The diet can lead to what is commonly referred to as the "keto flu," characterized by symptoms like headache, fatigue, nausea, dizziness, and irritability. These symptoms are usually temporary but can be distressing. Long-term adherence to the diet may result in nutrient deficiencies since many fruits, vegetables, and grains are restricted. There's also the risk of developing kidney stones, liver disease, and increased levels of cholesterol and lipids in the blood.
