The ketogenic diet, popularized in the early 2000s for its emphasis on high-fat, low-carbohydrate consumption, has come under scrutiny in recent years. A study published in the March 2024 issue of Current Problems in Cardiology challenges the diet’s effectiveness and raises concerns about its long-term health implications. The study, led by Joanna Popiolek-Kalisz, MD and PhD, highlights issues such as unreliable weight loss, potential heart health risks, and nutrient deficiencies associated with the keto diet. These findings, coupled with a recent decline in the diet’s popularity among Americans, suggest a growing skepticism towards its purported benefits.