For all those nutrition nerds out there, this was my strategy for the Seawall 100. In general my diet is pretty good. I avoid sugar, wheat, large amounts of high meg6 rich vegetable oil. I stick to identifiable real foods and avoid processed / junk foods.
10 days before I bumped up the fat intake to get the body used to keto burning efficiently. 2 days before, I added more quality carbs (such as beer - beer is a quality carb right?) to top up the glycogen tanks. So the hope was that I would be good at burning both body fat and glucose....