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low carb and thyroid clarification

Commented on August 29, 2011
Created August 29, 2011 at 4:02 AM

I've been reading the series of posts on thyroid function over at Perfect Health Diet and I think I'm following pretty well. I also read all of Chris Kresser's posts.

It seems that cortisol (possibly elevated from chronic low carb-ing) could reduce T3 levels. Could it also reduce TSH levels?

Mat Lalonde said this on a Robb Wolf podcast regarding his autoimmune protocol:

"I think you should follow a low-ish carbohydrate diet. Keep in mind that might increase TSH levels, but that doesn???t mean it's pathological."

Why would a low-ish carb (I assume he doesn't mean ketogenic) diet raise TSH?

thanks

64433a05384cd9717c1aa6bf7e98b661

(15236)

on August 29, 2011
at 04:40 AM

oh yeah, duh. thanks

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4bf5827bfb7df85c5b4b485db0945e64

(1386)

on August 29, 2011
at 04:27 AM

It is a negative feedback loop so when ever you decrease T4/T3, your pituitary will secrete more TSH... And vice versa.

64433a05384cd9717c1aa6bf7e98b661

(15236)

on August 29, 2011
at 04:40 AM

oh yeah, duh. thanks

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