Page 1 of 2 12 LastLast
Results 1 to 10 of 16

Thread: T3 - for fat loss

  1. #1
    MTS STAFF - formally MR BIG BIGDADDY's Avatar
    Join Date
    Jan 2015
    Posts
    2,324
    Blog Entries
    45

    T3 - for fat loss

    T3 (liothyronine)
    by Bill Roberts

    T3 (triiodothyronine, liothyronine, Cytomel) is a thyroid hormone drug fairly commonly used for fat loss, particularly in the context of anabolic steroid cycles. T3 is naturally produced in the body as a result of T4 (thyroxine) production by the thyroid. Oral administration of T3 can yield higher levels of serum T3 than would occur naturally, allowing faster fat loss and in some cases potentially greater GH production and greater anabolism.

    The problem of instability of T3

    The first thing to consider about dosing of T3 is that the drug itself has poor stability, resulting in loss of potency with time even with some tabletted pharmaceutical products. Liquid preparations are even more prone to loss of potency. Dosings given below refer to fully potent T3, as found with US-made or European pharmaceutical products still within expiration date. In many instances, other T3 products will contain less or even much less T3 than the label may indicate.

    For this reason, I recommend seeking out genuine pharmaceutical T3, preferably of American or European origin. Otherwise, dosing can be uncertain or deceptive. For example, a person might find “150 mcg” per day to be an appropriate dose for him when using a low-potency product, but an extreme overdose when using a full-potency product.

    Dosages of T3

    There are two approaches to dosing T3 that I recommend.

    In the first approach, the goal is to achieve an ongoing edge in fat loss or to help maintain a near-personally-ideal body composition. In this approach, T3 dosing is very low, preferably 12.5 mcg/day but in some cases as much as 25 mcg/day. At the lower end of this range, typically thyroid testing will show no detectable suppression even with prolonged use. At the higher end, moderate suppression is sometimes seen, but results are superior to when T3 is not taken, and the suppression reverses rapidly upon discontinuing T3 use.

    In the second approach, the goal is to achieve a quite substantial increase in rate of fat loss, at the known cost of inducing thyroid suppression. Most preferably the dosage is about 50 mcg/day, but in some instances can be as high as 75 mcg/day. Such use is preferably not ongoing, but only for a limited period of time such as 8-12 weeks, though there’s no exact requirement for timeframe.

    Dividing dose of T3

    Because T3 has a short half-life, divided doses are preferable to a single dose, except where total daily dosing is small. For example, with a dosing of 12.5 mcg.day this would best be taken as a single dose in the morning, but with 50 mcg/day, dividing the daily amount into three or four doses would be better than taking the entire amount at one time.

    Post-cycle suppression of natural thyroid production

    After extended use of T3 at a suppressive dose, natural production is suppressed for some time after discontinuing T3 use. Generally the duration appears related to the length of use. In cases of brief usage there’s typically no noticeable period of low function post-cycle, but with extended cycles the duration of low function can be measured for as long as about six weeks in some cases.

    The literature article “Recovery of pituitary thyrotropic function after withdrawal of prolonged thyroid-suppression therapy” provides an example of difficulty that can be encountered in recovering good thyroid production after a long period of oral thyroid use.

    While in this study all the subjects did recover “normal” thyroid production, as also happens routinely in bodybuilding use, the “normal” that they ended up with was the rock-bottom end of the normal range, about 40 mcg/dL total serum T4 and about 80 ng/dL total serum T3. These are not levels one wants to be at, and are low enough that metabolism would be impaired.
    Effects of excessive dosage of T3

    High dosage of T3, typically starting at about 75 mcg/day but in some cases not starting until about 100 mcg/day, can cause tachycardia (elevated heart rate) and muscle weakness, and can be catabolic or at the least reduce anabolism. High dose anabolic steroids, of course, tend to mask this latter effect.

    Very high levels of T3 are dangerous to the heart.

    Interaction of high serum T3 with IGF-1

    High levels of T3 reduce levels of IGF-1, which can reduce anabolic effectiveness of GH, but does not change fat-loss effectiveness of GH.

    This effect causes some to view T3 as relieving side effects of GH; actually, what is occurring is the T3 is making the same dose of GH produce less IGF-1 in the body than usual. It would be more efficient simply to reduce dose of GH to a personally-suitable level.

    The effect of blunting GH effectiveness is particularly pronounced when T3 dosage is greater than 50 mcg/day, and seems unnoticeable if present at all at dosings such as 25 mcg/day.

    Summary

    T3 is a very effective compound for aiding fat loss, but has serious side effects when overdosed. With proper care, it’s an easily-cycled compound. Because T3 has limited stability, it’s best sourced from quality pharmaceutical products, with a second choice being Third World generics or relatively-fresh powder which has been carefully measured. Liquid products can lose potency rapidly and therefore are not preferred.

  2. #2
    Well written post BIG, Thanks.

  3. #3
    Really good info. I never used t3 because i suffer from thyroid issues but i think it is a bit overrated.
    Just have a diet which is on point and do your cardio and most people will be fine loosing enough fat.
    If you want to step on stage thats another story

  4. #4
    Quote Originally Posted by Drako View Post
    Really good info. I never used t3 because i suffer from thyroid issues but i think it is a bit overrated.
    Just have a diet which is on point and do your cardio and most people will be fine loosing enough fat.
    If you want to step on stage thats another story
    Not over rated, It works, Its potent & something that cant be abused. Period.

    Especially upwards of 75mcg & if you dont feed yourself properly, you will loose fat AND muscle at the same time.

  5. #5
    Quote Originally Posted by Nitrox View Post
    Not over rated, It works, Its potent & something that cant be abused. Period.

    Especially upwards of 75mcg & if you dont feed yourself properly, you will loose fat AND muscle at the same time.
    Indeed, i have seen with my own eyes people take 100mcg a day and despite the amount of gear they were on, looked awful.

    There is no need IMO to go above 50mcg.

  6. #6
    T3 has a half life between 1-2 days (let's just say 36 hours to split the difference). Once daily dosage is fine. If wanting to avoid suppression of thyroid then multiple low doses is OK to mimic the natural release pattern of thyroid hormones but for our purposes once daily is fine.

  7. #7
    i love 25 mcg when bulking and on hgh
    50mcg when cutting. if my BP gets out of whack I will drop it to 25mcg for 1-2 weeks then up it again.

  8. #8
    Can't wait to see what results I get

  9. #9
    Quote Originally Posted by SRRRRR View Post
    Can't wait to see what results I get
    You'll love it if you keep diet and cardio in check. Make sure you're running gear while on as well to minimize muscle lost though that effect is blown out of proportion often. Usually anything under 100mcg you don't have to worry about losing muscle if you're not being retarded and starving yourself

  10. #10
    Quote Originally Posted by Serotonin101 View Post
    You'll love it if you keep diet and cardio in check. Make sure you're running gear while on as well to minimize muscle lost though that effect is blown out of proportion often. Usually anything under 100mcg you don't have to worry about losing muscle if you're not being retarded and starving yourself
    Starting some clen on monday that i'd cycle it with but ive already got some ecas

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •