The premise of the ketogenic diet for weight loss is that if you deprive the body of glucose—the main source of energy for all cells in the body, which is obtained by eating carbohydrate foods—an alternative fuel called ketones is produced from stored fat (thus, the term “keto”-genic). The brain demands the most glucose in a steady supply, about 120 grams daily, because it cannot store glucose. During fasting, or when very little carbohydrate is eaten, the body first pulls stored glucose from the liver and temporarily breaks down muscle to release glucose. If this continues for 3-4 days and stored glucose is fully depleted, blood levels of a hormone called insulin decrease, and the body begins to use fat as its primary fuel. The liver produces ketone bodies from fat, which can be used in the absence of glucose. 
Metagenics MCT Oil provides over 90% caprylic (C8) and capric (C10) acid triglycerides. Emerging science suggests that medium-chain triglycerides (MCT) may benefit the body in numerous ways. MCT may help support cognitive health and certain cognitive processes, and pre-clinical research suggests that MCT may benefit mitochondrial function. MCT supplementation temporarily increases levels of ketones, which may serve as an alternative energy source in the brain and in muscle. Supplementing with MCT at multiple meals during the day may aid reductions in body weight and body fat, especially in those with an increased body-mass index (BMI).†† MCT may also help to temporarily increase satiety and reduce food intake, and may temporarily enhance fat oxidation as compared to common long-chain fats.*
Most fundamentally, olive oil, like all oils and fats, are a concentrated source of calories. With over 4,000 calories per pound, olive oil is far more calorie dense than even pure refined sugar, which has 1,725 calories per pound. Because of its extremely high calorie density, adding olive oil to any food or meal will dramatically increase its calorie density.
After investigating 20 controlled feeding studies, Hall and Guo found that both low-carb and high-carb diets had similar effects on body fatness and energy expenditure. The results of this meta-analysis provide us with high-quality evidence that supports the widely-believed theory that calories matter much more than the fat or carbohydrate content of the diet when it comes to weight loss. 
So don’t reward olive oil with the laurels, agreed Dr. Alice Lichtenstein, one of the nation’s top nutrition scientists, at the Human Nutrition Research Center on Aging at Tuft University in Boston. In several interviews about this study of Greek adults, she said, “If the main message that Americans get is to just increase their olive or canola oil consumption, that’s unfortunate because they will increase their caloric intake and they are already getting too many calories.
Caution: Palm oil is a controversial source of MCTs, not because it’s bad for your body, but because there are major issues involved in the process of procuring this oil. These include deforestation, loss of wildlife diversity and unethical treatment of workers. That’s why I only recommend RSPO-certified palm oil, which comes from producers who prioritize sustainability practices.
On a high-fat ketogenic diet, you can easily eat 3,000 calories or more daily with high-calorie foods like cheese and nuts. Sure, your body will shift into ketosis on a high-fat diet, but eating too many calories means your body will utilize dietary fat instead of body fat. A food journal can help you pinpoint high-calorie foods that might sabotage your weight loss. You don't need to be on an old Atkins diet plan to lose weight the keto way.
Eating like a Mediterranean is as much lifestyle as it is diet. Instead of gobbling your meal in front of the TV, slow down and sit down at the table with your family and friends to savor what you’re eating. Not only will you enjoy your company and your food, eating slowly allows you to tune in to your body’s hunger and fullness signals. You’re more apt to eat just until you’re satisfied than until you’re busting-at-the-seams full.
How it’s done: Warm up the LEVL or Ketonix meter by plugging it in. Blow into it and wait for the flashing light indicating it’s reading your acetone levels. The software or the color and speed of the flashing light would tell your reading: green for least acetone, red for most acetone, less flashing for less acetone per color, more flashing for more acetone per color.
It's important to realize that MCT oil will not produce weight loss miracles all on its own. However, it is an excellent addition to an otherwise healthy diet. Moreover, many consider MCTs "the ultimate ketogenic fat," as it allows you to eat slightly more net carbs while still staying in nutritional ketosis. Without MCTs, you'd have to cut carbs more drastically in order to maintain ketosis.
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]
HDL cholesterol has long been considered “good” because it is largely responsible for picking up excess cholesterol from tissues, including the artery wall, and bringing it back to the liver for disposal. This process is known as reverse cholesterol transport. It’s easy to remember if you think of HDL as the garbage trucks that help rid the body of garbage (LDL).
There’s room for interpretation in the Mediterranean diet, whether you prefer to eat lower carb, lower protein or somewhere in between. The diet focuses on consumption of healthy fats while keeping carbohydrates relatively low and improving a person’s intake of high-quality protein foods. If you refer protein over legumes and grains, you have the option to lose weight in a healthy, no-deprivation-kind-of-way with a high amount of seafood and quality dairy products (that simultaneously provide other benefits like omega-3s and often probiotics).
SOURCES: Environmental Nutrition, June 2003; May 2004; February 2005. The Journal of Pediatrics, July 1995. Journal of the American Dietetic Association, February 1997. Journal of the American Dietetic Association, July 1997. Journal of the American Medical Association, 2004; 292. Food Chemistry, May 2004, vol 85; issue 3. American Journal of Clinical Nutrition January 2005. FDA News, Nov. 1, 2004. The Olive Oil Source web site.