Glucose Ketone Index (gki) – What Ratio Do I Need For Nutritional Ketosis Benefits?
Generally these blog posts are a result of scratching my own itch (answering my own question), and this post is no different. At the time of writing this, I’m doing a 5-day fast, and wanted to understand the readings I’m getting for my blood glucose and blood ketone levels. Initially I thought that blood ketones were all that mattered, and certainly a lot of people only talk about that reading. But looking at Dr Thomas Seyfried’s paper on treating brain cancer (glioblastomas). It suggests that its important to take into account blood glucose also. In their study, they acheieved optimal results when their patients maintained what they called ‘nutritional ketosis’. And as part of the paper, they included a formula for what this means. The chart below describes visually what they mean by nutritional ketosis, and how it affected the tumour growth. The red is an increase in ketones as a fictional patient goes deeper into ketosis. The black line represents blood glucose, that decreases to a plateau, as carbohydrate sources are removed from the diet, and glycogen stores decrease. So that sweet spot they reach at the end is an optimum level of nutritional ketosis. Now… obviousl Continue reading >>