Segments in this Video

Fat vs. Sugar Experiment (01:58)

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Twin doctors Chris and Xand Van Tullekan embark on month long extreme diets to determine whether sugar or fat is worse for our health.

Nutritional Theories (01:47)

Fat and sugar are considered unhealthy in the U.K. and U.S., respectively. Identical twin doctors Chris and Xand will conduct an experiment to see which research is correct.

Extreme Diet Experiment (02:09)

Xand will consume foods high in sugar and low in fat for a month, while Chris will consume foods high in fat and protein.

Baseline Metabolic Tests (01:51)

Excessive fat raises cholesterol and blocks arteries. Excessive sugar raises insulin and leads to diabetes. Chris and Xand measure their cholesterol and insulin levels.

Baseline Body Fat Test (02:38)

Chris and Xand have their body fat to muscle ratio measured to learn how fat and sugar diets affect their metabolism.

Brain and Metabolism (02:24)

Two weeks into their respective high-sugar and high-fat diets, Chris and Xand measure their cognitive functioning by training in financial trading.

Memory and Carbohydrates (02:45)

On a high fat diet, Xand's brain lacks glucose for complex cognitive function and he has trouble making trading decisions.

Brain Metabolism Results (01:57)

On a high-sugar diet, Chris is able to perform complex cognitive functions and does better than Xand at trading.

Hormone Hypothesis (03:36)

Dr. Robert Lustig explains that the liver turns excess fructose into liver fat. Glucose activates insulin, increasing fat and disease risks. Xand is skeptical due to a lack of comprehensive studies.

Fitness Test (08:11)

Chris and Xand test how extreme diets affect their endurance. Both suffer blood sugar drops; Chris wins after consuming glucose but Xand's body converts fat into sugar by burning muscle.

Body Fat Results (02:50)

Xand and Chris measure how high fat and high sugar diets have changed their body fat to muscle ratio. Learn why losing muscle mass is bad for our health.

Metabolism Test Results (03:48)

After a high sugar diet, Chris' insulin has increased. After a high fat diet, Xand's cholesterol is unchanged but his blood glucose is approaching pre-diabetic levels due to insulin resistance.

Comprehensive Fat vs. Sugar Studies (04:04)

Chris and Xand's twin metabolic experiment isn't definitive. Professor Susan Jebb's research shows there is no single dietary solution for health.

Donut Experiment (01:56)

Xand and Chris test which donut varieties New Yorkers and Londoners choose. Glazed are the most popular among both groups.

Obesity and Addiction Research (03:25)

Professor Paul Kenny has shown that the combination of fat and sugar is addictive to rats and humans and causes significant weight gain.

Fat and Sugar Combination (02:14)

Fat and sugar together has a narcotic effect on the brain and overpowers our ability to stop eating. Kenny's rats are most addicted to foods with a one to one ratio.

Smart Dietary Choices (03:08)

Glazed donuts have a 50-50 combination of fat and sugar that is linked to obesity. Cutting out addictive processed foods can help us lose weight and stay healthy.

Fat vs. Sugar Conclusion (01:24)

Chris and Xand have learned that processed foods combining sugar and fat are the most detrimental to our health.

Credits: Fat v Sugar (00:48)

Credits: Fat v Sugar

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Fat vs. Sugar


DVD (Chaptered) Price: $169.95
DVD + 3-Year Streaming Price: $254.93
3-Year Streaming Price: $169.95

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Description

What’s worst for you: fat or sugar? It's a question that's been generating huge amounts of heat in the world's media, from the outer reaches of the Internet to the front pages of The New York Times. So what's the scientific truth? In the greatest traditions of investigative science, twin doctors Chris and Xand Van Tullekan experimented with their own bodies—with one on a low fat diet and one on a low sugar diet. What do sugar and fat do to our metabolism? And which of these twin evils is worse? Horizon investigates and the results are surprising and unsettling. 

Length: 54 minutes

Item#: FMK60454

ISBN: 978-1-60057-498-6

Copyright date: ©2014

Closed Captioned

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Not available to Home Video and Publisher customers.


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