Keto, High Cholesterol, and Longevity: Sorting Fact from Fiction | Prime MD Plus. See our doctor in the DFW area

Keto, High Cholesterol, and Longevity: Sorting Fact from Fiction

Dr. Divya Javvaji, MD
Prime MD Plus

Are you curious about the effects of the popular Keto diet on cholesterol levels and how it may influence your lifespan? As a medical professional, I understand the importance of exploring these topics with accuracy and responsibility. In this article, we’ll dive deep into the relationship between Keto, High Cholesterol, and longevity, separating fact from fiction.

There’s been much debate about whether a Keto diet can cause High Cholesterol. Let’s uncover the truth and understand the underlying mechanisms to gain a comprehensive understanding of how Keto affects our lipid profile and overall health.

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Does Keto Cause High Cholesterol?

A common concern surrounding the Keto diet is its potential to raise cholesterol levels. It’s important to note that not all cholesterol is harmful. Our bodies require cholesterol to build cell membranes, produce hormones, and aid in digestion. The Keto diet is typically high in fat and low in carbohydrates, which can lead to an increase in total cholesterol levels.

However, the increase is primarily attributed to an elevation in HDL cholesterol, commonly known as “good” cholesterol. HDL cholesterol helps remove LDL cholesterol (the “bad” cholesterol) from the bloodstream, reducing the risk of cardiovascular disease. Studies have shown that while total cholesterol may rise on Keto, the overall ratio of HDL to LDL cholesterol tends to improve, which is associated with a reduced risk of heart disease.

How Keto Can Affect Your Health and Longevity?

While the impact of Keto on cholesterol levels may be misunderstood, let’s explore how this diet can potentially influence your health and longevity:

  1. Weight loss and metabolic health: Keto has been shown to promote weight loss and improve metabolic health markers such as insulin sensitivity and blood sugar control. These factors play a crucial role in reducing the risk of chronic diseases and increasing longevity.
  2. Inflammation reduction: The Keto diet has demonstrated anti-inflammatory effects, which can help protect against various chronic conditions associated with inflammation, including heart disease and certain cancers.
  3. Enhanced brain function: Some research suggests that the Keto diet may improve cognitive function and protect against neurodegenerative diseases like Alzheimer’s, potentially contributing to a longer and healthier lifespan.
  4. Increased energy production: By switching to a high-fat, low-carbohydrate diet, the body becomes more efficient at utilizing fat as a fuel source. This shift may result in increased energy levels and improved physical performance, contributing to overall well-being and longevity.

While there are potential benefits, it’s essential to approach any dietary changes with caution and consult with a healthcare professional before embarking on the Keto diet, especially if you have existing health conditions or concerns.

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Data Source

The data presented on lifespan trends comes from, a highly reputable platform that provides comprehensive demographic data on mortality rates worldwide. It’s a collaborative project of respected research institutions such as the Department of Demography at the University of California, Berkeley; the Max Planck Institute for Demographic Research; and INED – French Institute for Demographic Studies.’s datasets are trusted globally by researchers and policy makers due to their rigorous research methods and commitment to privacy and ethical guidelines. As such, readers can be confident that our report offers precise insights into the lifespan trends backed by authoritative research.

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