Banting Diet and Athletic Performance
Key ideas here are from "The Art and Science of Low Carbohydrate Performance."
If it isn't broke, don't fix it.
If as an athlete you are happy with your performance, and your recovery rate; if your weight is under control and you have enthusiasm for training, don't do anything.
If you are an elite athlete, coach, trainer, physician or nutritional scientist, LCHF diets will interest you.
If you are a casual athlete with weight control problems LCHF diets will interest you.
If you are a gym veteran who's in a rut, LCHF diets will interest you.
Compared with the general population, athletes tend not to be very carbohydrate intolerant.
Most athletes depend on a full tank of glycogen, to fuel their training and performance. (Max 2000kcal.)
That limits both how you train and for how long you can perform at high intensity.