Because of the data, the research team stated that “the low-carbohydrate diet was more effective for weight loss and cardiovascular risk factor reduction than the low-fat diet. Restricting carbohydrates may be an option for persons seeking to lose weight and reduce cardiovascular risk factors.” [18] They also noted that “no serious adverse events were reported during the course of the study.” [18] Thus, the ketogenic diet might be a both a safe and effective weight-loss plan for you.
Flynn says the key to the success of the olive oil diet is to cook your vegetables in olive oil. There are two main reasons for this. The first is that carotenoids – the powerful antioxidants that give orange, yellow and red veg their colour and are also found in abundance in leafy greens – need fat to be absorbed. She also believes the nutrients in cruciferous veg such as broccoli and cabbage are better absorbed with oil, but that’s still yet to be conclusively proven.
Now you’ve made the decision to follow the diet, it’s time to choose the type. There are four options. The standard ketogenic diet is the ones that we’ve already looked into, where your diet consists of 70% fat, 25% protein and the rest carbs. You can also follow a high protein option, which cuts your fat intake to 60% and your protein intake up to 35%.

Flynn proved the success of a diet that’s high in healthy fats in 2010 with a study of 44 women over 50 who’d become overweight during breast cancer treatment. Each woman trialled two eight-week diets: Flynn’s olive oil-based diet and a low-fat food plan as recommended by the US National Cancer Institute. Both diets were made up of 1500 calories a day.
When we consider our genetics and the current food environment together, a fascinating story reveals itself. The human species evolved from millions of years of genes that were trying to survive an environment that they didn’t create. As a result, humans evolved the ability to create their own environment that allows them to fulfill their needs at any given moment with minimal effort.
While it’s delicate and not necessarily the best oil for cooking, cold-pressed or expeller-pressed oil hasn’t been refined so it holds all of its natural vitamins, essential fatty acids, antioxidants and other nutrients better. While unrefined oil is separated without high heat, hot water, solvents and left unfiltered, on the flip side some oils are heated to a high degree, which reduces their benefits.
For the sake of science and my book I was trying to emulate the diets of Cretan fishermen from the 1960s, who reportedly had a glass of olive oil for breakfast before a hard day of fishing or goat herding. These high intakes of oil had been suggested as a cause of their remarkable longevity, despite the large amounts of saturated fat they consumed as a result.
Extra virgin olive oil has a subtle golden-green hue with a light peppery flavour. It has a lower smoke point than many other oils, which means it burns easily at a lower temperature. Therefore, it may not be suited for high heat cooking. Dr. Rupali Datta, advises, "It is better to use extra virgin olive oil only for raw or cold cooking. Indian cooking needs are not suited to substitute this oil for our regular vegetable oil. You can use it in salads, as dressings, for making breads and dips. Light sauteing can also be done using extra virgin olive oil."
Flynn says the key to the success of the olive oil diet is to cook your vegetables in olive oil. There are two main reasons for this. The first is that carotenoids – the powerful antioxidants that give orange, yellow and red veg their colour and are also found in abundance in leafy greens – need fat to be absorbed. She also believes the nutrients in cruciferous veg such as broccoli and cabbage are better absorbed with oil, but that’s still yet to be conclusively proven.
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