If fast weight loss while consuming nearly unlimited amounts of fat sounds too good to be true, “think again,” keto diet devotees say. Followers of the trendy high-fat, low-carb meal plan swear it clears the brain while lowering the number on the scale.
Although long-term health effects of the diet, which requires roughly 80% of your daily calories to come from fat, are still unknown for the average person, the Keto diet has long been used to treat children with epilepsy and people with diabetes.
But the biggest question of all is how does eating keto diet foods cause you to lose weight when you’re eating bacon, butter, and cheese? Keep reading for the details, plus learn which foods you can (and can’t!) eat on this diet.
Carbs (5-10% of calories)
Approximate grams of carbs per day based on a 2,000-calorie diet: 40
“Drastically limiting your intake of glucose, the usual energy source for your cells, reduces insulin secretions in your body. Since low levels of glucose are coming in, the body uses what is stored in the liver and then the muscles,” says Rania Batayneh, MPH, the author of The One One One Diet: The Simple 1:1:1 Formula for Fast and Sustained Weight Loss. After about three or four days, all of the stored glucose is used up.
“For an alternative source of energy, your liver will start to convert fat into ketones, which will then be released into the bloodstream and be used by your cells for energy. Basically, your brain and muscles will be fueled by fat instead of carbohydrates,” says Michelle Hyman, MS, RD, CDN a registered dietitian at Simple Solutions Weight Loss.