Good video… Prof. Jeff Volek gives an excellent lecture explaining metabolic benefits of low-carbohydrate high-fat (LCHF) ketogenic diets. He brings up some of the intricate details of the science of ketosis, but he makes it relevant with information about the health effects to individuals and the worldwide consequences of failed dietary protocol. He gives some statistics that show horrendous effects and predictions regarding the metabolic syndrome epidemic. Some of the promising science showing therapeutic use of ketogenic diets is also discussed.
Low carbohydrate diets are shown to improve a wide range of biomarkers. Although it is an inconsistent effect, carb restriction causes 15 to 20 percent of people to have increased LDL cholesterol. However, the size of LDL particles is probably more important than the concentration. Also, particle size consistently increases with carb restriction.
Volek points out the fact that there is no association between dietary saturated fat (SFA) and heart disease, while saturated fat in blood does correlate with incidence of heart disease. Although a low carb diet is typically higher in SFA, dietary saturated fat decreases SFA in the blood.
One of the points is that people’s tolerance to carbohydrates is widely variable. His summary:
Consumption of carbohydrates at levels that exceed an individual’s ability to directly oxidize them contributes to increased circulating SFA… …and exacerbates the features of insulin resistance.
Regarding carbohydrate levels, Volek notes that, eating a “heart-healthy” muffin and a banana for breakfast causes you to take on ten times the amount of glucose that is normally in your bloodstream.