The goal of the keto diet is to enter and then stay in a metabolic state called ketosis, in which you burn fat for energy, rather than carbohydrates.
The custom keto diet system is not much expensive.
This often turns into a vicious cycle where the rapid rise in our blood sugar levels then leads to a rapid fall in our blood sugar, which then lowers our energy levels and makes it hard to focus.
A ketogenic diet may have a negative impact on performance especially with high intensity activity.