myths and misinformation about saturated fat and ... · pdf filemyths and misinformation about...

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Myths and Misinformation About Saturated Fat and Cholesterol: How Bad Science and Big Business

Created the Obesity Epidemic

Departments of Psychology, Molecular Pharmacology and Physiology, University of South Florida

and Research and Development Service, J.A. Haley Veterans Hospital

David Diamond, Ph.D.

2005 2006 2007 2008 2009 2010 2011 20120

100

200

300

400

500

600

700

800

Years

Bad News: Abnormal Blood Lipids

Triglycerides (mg/dl)

Heart Disease Risk

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Bad News: Abnormal Blood Lipids

Years

Total/HDL

2005 2006 2007 2008 2009 2010 2011 20124.5

5.0

5.5

6.0

6.5

7.0

Heart Disease Risk

The Solution: Diet Changes and Exercise

Total/HDL

2005 2006 2007 2008 2009 2010 2011 20124.5

5.0

5.5

6.0

6.5

7.0

Heart Disease Risk

Years

3

Diet Skinless Chicken, Low Fat Foods (Cheese, Yogurt), Olive Oil, Bread,

Vegetables, Fruit, Nuts, Cereal, Potatoes Total/HDL

2005 2006 2007 2008 2009 2010 2011 20124.5

5.0

5.5

6.0

6.5

7.0

Heart Disease Risk

Years

Total/HDL

2005 2006 2007 2008 2009 2010 2011 20124.5

5.0

5.5

6.0

6.5

7.0

Heart Disease Risk

X Diet

Skinless Chicken, Low Fat Foods (Cheese, Yogurt), Olive Oil, Bread, Vegetables, Fruit, Nuts, Cereal, Potatoes

Years

4

Total/HDL

2005 2006 2007 2008 2009 2010 2011 20124.5

5.0

5.5

6.0

6.5

7.0

Heart Disease Risk

X Diet

Skinless Chicken, Low Fat Foods (Cheese, Yogurt), Olive Oil, Bread, Vegetables, Fruit, Nuts, Cereal, Potatoes

Years

Really Scary News

2005 2006 2007 2008 2009 2010 2011 20120

100

200

300

400

500

600

700

800

Heart Disease Risk


!!

Years

5

2005 2006 2007 2008 2009 2010 2011 20124.5

5.0

5.5

6.0

6.5

7.0Total/HDL

Heart Disease Risk

!!

Years

Really Scary News

Obesity and Heart Disease in My Future

Years 2005 2006 2007 2008 2009 2010 2011 20120

145

150

155

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weight in 1980

Body Weight (lb) !!

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Myths and Misinformation:

Myth #1: Consumption of food high in saturated fat and cholesterol (beef, butter) makes people fat and causes heart disease

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Myth #2: - Cholesterol clogs arteries and causes heart disease -

You will live longer if you take medication to lower your cholesterol


Misinformation: Food and Drug Company-Supported Research and the government have provided incorrect recommendations on ideal sources of food

for optimal health – we have been misled




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Obesity

Heart Disease

Diabetes

Alzheimer s Disease

Hypertension

Stroke

Cancer

Arthritis

Metabolic Syndrome

Historical Perspective on Diet, Obesity and Health (1864 - Present)

5 5 >200 lbs Obesity-related health problems

William Banting (1797 – 1878)

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His doctor (Dr. William Harvey) prescribed a low carbohydrate diet:

Unlimited consumption of meat No potatoes, bread or sugar




His doctor (Dr. William Harvey) prescribed a low carbohydrate diet:

Unlimited consumption of meat No potatoes, bread or sugar

The Banting diet was a great success Banting lost 46 lbs, enjoyed great

health, and lived into his 80 s. (no clogged arteries!)



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An obese person ! may be given a diet of meat, excluding bread and potatoes, and

the patient will reduce to his normal weight. As soon as the patient returns to

his diet of bread and potatoes, he straightaway begins to increase in weight.

11889922

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=

1972 1864

Eat Meat (fat): Lose weight But is it a healthy diet?

Does eating red meat, full fat cheese, butter and eggs increase serum cholesterol?

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HDL (good cholesterol) Total Cholesterol Triglycerides

LDL (bad cholesterol) Ratio Total/HDL Blood Glucose

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Low Carb Diet (unlimited red meat): Lose Weight and Lower Cholesterol!

