabetes, there is some promising research showing that the ketogenic diet may improve glycemic control. It may cause a reduction in A1C — a key test for diabetes that measures a person’s average blood sugar control over two to three months — something that may help you reduce medication use,” she says.
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