High Intensity Health with Mike Mutzel, MS

LIVE: 'Red Meat Causes Diabetes' Harvard Scientists Claim: Flawed Study Breakdown

Oct 24, 2023

This podcast discusses a flawed Harvard study that attempts to link red meat consumption to diabetes. The speaker highlights issues with comparing populations and confounding factors. They also explore healthy user bias, hormone use, and environmental claims. Additionally, they discuss the impact of diet on health and flaws in epidemiological studies.

25:22

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Quick takeaways

The study on red meat and diabetes suffers from healthy user bias, comparing healthier individuals who consumed less red meat to relatively unhealthy individuals who consumed more red meat.

The study fails to adequately consider confounding variables such as lifestyle factors and other dietary choices, raising questions about the claim that red meat is the main driving factor behind type two diabetes.

Deep dives

Healthy User Bias and Red Meat

The podcast episode discusses a study that claims a link between red meat consumption and an increased risk of developing type two diabetes. However, the speaker argues that the study suffers from healthy user bias, as the individuals who consumed less red meat were generally healthier overall. They exercised more, smoked less, drank less alcohol, ate fewer calories, and took multivitamins. The speaker also questions the comparison of red meat to soda consumption, highlighting that the risk of developing diabetes from drinking five sodas per week is similar to the risk associated with high red meat consumption, which is not logical.

Introduction

2min

Red Meat Consumption and Diabetes Risk

7min

Discussing Healthy User Bias, Hormone Use, and Environmental Claims from a Flawed Study

2min

Red Meat Consumption and Risk of Type Two Diabetes

10min

The Impact of Diet on Health and the Flaws in Epidemiological Studies

2min

Let's discus the latest epidemiological study attempting to vilify meat yet ignoring healthy user bias of study participants.

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Link to expanded show notes & video review: https://bit.ly/3FrEq1H

Studies Mentioned:

Gu, X. et al. Red meat intake and risk of type 2 diabetes in a prospective cohort study of United States females and males. Am. J. Clin. Nutr. (2023) doi:10.1016/j.ajcnut.2023.08.021.

Study Time Stamps:

00:55 The Harvard study is flawed, comparing a healthy population to an unhealthy population.

04:18 Hazard ratio is the odds of an event or lifestyle contributing to a disease.

05:35 Red meat does not spike glucose and insulin to the same degree as soda.

06:45 Look at the baseline characteristics of study participants.

12:55 Processed meats are generally unhealthy.

16:25 Increasing red meat consumption usually results in less body fat.

20:05 They did not track sugar-sweetened beverages, which increase the risk of diabetes.

22:25 The study was funded by an NIH grant.

22:35 Vegans and vegetarians eat the most ultra processed food.

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High Intensity Health with Mike Mutzel, MS

LIVE: 'Red Meat Causes Diabetes' Harvard Scientists Claim: Flawed Study Breakdown