If a low carb diet reduces serum cholesterol, will a high carb diet (sugar) increase serum

cholesterol?

Low Carb Diet (unlimited red meat): Lose Weight and Lower Cholesterol!

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0 2 4 6 8 10 12 14 16 18 20

0

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600

0 2 4 6 8 10 12 14 16 18 20

150

200

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300

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Cholesterol (mg/dl)

Normal Diet No Sugar + Sugar No Sugar

Weeks

2005 2006 2007 2008 2009 2010 2011 20120

100

200

300

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500

600

700

800

Years

My Diet (2007 – Present) Eggs, Butter, Beef, Chicken (with the skin), Full Fat Cheese, Coconut,

Dark Chocolate, Nuts and Vegetables (Broccoli) Small Quantities of Fruit, Bread, Potatoes and Sugar

Heart Disease Risk


Low Carb Diet

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2005 2006 2007 2008 2009 2010 2011 20120

100

200

300

400

500

600

700

800


Years

Heart Disease Risk

70% Fat 20% Protein 10% Carbs

Low Carb Diet



Years 2005 2006 2007 2008 2009 2010 2011 2012

4.5

5.0

5.5

6.0

6.5

7.070% Fat

20% Protein 10% Carbs

Heart Disease Risk

Total/HDL

Low Carb Diet



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2005 2006 2007 2008 2009 2010 2011 20120

145

150

155

160

165

170

175

Body Weight (lb)

Years

weight in 1980

70% Fat 20% Protein 10% Carbs

Low Carb Diet



Our Current State of Confusion

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Consequences of the Fat Phobia

Carbohydrates

Fats

Protein

1970 1980 1990 2000

Excess Consumption of Carbs

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Simple Message to the Obese: Stop the Vilification of the Atkins Diet

It s ok to eat meat, lose weight!

Eat Less Carbs: Less Potatoes, Bread and Anything Sweet

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Myth #1: Consumption of food high in saturated fat and cholesterol (beef, butter) makes people fat and causes heart disease X

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How Did Food Recommendations Go Awry?

Deaths from Cardiovascular Disease

Lloyd-Jones et al, 2010. Circulation

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Keys (1953). Journal of the Mount Sinai Hospital New York

There is a remarkable relationship between death rate from heart

disease and the proportion of fat calories

in the national diet

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Keys (1953). Journal of the Mount Sinai Hospital New York

- Ancel Keys cheated - He selected data from 6 countries to create the

linear relationship. Data were actually

available from a total of 22 countries!

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No Significant Relation Between Fat Consumption and Heart Disease

Mortality (r2=0.1, p > 0.05)

Significant Relation Between Sugar Consumption and Heart Disease

Mortality (r2=0.41, p < 0.05)

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A generation of citizens has grown up since the Diet/Heart Hypothesis was launched as official dogma. They have been misled by the greatest scientific deception of our times: the notion that consumption of animal fat causes heart disease.

Coronary Heart Disease – Doing the Wrong Things

Nutrition Today (July, 1985)

George Mann, Sc.D., M.D. Professor, Nutritional Biochemist,

Vanderbilt University Associate Director of the Framingham Study

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Intake of total fat was not significantly associated with coronary events (heart attacks) or mortality

Intake of saturated fat (animal fat) was not significantly

associated with coronary events or mortality

Fatal heart disease was not reduced by low-fat diets or by replacing saturated (animal) fats with polyunsaturated

(vegetable) fats

Walter Willett, M.D. Chair, Department of Nutrition

Harvard School of Public Health

data on nearly 300,000 individuals ! clearly contradict the low-fat-is-good-health message ! the exclusive focus on adverse effects of fat may have contributed to the obesity

epidemic.

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Ancel Keys – Created the Artificial Link Between Fat and CHD Became Editor of Circulation

on the cover of Time Magazine, January, 1961

In 1977, a Senate Committee led by George McGovern released its "Dietary Goals for the United States." Without any evidence to support their conclusions, the committee identified fat as the

culprit causing obesity.

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The President of the US National Academy of Sciences, Dr. Philip Handler, an expert on metabolism, referred to

McGovern s Dietary Goals as nonsense .

