The ketogenic (“keto”) diet, originally developed in the 1920s as an alternative treatment for pediatric epilepsy, remains a therapeutic strategy for a variety of conditions, including neurodegenerative diseases, diabetes, nonalcoholic fatty liver disease, cancer, and, most notably, weight loss. However, conflicting study results fuel the ongoing debate regarding the role of the ketogenic diet in patients with heart failure (HF). Is the ketogenic diet beneficial in HF in the long term, and how does it affect cardiovascular risk factors? Here’s a look at the current research.