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Keto diet benefits may include weight loss, improved blood sugar control, increased mental focus, and higher energy levels. However, scientific opinions can be mixed, and long-term effects are not well known.

Intermittent fasting is often paired with the keto diet to enhance ketosis. By cycling between periods of eating and fasting, the body can more easily maintain a state of ketosis.

Ketosis is a metabolic state in which the body uses fat, rather than carbohydrates, as its primary source of energy. This occurs when carbohydrate intake is low enough to force the body to rely on fat metabolism.

Foods to avoid include sugary foods like soda, grains like wheat products, fruit except for small portions of berries, and tubers like potatoes.

Ketosis is typically monitored by testing levels of ketones, which are byproducts of fat metabolism. This can be done using urine strips, a breath analyzer, or blood ketone meters.

Foods to eat on a keto diet include fatty fish like salmon, leafy greens, above-ground vegetables like cauliflower, oils like coconut oil, and high-fat dairy products.

The 'keto flu' refers to flu-like symptoms that can arise during the initial phase of the diet as the body adapts to a low carb intake. Symptoms may include fatigue, headache, and irritability.