A review of multiple studies in the journal Nutrients found that ketogenic diets are connected to significant reductions in total cholesterol, increases in “good” HDL cholesterol levels, dips in triglycerides levels and decreases in “bad” LDL cholesterol; there are questions as to whether diets high in saturated fat negate these benefits. The same paper reports that a ketogenic may slightly reduce blood pressure, but science is still very scant on this point.
The transition process can be hard, especially when moving away from a diet that is normally carbohydrate heavy. This can sometimes bring on flu-like symptoms for a couple of days – ‘keto flu’ is a thing! Symptoms of the 'keto flu' include brain fog and fatigue, moodiness, migraines, and muscle cramping or tightness, which usually occur as a result of electrolyte changes or dehydration.
The common misconception about the keto diet is that it contains no fibre, and instead the dieter is left eating mountains of bacon rashers, bulletproof coffees, butter and steak. In reality, a well-formulated keto diet will consist of an array of wholefoods including leafy greens, healthy fats from nuts, seeds and coconut, and a small amount of fruit. When keto is done properly, quality fibre is provided in abundance.