Keto is a no-carb diet - Deepstash

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The keto moment

Keto is a no-carb diet

Carbohydrates account for about half the calories on average in the American diet. Rice, maize, and wheat provide 60 percent of the world's food energy intake, even though there are more than 50,000 edible plants.

Keto is practically no-carb, forbidding processed junk foods and severely limits grains, including whole grains, fruits, and legumes such as brown rice, apples, and lentils. Keto adherents think conventional nutritional wisdom is harmful.

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Documented uses of the keto diet

Doctors have been prescribing ketogenic diets to treat epilepsy for nearly a century, and increasingly believe it holds promise for people with Type 2 diabetes.

But the older keto regimens didn’t work for most people hoping to slim down, and there’s no evidence the newly popular keto diet will be any different. 

The Ketogenesis process

It supplies energy under circumstances such as fasting or caloric restriction to certain organs (e.g. the brain, heart, and skeletal muscle).

In ketogenesis, our livers start to break down fat into a usable energy source called ketones. Ketones can stand in for glucose as fuel for the body when there’s a glucose shortage. 

Once ketogenesis kicks in and ketone levels are elevated, the body is in a state called “ketosis,” during which it’s burning stored fat. 

The Keto diet
It is a very low-carb, high-fat diet. People on a ketogenic diet get 5 percent of their calories from carbohydrates, about 15 percent from protein, and 80 percent from fat. It’s this ratio that will force the body to derive much of its energy from ketones. 

That means eating mainly meats, eggs, cheese, fish, nuts, butter, oils, and vegetables while avoiding sugar, bread and other grains, beans, and even fruit.

Ketosis

... is a normal metabolic process. When the body does not have enough glucose (derived from sugars and starches) for energy, it burns stored fats instead; this results in a build-up of acids called ketones within the body.

Fast facts on ketosis
  • Ketosis occurs when the body does not have sufficient access to its primary fuel source, glucose.
  • Ketosis describes a condition where fat stores are broken down to produce energy, which also produces ketones, a type of acid.
  • In small amounts, ketones serve to indicate that the body is breaking down fat, but high levels of ketones can poison the body, leading to a process called ketoacidosis, a serious condition that can prove fatal.
  • People with type 1 diabetes are more likely to develop ketoacidosis, for which emergency medical treatment is required to avoid or treat diabetic coma.
  • Some people follow a ketogenic (low-carb) diet to try to lose weight by forcing the body to burn fat stores.
The ketogenic diet
The diet itself can be regarded as a high-fat diet, with around 75 % of calories derived from fats,  20 % from proteins and 5 % from carbohydrates.

Adhering to the ketogenic diet can lead to short-term weight loss, consuming fewer calories without feeling hungry while following the diet.

Ketosis

Is a metabolic state. Think of being in or out of ketosis like the settings in a hybrid car; you can rely on gas or electricity to different degrees.

In ketosis, we rely on fat instead of carbs for energy and do so to such an extent that we start making ketones from fat.

The function of ketones

Ketones aren’t just a form of energy, they’re powerful signaling molecules. They regulate the expression of genes and dampen inflammatory processes.
Your body is always producing a very low level of ketones, irrespective of your diet. You start producing more of them when following a diet that’s high in fat and low in carbs.

Getting in ketosis
  • The stricter you restrict carbs (or total calories), the quicker you will be in ketosis.
  • Restricting your carb intake to 20g per day is a good heuristic (loose rule) for entering ketosis. It will generally get you into ketosis within a few days.
  • Fasting gets you into ketosis very quickly.