Here is a thread I started on it:

http://forums.1fast400.com/?showtopic=12953&hl=lean+extreme

It's quite amazing the rubbish that's posted on the internet.

Let me clarify - T3 is the most potent of all thyroid homones (T1, T2, T3 and T4) - elevating T3 levels = hyperthyroidism = CATABOLISM = muscular atrophy

Whoever states that T3 is anabolic is an idiot.

Accordingly bodybuilders use T3 as a fat-burning agent, but it will also eat into your hard earned muscle tissue if you are not careful with correct dosing.

It is essential to stack T3 (and T3 boosters) with anabolic compounds to minimize muscle loss.

Moderation is key - take too much 7-Keto and watch your muscles shrink over night - you have been warned!

Heres an important question:

How do you know your cortisol levels are too high, and have you tried correcting with diet before doing something dangerous to your body?