A concern of the Keto diet is that it may not be safe for the cardiovascular system since it can drive up cholesterol levels.
Other health professionals believe the high-fat regimen will damage people's kidneys, arteries, and brains. Side effects from "keto flu" include constipation, cardiac arrhythmias, and vitamin and mineral deficiencies.
But, a low-carb diet could be a nutritional treatment option for some patients with diabetes. It also helps people lose weight and get off their medications.