Thomas Keller - KETO DIET COOKBOOK 2019: The Complete Guide to Lose Weight Fast, Save Time and Live happier

When it comes to commonly held beliefs, most people have been told that eating too much fat is what makes us sick. Whilst it is true that eating too mam calories in a day is bound to lead to weight gain, cutting out fat is also not the answer.

Fat came under fire because it is very calorie dense. It seems to make sense - cut out the more nutrient dense food in order to drop the number of calories that you consume.

However, if you consider that we evolved as hunter-gatherers who might have had to go without food for a day at a time or more, the picture becomes more complicated.

Our bodies are not built for having such ready access to food in general and carbs in particular. Our ancestors had to go out and hunt for their food. Today though, we just stop in at the store.

Pair that with our increasingly sedentary lifestyles and it is hardly surprising that we are becoming more obese and that dieting is such a huge trend.

But, despite the fact that the typical low-fat diet has been punted as the best option for the last few decades, we are getting more obese. Despite us cutting out so much fat, we are increasingly unable to lose the weight.

But look for a minute at what it is that we do eat. We take the fat out of food and it no longer tastes so good so we add in tons of sugar. The typical Western diet consists of a high level of processed foods that are high in sugar.

However, these highly processed carbs have very little nutrient value and, because they are so processed, they have a massive impact on our blood sugar levels.

We eat the carbs and our blood sugar levels skyrocket. The body responds by increasing the production of insulin. The sugar is mopped up and your energy levels plummet again. You then crave even more carbs to fuel your body.

You quickly get caught in a vicious cycle you need the carbs for energy but they cause your blood sugar levels to crash fairly quickly. And, after the crash, your body requires more energy and so you have to eat again.

If this happens over and over again, your body becomes less responsive to the insulin produced by it. You end up needing more insulin to clear out the excess blood sugar. More insulin is produced but it is less effective than before.

More of the glucose that is produced is left over in the blood stream and is converted to fat that gets stored in the body.

The way to get out of this cycle, is to fuel your body in a completely different way. That is where a ketogenic diet comes in to play.

Ketosis can reverse this by forcing your body to use the fat stores for energy.

The ketogenic diet turns our commonly held belief about weight-loss on its head. Instead of cutting out as much fat as possible, you eat a diet that is high in protein and that has moderate amounts of fat and that restricts carbs as much as possible.

With the lack of glucose as a fuel source in the diet, the body has no choice but to start burning through the fat stored in it. Your body actually changes its preferred fuel source over to fat -and that is why you need to increase the amount of fat that you eat.

The benefits of a ketogenic diet is that you will not feel hungry or deprived in any way and you will be able to lose weight easily. Once the initial adjustment period is over, you will find that you have a lot more energy and a greater ability to focus.

We are not going to go into the actual diet in full in this book but we do provide you with recipes that are all keto-friendlv.