If High LDL Doesn’t Signal Heart Risk, What Does? Critical Blood Tests

Beyond cholesterol, what tests paint a more reliable picture of heart disease risk? Is cutting out red meat really the “health measure” that we’ve been told?

In this episode of “Vital Signs,” Dr. Anthony Chaffee revisits landmark studies and lesser-known data, raising questions about whether lowering cholesterol alone truly improves health outcomes. 

He points to historical trials where reductions in cholesterol did not clearly translate into fewer heart attacks—and explores why some modern research links higher LDL levels with longevity in certain populations.

The conversation shifts from cholesterol to a broader lens: metabolic health. Markers such as insulin, blood glucose, and inflammation may offer deeper insight into cardiovascular risk than a single lipid number. 

Chaffee also highlights how dietary patterns—particularly low-carbohydrate and ketogenic approaches—can affect these markers, often leading to a paradoxical rise in LDL alongside improvements in other indicators.

At the heart of the discussion is a larger question: Are we focusing on the right signals when assessing heart disease risk?

Up Next: 

WATCH Carnivore Debate ⇒ Constipation, Gout, Kidney Stones on Zero Carb | Anthony Chaffee, MD

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Related/Referenced studies:

Use of dietary linoleic acid for secondary prevention of coronary heart disease and death: evaluation of recovered data from the Sydney Diet Heart Study and updated meta-analysis | The BMJ

Re-evaluation of the traditional diet-heart hypothesis: analysis of recovered data from Minnesota Coronary Experiment (1968-73) – PubMed

Sugar Industry and Coronary Heart Disease Research: A Historical Analysis of Internal Industry Documents | Lifestyle Behaviors | JAMA Internal Medicine

Lack of an association or an inverse association between low-density-lipoprotein cholesterol and mortality in the elderly: a systematic review – PubMed

Total cholesterol and all-cause mortality by sex and age: a prospective cohort study among 12.8 million adults – PubMed

Blood biomarker profiles and exceptional longevity: comparison of centenarians and non-centenarians in a 35-year follow-up of the Swedish AMORIS cohort – PubMed

Lipid levels are inversely associated with infectious and all-cause mortality: international MONDO study results – PubMed

Higher Plasma LDL-Cholesterol is Associated with Preserved Executive and Fine Motor Functions in Parkinson’s Disease – PubMed

Los Angeles Veterans Administration Diet Study | Nutrition Reviews | Oxford Academic

Use of dietary linoleic acid for secondary prevention of coronary heart disease and death: evaluation of recovered data from the Sydney Diet Heart Study and updated meta-analysis | The BMJ

Dietary Cholesterol and the Lack of Evidence in Cardiovascular Disease – PubMed

The Effect of HMG-CoA Reductase Inhibitors on Cognition in Patients With Alzheimer’s Dementia: A Prospective Withdrawal and Rechallenge Pilot Study

A History of Diabetes: From Antiquity to Discovering Insulin – PubMed

Vitamin B12 status and rate of brain volume loss in community-dwelling elderly | Neurology

Overview: Vitamin B12 Assay, Serum 

The Principles and Practice of Medicine

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Vital Signs’ host, guests, and contributors offer general information on improving health and wellness. This is not intended as a diagnosis or medical advice. You should consult your medical doctor or holistic doctor before implementing any suggested strategies for health and wellness improvement, including those related to preventing or treating specific diseases featured on this program. 

Views expressed in this video are opinions of the host and guests, and do not necessarily reflect the views of The Epoch Times.