Five ounces of plain Greek yogurt provides just 5 g of carbohydrates and 12 grams of protein. The same amount of cottage cheese also has 5 grams of carbohydrates with 18 grams of protein. Ciniax Garcinia She said keto was best used to kick-start a diet, before transitioning to a carb intake that you can adhere to for the longer term. A recent survey of registered dietitians named the low-carbohydrate keto diet yet again as the most popular diet in the United States. Powering this diet is fat, and loads of it — all the way up to a hefty 90 percent of one’s daily calories.