WeightLossBanter - View Single Post - Fruit's phytochemicals without the sugar? By yogurt?

**Doug Freyburger** · December 5th, 2012, 11:34 PM posted to alt.support.diet.low-carb

wrote:
Doug Freyburger wrote:

Stay too low and in
various time frames two weeks to a year T3 then leptin then cortisol
levels interfere with benefits of lower carb.

I've seen that claim repeatedly on the web. But the only published studies I could find on it were mouse models. I even wrote to Jeff Volek (who wrote the most recent Atkins book) and he said

From: "Volek, Jeff"
Subject: Does Very Low Carb + Intense exercise cause Testosterone Drop?
Date: Nov 30, 2012 4:29 AM

T3 is one of the forms of thyroxine. Thyroid not testosterone.

The reason is simple. Evolved tendency towards homoestatis. Drop any
one macro nutrient too much and there is an evolved hormonal response to
react. The general form is called starvation mode, the basal metabolism
falling to resist fast loss. The specific form is T3 reduction to
acheive that reduction.