Steak for Dinner, Angioplasty for Dessert? The Myth That Cholesterol Clogs Arteries

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Thanks solely to Madison Avenue promotion by commercial food producers and the American Heart Association, a great

many people imagine that if they lower their blood cholesterol ! they will prevent heart disease... Few people realize that there has

never been a proven, scientific relationship between lowering blood cholesterol levels and preventing heart disease

The Cholesterol Controversy, 1973

by Edward Pinckney, M.D. Editor of Journal of the American Medical Association

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An almost endless number of observations and experiments have effectively falsified the hypothesis that dietary cholesterol and fats, and a high cholesterol play a role in the causation of atherosclerosis and cardiovascular disease. The hypothesis is

maintained because allegedly supportive, but insignificant findings, are inflated and most contradictory results are ignored.

A hypothesis out-of-date: The diet-heart idea

by Uffe Ravnskov, M.D., Ph.D. Journal of Clinical Epidemiology, 55:1057-1063, 2002

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- of 480,000 men, screened the top 5% in cholesterol level (290 mg/dl) to be in the study

-!followed for 7.4 years, treated with cholestyramine or placebo

24% reduction in heart disease-related deaths!

- of 480,000 men, screened the top 5% in cholesterol level (290 mg/dl) to be in the study

-!followed for 7.4 years, treated with cholestyramine or placebo

24% reduction in heart disease-related deaths!

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Start: 480,000 men

98% (Placebo) vs 98.4% (Treated) Survived

Start: 480,000 men

0.4% becomes 24%

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Start: 480,000 men

0.4% becomes 24%

96.3% (Placebo) vs 96.4% (Treated) Survived

Start: 480,000 men

The $120 Million Study That Produced a Non-Significant Treatment Difference of 3 People!

= 0.1%

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The Drug Trial Failed Miserably – Lowering Cholesterol Had no Significant

Effect on Mortality

The Drug Trial Failed Miserably – Lowering Cholesterol Had no Significant

Effect on Mortality

The Lead Investigators Declared Victory – Predicting Heart Disease Would Be Eradicated With Drugs

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No sensible person can avoid the conclusion that the NCEP is an expensive fraud perpetuated by avaricious business

enterprises and dishonest scientists.

George Mann, Sc.D., M.D. Professor, Nutritional Biochemist,

Vanderbilt University

The Missing Conflict of Interest Statement

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ATP III Update 2004: Financial Disclosure

Dr. Grundy has received honoraria from Merck, Pfizer, Sankyo, Bayer, Merck/Schering-Plough, Kos, Abbott, Bristol-Myers Squibb, and AstraZeneca; he has received research grants from Merck, Abbott, and Glaxo Smith Kline. Dr. Grundy Dr. Cleeman has no financial relationships to disclose. Dr. Bairey Merz has received lecture honoraria from Pfizer, Merck, and Kos; she has served as a consultant for Pfizer, Bayer, and EHC (Merck); she has received unrestricted institutional grants for Continuing Medical Education from Pfizer, Procter & Gamble, Novartis, Wyeth, AstraZeneca, and Bristol-Myers Squibb Medical Imaging; she has received a research grant from Merck; she has stock in Boston Scientific, IVAX, Eli Lilly, Medtronic, Johnson & Johnson, SCIPIE Insurance, ATS Medical, and Biosite. Dr. Brewer has received honoraria from AstraZeneca, Pfizer, Lipid Sciences, Merck, Merck/Schering-Plough, Fournier, Tularik, Esperion, and Novartis; he has served as a consultant for AstraZeneca, Pfizer, Lipid Sciences, Merck, Merck/Schering-Plough, Fournier, Tularik, Sankyo, and Novartis. Dr. Clark has received honoraria for educational presentations from Abbott, AstraZeneca, Bristol-Myers Squibb, Merck, and Pfizer; he has received grant/research support from Abbott, AstraZeneca, Bristol-Myers Squibb, Merck, and Pfizer. Dr. Hunninghake has received honoraria for consulting and speakers bureau from AstraZeneca, Merck, Merck/Schering-Plough, and Pfizer, and for consulting from Kos; he has received research grants from AstraZeneca, Bristol-Myers Squibb, Kos, Merck, Merck/Schering-Plough, Novartis, and Pfizer. Dr. Pasternak has served as a speaker for Pfizer, Merck, Merck/Schering-Plough, Takeda, Kos, BMS-Sanofi, and Novartis; he has served as a consultant for Merck, Merck/Schering-Plough, Sanofi, Pfizer Health Solutions, Johnson & Johnson-Merck, and AstraZeneca. Dr. Smith has received institutional research support from Merck; he has stock in Medtronic and Johnson & Johnson. Dr. Stone has received honoraria for educational lectures from Abbott, AstraZeneca, Bristol-Myers Squibb, Kos, Merck, Merck/Schering-Plough, Novartis, Pfizer, Reliant, and Sankyo; he has served as a consultant for Abbott, Merck, Merck/Schering-Plough, Pfizer, and Reliant.

