Highly active individuals may perform more poorly on it, and individuals who are pregnant or have kidney issues should definitely avoid it. Brain deterioration and diseases all have different etiologies, but we may be able to use low-carb, higher-fat diets like the keto diet as a way treat or reduce risks. As demonstrated in patients with epilepsy, ketone bodies can influence neurotransmitter activity and neuron integrity. This is a newer area of research with limited studies, and so far the results are vague but promising. As type 2 diagnosis and pre-diabetes rates continue to skyrocket, it appears that the standard dietary protocol of counting carbs and choosing healthier foods is no longer working.