What is the keto diet?

The ketogenic diet (keto) is a high-fat, moderate-protein, and very low-carbohydrate eating plan.

The goal of the diet is to shift your body’s metabolism away from burning glucose (sugar) and toward burning fat and ketones for energy. This metabolic state is called ketosis.

Here are the basics of how it works:

• Drastic Reduction in Carbs: You typically limit carbohydrate intake to 20–50 grams per day. This forces your body to deplete its stores of sugar and look for an alternative fuel source.
• Increased Fat: Because you aren't eating carbs, fat becomes your primary energy source. You consume healthy fats like avocados, nuts, seeds, olive oil, and butter, along with proteins like fish, meat, and eggs.
• The Ketone Shift: Once your body runs out of glucose, the liver begins breaking down stored fat into molecules called ketones, which are used as fuel for the body and brain.

People often use the keto diet for weight loss, and some therapeutic versions (monitored by medical professionals) are used to manage conditions like epilepsy.

Because this diet is highly restrictive, it is best to consult with a healthcare professional or a registered dietitian before starting. It is not suitable for everyone, particularly those with certain metabolic or kidney conditions.