This diet is a low carb, high fat diet. It requires that you stick to under 30 grams of carbs per day. Try your best to get those 30 grams from low glycemic vegetables not fruits. There is no real limit on fat intake. Just eat until you're full. If you want to stay in ketosis all day, then you might need to limit your protein however, you shouldn't worry about that too much, unless you need to stay in ketosis all the time for medical reasons. The main thing is to get most of your calories from fat. Over 60% of your calories should come from fat. With this meal plan, you might notice your appetite slowly decreasing, so much so, that fasting for an entire day becomes very easy. This is a huge benefit of keto. On this meal plan, your body's fasting insulin levels will slowly start to drop. After a while, once your body is done metabolizing the food you eat, it will simply switch over to your body fat and burn that fat for fuel. So once you notice your appetite starting to lower naturally, listen to it. If you're not hungry, don't eat. Most people on this plan notice that after a while, they only eat once a day.