Fitness expert Daniel Herman told Express.co.uk: “A keto or ketogenic diet is a very low-carb diet (not no carb), which turns the body into a fat-burning machine.
“It has many proven benefits for weight loss, health and performance, as millions of people have experienced already.
“On a ketogenic diet, your entire body switches its fuel supply to run almost entirely on fat.
“Insulin levels become very low, and fat burning increases dramatically. It becomes easy to access your fat stores to burn them off.
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