Skip to content
Search AI Powered

Latest Stories

Fact-Checked

Our content is fact checked by our senior editorial staff to reflect accuracy and ensure our readers get sound information and advice to make the smartest, healthiest choices.

We adhere to structured guidelines for sourcing information and linking to other resources, including scientific studies and medical journals.

If you have any concerns about the accuracy of our content, please reach out to our editors by e-mailing editors@bestlifeonline.com.

New Study Finds Surprise on Keto Diet and Heart Disease

High cholesterol may not be as bad as we think.

new research on heart health related to the keto diet

A year-long study by The Lundquist Institute has found no definitive link between high cholesterol and heart disease for those following the ketogenic diet – a surprising twist that challenges conventional medical wisdom.

Otherwise healthy participants who were on the keto diet for an average of five years showed no direct correlation with atherosclerosis. Instead, the study identified baseline plaque burden - not high cholesterol levels - as the strongest predictor of plaque progression. The findings suggest that elevated cholesterol may not be as harmful as previously believed.


RELATED: The 5 Most Popular Diets in the U.S.—And Which One Is Most Effective.

While there is evidence that the keto diet isn't for everyone, this latest research provides compelling support for its potential benefits in certain populations. It's important to note that are many other factors for heart disease that require individualized or targeted care.

Last year, Harvard Medical School published evidence that the keto diet may not be heart healthy for some, and it may actually "raise heart disease risk." However, a 2023 study from Siedlce University in Poland, published in Nutrients, highlighted several benefits of the keto diet for cardiovascular health, including improved blood pressure levels.

Another recent study found the keto diet may even reverse biological aging by up to six years for individuals with obesity. Still, researchers like Dr. Aaron Hengist from the Unviersity of Bath have warned that persistently elevated cholesterol levels, a possible outcome of the diet, could have long-term consequences like increased heart disease risk.

Heart disease remains America's leading cause of death with an alarming new fatality every 34 seconds. In addition to diet, living a health lifestyle with regular physical activity and proper sleep management are critically important.

The keto diet is centered around low carbohydrates and high fat, with moderate amounts of animal or plant-based protein, dairy, and non-starchy vegetables. It notably restricts most fruits, legumes, and whole grains due to their higher carbohydrate content. The diet has surged in popularity over the last decade with claims of rapid weight loss, but the debate continues over long term impact on heart health and disease risk.

Key Takeaways

  • A year-long study by The Lundquist Institute found no definitive link between high cholesterol and heart disease for those on the keto diet.
  • Baseline plaque levels, not cholesterol alone, were the strongest predictor of disease progression.
  • The keto diet may offer benefits for some, but risks remain, especially with long-term cholesterol elevation. A personalized, holistic approach to heart health is essential.

We offer the most up-to-date information from top experts, new research, and health agencies, but our content is not meant to be a substitute for professional guidance. When it comes to the medication you're taking or any other health questions you have, always consult your healthcare provider directly.

TAGS:
Sources referenced in this article

JACC | Plaque Begets Plaque, ApoB Does Not: Longitudinal Data From the KETO-CTA Trial

New research from The Lundquist Institute finds ketogenic diet-induced high cholesterol does not predict heart disease

Harvard Medical School | Keto diet is not healthy and may harm the heart

Nutrients | The Ketogenic Diet and Cardiovascular Diseases

National Heart, Lung, and Blood Institute | Calculating risks for heart disease

News Medical | New research reveals keto diet’s impact on cholesterol and gut microbiome