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Mastering Nutrition

Hi, I'm Chris Masterjohn and I have a PhD in Nutritional Sciences. I am an entrepreneur in all things fitness, health, and nutrition. In this show I combine my scientific expertise with my out-of-the-box thinking to translate complex science into new, practical ideas that you can use to help yourself on your journey to vibrant health. This show will allow you to master the science of nutrition and apply it to your own life like a pro.
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Dec 26, 2016

In episode 30, I talk about the use of zinc lozenges to fight colds. While nutritional zinc does support the immune system and your immunity may benefit from zinc supplements or zinc-rich foods, this has nothing to do with the use of zinc lozenges to kill colds. The science behind their use is strong, but it also suggests that most of the dozens of zinc lozenges on the market are absolutely useless. The only ones I currently use and recommend are Life Extension Enhanced Zinc Lozenges.

This episode is brought to you by Kettle and Fire Bone Broth. Use the link kettleandfire.com/chris to get $10 off your first order.

This episode is also brought to you by US Wellness Meats. Head to grasslandbeef.com and enter "Chris" at checkout to get 15% off your order as long as the final price is over $75 and you order fewer than 40 pounds of meat. You can use "Chris" to get the same discount twice.

In this episode, you will find all the following and more: 00:37 Cliff notes; 12:55 Zinc status is important to immune function, but that's not what this podcast is about. Nevertheless, I go through basic tips of getting good zinc nutrition; 16:48 My typical use of zinc for colds has missed the point; 18:08 Zinc has to be a lozenge to kill the common cold. In fact, the original discovery of its role in killing the cold was born from a child refusing to swallow a tablet and letting it dissolve in her mouth; 20:15 The main mechanisms by which zinc kills colds; 21:10 Importance of zinc ionization in nasal and adenoid tissue; 23:26      Importance of taking it at the right time (first couple of days of a cold); 27:10 pH of nose and throat tissue, not saliva, is important; 27:55 Gluconate and acetate are effective, but acetate is twice as effective as gluconate; 29:08 Astringency and metallic taste must be present, but are not sufficient; 31:35 Food acids used to cover taste such as citrate or tartrate cannot be present; 34:30 Magnesium cannot be present in a form that ionizes in the nose and throat; 36:30 Time of contact with membranes makes concentration, time to dissolve, and frequency of use important 39:50 Meta-analysis of randomized controlled trials; 42:20 Meta-analysis of individual patient data and lack of effect of age, sex, baseline cold severity, allergy status, race, and ethnicity; 44:00 George Eby's model showing a strong correlation between predicted ionic zinc yield and efficacy in RCTs suggests that the right dose of the right formulation taken at the right time in the right way could constitute a true cure of the common cold; 45:45 Only Life Extension Enhanced Zinc Lozenges fit the criteria; 54:13 My story with Life Extension zinc acetate lozenges.

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