The ketogenic, or "keto," diet — which first became popular in the 1920s as a treatment for epilepsy and diabetes— limits carbohydrates to no more than 50 grams a day, which is the rough equivalent of a plain bagel or a cup of white rice. By comparison, dietary guidelines from the US Department of Agriculture recommend from 225 to 325 grams of carbs a day.
High-fat, low-carb diets can help diminish hunger and also boost weight loss through their hormonal effects. As described above, when we eat very little foods that supply us with carbohydrates, we release less insulin. With lower insulin levels, the body doesn’t store extra energy in the form of fat for later use, and instead is able to reach into existing fat stores for energy.
Remember the low-fat diet craze? Back in the 1990s, we were told that swapping regular cookies and chips for those labeled "low fat" would be the ticket to easy weight loss and better health. Today, it's the opposite—a low-carb, high-fat eating plan called the ketogenic diet, or keto diet for short, is getting all the buzz. Celebrities like Halle Berry, Kim Kardashian, and Megan Fox are fans; more than 7 million Instagram posts have been tagged #keto; and upwards of 1 million people search "keto diet" on Google every month.
Certain studies suggest that ketogenic diets may “starve” cancer cells. A highly processed, pro-inflammatory, low-nutrient diet can feed cancer cells causing them to proliferate. What’s the connection between a high-sugar diet and cancer? The regular cells found in our bodies are able to use fat for energy, but it’s believed that cancer cells cannot metabolically shift to use fat rather than glucose. (11)
This means that if you have risk factors for heart disease — such as elevated cholesterol levels, high blood pressure (hypertension), or a strong family history of the disease — you should use caution when following this diet. The diet's heavy reliance on fat, especially saturated fat, can elevate cholesterol levels, further increasing your chances of developing heart disease in the future. (7)
Unfortunately, long-term fasting is not a feasible option for more than a few days, therefore the ketogenic diet was developed to mimic the same beneficial effects of fasting. Essentially the keto diet works by “tricking” the body into thinking it is fasting, through a strict elimination of glucose that is found in carbohydrate foods. Today the standard ketogenic diet goes by several different names, including the “no-carb diet” or “very low carbohydrate ketogenic diet”(LCKD or VLCKD for short).
The hallmark of a ketogenic diet is being in ketosis for extended periods of time, and is achieved by carbohydrate restriction. While there isn’t a strict prohibition of artificial sweeteners, grains, and manufactured foods, there is a strong preference in the community to lean towards natural, whole foods. Keto is for overall health, and weight loss is a welcome side effect for many people.
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After increasing water intake and replacing electrolytes, it should relieve most all symptoms of Keto Flu. For an average person that is starting a ketogenic diet, eating 20-30g of net carbs a day, the entire adaptation process will take about 4-5 days. My advice is to cut your carbs to fewer than 15g to ensure that you are well on your way into ketosis within one week. If you are experiencing any more keto flu symptoms, double check your electrolyte intake and adjust.
I find myself in the kitchen a lot more, but that's a good thing, especially since I'm gaining more energy and endurance from the diet. Since I live alone I've also invested in more plastic bags and containers. When I use one of the recipes I divide the finished product into the number of servings, eat one and bag the rest for the freezer or fridge.
I’ve always heard that the brain functions well on ketones. Gluconeogenisis typically reduces ketosis, though as well? This is the first time I’ve heard anyone say the brain can’t use anything but glucose. I know there’s *preferred* sources of fuel over others, but I was also fairly certain other sources were fine.. or humans might be in a bit of trouble.
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