It’s low in saturated fat. You’re not going to feel hungry eating this way, because you can build in a variety of healthy fats. But by limiting large amounts of red or processed meats and relying heavily on monounsaturated fatty acids, like avocado, nuts, or olive oil, you’ll keep saturated fat levels low. These fats don't lead to high cholesterol the same way saturated fats do. Healthful sources of fat include olive oil, fish oils, and nut-based oils, Cohen explains.
In this phase, you may continue to lose 1-2 pounds per week, or it could slow down. If your weight loss slows down, that’s okay! Remember, as you lose weight, your metabolism will slow down a little as well. Your caloric needs will also lower, which means you’ll have to eat less to maintain your deficit. Stick with it. The CDC suggests that people who lose weight gradually and steadily at a rate of 1 to 2 pounds per week are more successful at keeping that weight off.
More Sustained Energy: 90-120 minutes after you eat carbohydrates, your body doesn’t have readily available energy produced from the mitochondria in your cells, so you start “crashing” or lowering your energy. When you are in ketosis, your body can run off your body fat, which is an essentially limitless source of fuel. This prevents any type of crash.
The ketogenic diet has been shown to produce beneficial metabolic changes in the short-term. Along with weight loss, health parameters associated with carrying excess weight have improved, such as insulin resistance, high blood pressure, and elevated cholesterol and triglycerides. [2,7] There is also growing interest in the use of low-carbohydrate diets, including the ketogenic diet, for type 2 diabetes. Several theories exist as to why the ketogenic diet promotes weight loss, though they have not been consistently shown in research: [2,8,9]
Another Nurses’ Health Study following 10,670 women ages 57-61 observed the effect of dietary patterns on aging.  Healthy aging was defined as living to 70 years or more, and having no chronic diseases (e.g., type 2 diabetes, kidney disease, lung disease, Parkinson’s disease, cancer) or major declines in mental health, cognition, and physical function. The study found that the women who followed a Mediterranean-type eating pattern were 46% more likely to age healthfully. Increased intake of plant foods, whole grains, and fish; moderate alcohol intake; and low intake of red and processed meats were believed to contribute to this finding.
While each person’s keto journey will be unique, the fact remains: going keto is an effective way to shed extra weight and kickstart a life with better health. You’ll look better, feel better, and perform better in everyday life. But as with any diet, there will be times when the weight effortlessly slips off, and other times when the weight stubbornly hangs on. When you hit those weight loss stalls, the best thing to do is stick with it and stay on track. The ketogenic diet works and the health benefits of losing weight could transform your life.
“It makes other food, especially vegetables, taste delicious,” says Palinski-Wade. Raw broccoli? Salad with fat-free dressing? Meh. But broccoli sautéed with garlic and olive oil, salad drizzled with homemade vinaigrette — now we’re talking. “There are so many micronutrients in veggies with potential to help reduce belly fat — but they won’t work if you don’t eat them. I really think that’s a huge reason diets rich in olive oil have been shown to take off more weight,” says the pro. “Olive oil leads to greater vegetable consumption!”
Unsaturated fatty acids, whether monounsaturated or polyunsaturated, can lower your levels of "bad" cholesterol (which decreases your risk of heart disease) if you eat them instead of saturated fatty acids, Hughes says. Saturated fat -- found mostly in animal products and in palm and coconut oils -- is the main dietary cause of high blood cholesterol, according to the American Heart Association.