Dr. Grundy ! honoraria from Merck, Pfizer, Sankyo, Bayer, Merck/Schering-Plough, Kos, Abbott, Bristol-Myers Squibb and AstraZeneca; ! research grants from Merck, Abbott and Glaxo Smith Kline.




$150,000/drug company x 10 = $1,500,000/year!

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Dr. Bairey Merz ! honoraria from Pfizer, Merck, and Kos; she has served as a consultant for Pfizer, Bayer and Merck; she has received grants from Pfizer, Procter & Gamble, Novartis, Wyeth, AstraZeneca and Merck; she has stock in Boston Scientific, IVAX, Eli Lilly, Medtronic, Johnson & Johnson ...


$150,000/drug company x 10 = $1,500,000/year!

* These guidelines were developed by people with a financial conflict of interest.

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Are they wrong?

A Different Opinion From Scientists Unsupported by the Statin Industry

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*These guidelines were developed by people with a financial conflict of interest. **These guidelines have been disputed by scientists without a conflict of interest.

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Isn t there a benefit from statins in the reduction of cardiac events?

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"What if you put 250 people in a room and told them they would each pay $1,000 a year for a drug they would have to

take every day, that many would get diarrhea and muscle pain, and that 249 would have no benefit?"

Jerome R. Hoffman, M.D.

Professor of Clinical Medicine, UCLA School of Medicine

Isn t there a benefit from statins in the reduction of cardiac events?

Adverse Side Effects of Statins

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Adverse Side Effects of Statins: Erectile Dysfunction, Type 2 Diabetes, Rhabdomyolysis,

Acute Renal Failure, Cancer and Liver Dysfunction

Final 2 Issues:

What Caused the Increase in Deaths from Cardiovascular Disease in the 20th Century?

How is Cholesterol Involved in Heart Disease? Villain or Misunderstood Hero?

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Does Butter or Saturated Fat Consumption Parallel the Increase in Heart Disease-Related Death?


No Relation of Butter Consumption to Heart

Disease

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No Relation of Saturated Fat Consumption to

Heart Disease


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Clear Relation of Smoking to Heart

Disease


Cross Section of a Damaged Artery What Causes Coronary Heart Disease?

sugar

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What Causes Coronary Heart Disease?


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LDL

WBC


Thickening of the Artery Wall Following Repeated Injury and Repair

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Myth #1: Consumption of food high in saturated fat and cholesterol (beef, butter) makes people fat and causes heart disease X

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X





X X

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Misinformation: We have been misled




X X The Bittersweet End Of Humans as Hunters

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My Mentors

Anthony Colpo Gary Taubes Barry Groves

Paul Rosch, M.D. Jeff Volek, Ph.D. Rodney Hayward, M.D. Walter Willett, M.D. Joel Kauffman, Ph.D. John Abramson, M.D. Walter Willett, M.D., Ph.D. Robert C. Atkins, M.D. Uffe Ravnskoff, M.D., Ph.D. Germain Brisson, Ph.D. James H. Salisbury, M.D. Emmet Densmore, M.D. C. De Lacy Evans Marcia Angell, M.D. Jean Anthelme Brillat-Savarin John Abramson, M.D. George Mann, ScD., M.D. James H. Salisbury, M.D. Duane Graveline, M.D. Kilmer McCully, M.D. Nancy Appleton, Ph.D. Bruce Fife, C.N., N.D. Jay S. Cohen, M.D. William Rothstein, Ph.D. Edward H. Ahrens, M.D. Michael F. Oliver, M.D.

Edward R. Pinckney, M.D. and Cathey Pinckney Sally Fallon and Mary G. Enig, Ph.D.

Are there any questions?

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