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The Average Cow's Iodine Intake

The Average Cow's Iodine Intake - What It Means For You

Average Cows Require 12 mg/day of iodine.  What About You?

In order to raise a healthy calf, the average 1,000-pound milk cow requires 12 milligrams per day (12 mg/day) of iodine.  They usually get this in their feed, as grass and hay almost never contain enough iodine for a successful pregnancy and a healthy calf.

Without 12 milligrams of iodine per day, the calves become listless, non-responsive and can die.  Without 12 milligrams of iodine per day, a calf can be born deformed. And cows develop goiter, just like iodine-deprived human beings.

Let's do some math. You are not going to enjoy this.

First:  The average American adult male weighs 195 lbs.  The average American adult female weighs 168 pounds.  Don't dwell too long on that, but it's...not good.

Second: If an average 1,000-pound cow needs 12 mg of iodine per day, then - just mathematically - a 168-pound American woman would proportionally need just under 2 mg of iodine per day.  The US Recommended Daily Allowance today is 0.150 - 0.250 mg - or anywhere from 1/13th to 1/8th of 2 mg.

Third: What's going on here?  Is the RDA too low?  Some, perhaps many, doctors and observers believe so.  There are absolutely NO (and research says truly zero) adverse results from humans consuming 1 mg/day of iodine.  There are knowledgeable and responsible physicians who provide their patients with 50-100 mg (milligrams) of iodine daily, usually with a selenium supplement.

Fourth: What's the % of hypothyroidism in the US?  In two population-based studies, the prevalence of subclinical hypothyroidism ranged between 7.5 - 8.5% in women and 4.4% in men, Subclinical hypothyroidism prevalence increases in women with increasing age and is more common in elderly females (7–18%) than males (2–15%). 

The problem with these stats has to do with how we measure hypothyroidism.  Sadly, the measure we use is TSH - Thyroid Stimulating Hormone.  The most recent (and best) studies have shown that TSH can be normal, but clinical symptoms of hypothyroidism can readily be present.  We rely far (!!) far too much on "normative" values.  How a person feels, reacts, thinks, behaves is important, not what the blood-work numbers show. 

Next time you see your primary care doctor, ask for a consult with a top endocrinologist.  You might learn a great deal..and you might learn that you're hypothyroid, as many thoughtful physicians suspect. 

In our next post, we'll learn how subclinical hypothyroidism hurts you and those around, work, life in general.

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1 comment

Shine the light my friend. Great read. / Nov 16, 2019 at 11:30

When telling the truth is a revolutionary act.

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