In patients with coronary artery disease undergoing cardiac rehabilitation, the incidence of major adverse cardiovascular and cerebrovascular events over a mean follow-up of 470 days is the same across those following low-carbohydrate, low-fat, or standard diets.

The body maintains consistent levels of blood sugar, fats, and inflammation regardless of whether a person eats fewer carbs, fewer fats, or a standard diet. This stability keeps blood vessels healthy, prevents clot formation, and avoids stress on the heart and brain, so serious events like heart attacks and strokes happen at the same rate.