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Barbell Medicine Podcast

Episode #235: August 2023 Research Review

Aug 9, 2023
The hosts discuss recent studies on exercise and blood pressure, supplement contamination, and machines vs free weights. They talk about training on medications and the risks involved, as well as powerlifting and upcoming events. They delve into the effects of exercise on blood pressure and managing cardiovascular risk. They highlight inaccurate labeling and contamination in dietary supplements. Lastly, they discuss exercise selection based on goals and intent.
01:10:40

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Quick takeaways

  • Dietary supplements are often inaccurately labeled and contaminated, making it important to exercise caution when purchasing them.
  • Aerobic training, resistance training, and isometric exercise can all have a positive impact on reducing blood pressure, but individual factors need to be considered to tailor exercise recommendations.

Deep dives

Many dietary supplements inaccurately labeled and contaminated

A study found that approximately 30% to 50% of dietary supplements are incorrectly labeled and 20% may be contaminated. The most common areas of contamination are muscle-building, sexual enhancement, and weight loss supplements. The lack of pre-market testing by the FDA allows these issues to occur. Manufacturers violators of good manufacturing practices, and some do not register with the FDA. The study tested 57 products and found that 23 of them did not contain the labeled ingredient, and only 6 had the ingredient within 10% of the labeled quantity. 12% of the products contained FDA-prohibited ingredients, including a fedrin-related stimulant and a cardiac stimulant. It is important to be cautious when purchasing dietary supplements due to potential inaccuracies and contamination.

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