Johnny Harris: Your Supplements are a Lie [Fact Checked]

Physionic

Jan 22, 2024

Episode description

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REFERENCES
[1] O'Connor EA, Evans CV, Ivlev I, et al. Vitamin and Mineral Supplements for the Primary Prevention of Cardiovascular Disease and Cancer: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force. JAMA. 2022;327(23):2334-2347. doi:10.1001/jama.2021.15650

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#supplements #supplementsthatwork #johnnyharris

Episode description

Mindsip insights from this episode:

Rethink vitamins and supplements for disease prevention

A large meta-analysis of 84 studies concluded that vitamins and supplements are generally associated with little or no benefit in preventing cancer, cardiovascular disease, and death.

#cancer

#supplement

Avoid beta-carotene to reduce lung cancer risk

Taking beta-carotene was linked to an increased risk of lung cancer and other harmful outcomes, particularly for people already at high risk.

#cancer

#supplement

Utilize multivitamins to enhance cancer outcomes

When analyzing the data closely, it was found that multivitamin use did improve cancer outcomes, although the effect was very small.

#cancer

#supplement

Consider nutritional sufficiency when interpreting study results

The studies in the meta-analysis were performed on people who did not have nutritional deficiencies, which significantly impacts the interpretation of the results.

#nutrition

#research

Leverage multivitamins for added cancer prevention benefits

The fact that multivitamins showed even a small cancer prevention benefit in people who are already nutritionally competent suggests a potential added advantage beyond just diet.

#cancer

#supplement

Interpret beta-carotene findings without high-risk group bias

The negative findings on beta-carotene are difficult to apply to the average person because the data mixed in high-risk groups like smokers and those with asbestos exposure.

#risk

#supplement

Recognize diverse reasons for supplement use beyond disease prevention

People often take supplements for reasons other than preventing major diseases, such as for cognition, energy, or allergy relief, which this analysis doesn't cover.