In a very basic nutshell, the ketogenic diet focuses on reducing carbohydrates while increasing your fat intake and including adequate amounts of healthy proteins.

This forces your body to burn fat for energy which is known as ketosis. The diet has many health benefits including reduced inflammation, improved brain health, enhanced energy, increased longevity, weight loss, better overall health and a potentially reduced risk of chronic diseases such as type 2 diabetes and heart disease.

Eating the right kinds of fat on a ketogenic diet is essential if you want to stay healthy. So, avoid processed fats and focus on healthy fat sources such as oily fish, nuts and seeds, avocado, olives, eggs and grass-fed (preferably organic) red meat and poultry.

Using the right cooking oils and fats is vital too, and you want to avoid processed and heated oils that may have been made from GMO ingredients, sticking to organic, raw, cold pressed ones instead.

It's important to remember that even healthy oils can become carcinogenic when they are overheated, so it's good to be aware of how to use them.

Here are five healthy cooking oils and fats to use on a keto diet.