There are various degrees of ketosis depending on your needs. According to the chart below a Glucose:Ketone Index (GKI) below 3 is “Therapeutic ketosis” that the medical profession uses to treat epilepsy and cancer. A range between 3 and 6 would be “Moderate/functional ketosis” and desirable for obesity, type 2 diabetes and insulin resistance. Lower on the index, between 6 and 9, is “low ketosis” and used for maintenance, optimal health and weight loss. Any thing above 9 there is no ketosis.
The glucose ketone index published study
From Wikipedia we learn that “Ketosis is a metabolic state in which some of the body’s energy supply comes from ketone bodies in the blood, in contrast to a state of glycolysis in which blood glucose provides most of the energy.
Ketosis is a nutritional process characterized by serum concentrations of ketone bodies over 0.5 m/mol, with low and stable levels of insulin and blood glucose. It is almost always generalized with hyperketonemia,
As an athlete I always thought of myself as healthy. I followed what the “experts” suggested was my best diet for an endurance athlete;
- High carbohydrates
- Low Fat
Late last year and in January of this year I took a long hard look at my health because;
- I could not lose the excess body fat I gained and carried over the last three years
- I wasn’t sleeping well
- I wasn’t getting the athletic performance gains that I was promised if I followed a certain workout protocol
It wasn’t until I finally took to heart something I believe in:
If I always do what I’ve always done, I’ll always get what I always got.
I finally had to look to change everything I was doing because clearly it wasn’t working. I didn’t want to go insane believing that if I did the same things I would get a different result.
This is when I discovered KETONES and a LOW-CARB DIET.
What I’d been told about carbohydrates from all the endurance sports coaches and nutrition experts turned out to really suck and now with this information I realize that it helped me underperform for the past umpteen years.
Well perhaps it may have worked in the past. I started racing the Ironman triathlon at age 50. From then to age 58 I maintained a decent race weight. Then in 2015 things changed rapidly for me. I gained weight even though I was doing everything the same. While training fulltime for the Hawaii Ironman World Championship I put in weeks of 20+ hours of training and I could not release 8-10 lbs around my mid section. I was also starting to have more inflammation and my performance decreased as well.
After some soul searching and asking the right questions, I switched to a high-fat low-carb diet and my health and endurance performance as an Ironman triathlete is returning.
Below is an article that says it better than I ever could. I’ll share my take at the end.