Mastering Nutrition The Medical Myth That Nutritional Deficiencies Are A Thing of the Past
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Dec 7, 2025 The discussion kicks off with iodine testing and thyroid hormone insights. A compelling argument surfaces, challenging the belief that nutritional deficiencies are a thing of the past. It highlights how initiatives to reduce salt intake have unintentionally stripped away vital iodine sources. Finally, a cardiologist reveals a surprising resurgence of goiter cases, reminding listeners that iodine deficiency is making a comeback.
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Patients Presenting With Unexpected Iodine Deficiency
- The speaker reports women on thyroid hormone often test low for iodine and had never been checked before.
- A Midwestern cardiologist now sees patients presenting with goiters because iodine intake declined.
Medical Assumption That Deficiencies Are Finished
- Medicine assumes nutritional deficiencies were solved a century ago and often stops testing for them.
- That assumption overlooks changes in diet and public health guidance that reintroduce deficiency risks.
Fortification Can Backfire When Behaviors Change
- Public health measures can unintentionally create new deficiency risks when behaviors change.
- Reducing salt intake removed an unrecognized iodine source and renewed iodine deficiency.