I thought I would post this, I take 12.5 mcg of t3 every morning. The noted positive psysiological effects of resonable dosages of thyroid hormones included: *Increased protien synthesis rate. *Increased rate of fat oxidation. *Increased sensitivity of receptors for androgens, Insulin, GH, IGF-1, PGE1, PGF2, Cloenbuterol, Ephedrine, Creatine and others. *Increased metabolic rate and calorie expenditure. *Enhanced oxygen consumption by most body tissues *Improved recovery time Thyroid hormones govern the body's metabolic rate. This means that the metabolism of nutrients and subsequent celluar utilization or storage rate is dependent upon blood circulatory thyroid levels. Higher levels result in elevated over all metabolic rate provided that other metabolic factors are accomidated aswell. THYROID HORMONES ARE ANABOLIC ------------------------------------------- Many athletes were not aware of the fact that thyroid hormones are a true form of absolute anabolic. The usual method of employment for thyroid hormones was during pre-contest periods. Obviously, this is beacuse increased thyroid levels means elevated metabolic rate and resulting increased calorie expenditure or use. This explanation itself suggest the noted anabolic potential. Thyroid hormones govern or regulate our metabolic-rate or metabolism. Metabolic rate is the speed or rate at which all chemical and physical processes occur. This is true of every living cell in our bodies. This means that the rate of nutrient metabolism, absorption and utilization is vastly dependent upon thyroid hormones. In fact the levels of thyroid hormones in our body determines if the food we eat is stored as adipose (fat) tissue, utilized for regeneration and building, or burned as heat/energy. How often have you heard some whale claim "its glandular" as they stuff another box of donuts? In some cases it is actually the truth. So fix it!! Low thyroid hormone levels slow healing/growth process while increasing fat stores. Overly high thyroid hormones levels result in tissue catabolism or wasting. But thyroid hormones levels result in tissue catabolism of wasting. But thyroid hormone levels matched to utrient supply and demand were commonly considered to be SERIOUSLY ANABOLIC.. Remember, training and chemical muscle enhancement protocols created a massive nutrient demand. If thyroid hormone levels are too low, no amount of calories will be an adequate supply simply because they are not metabolized at the necessary rate. This is why athletes often got needlessly big-time fat. They ate to keep up with major muscle chemistry, but failed to provide a metabolic rate to match. WHY ARE THYROID HORMONES ANABOLIC ------------------------------------------------- Thyroid hormones trigger the release of fat stores so other cells can convert the long chain triglycerides (fat) into heat, energy, ATP. By increasing ATP, muscle cells are better able to regenerate, and do so at an increased rate. Thyroid hormones increase creatine transport and increase androgen/GH/IGF-1/IGf-2 receptor-site sensitivity. Thyroid hormones increase the rate of nutrient metabolism, absorption, and utilization. Gee, sounds like the perfect growth enviroment to me when considering the fact that growing children do this naturally so well. It also meant major chemical muscle enhancement synergy for those whom reported use. Many would be suprised to realize how many top BB's remained "on cycle" with thyroid hormones all year long. This allowed maximum growth and recovery rates while preventing excessive fat accumulation even in the very breif "off-season". The difference in diet and mass phases was dosage, though some altered the term dosage to mean "available". Why did they include thyroid hormones in their mass stacks? Thyroid hormones can have a re-partitioning effect upon body composition or muscle-to-fat ratio. As example was the many athletes whose weight was over 250lbs but only 10% bodyfat when total daily circulating thyroid hormone levels were elevated 10-50%. This would be due to thyroid hormone activity inducing nutrient metabolism and celluar efficiency combined with other hormone synergy. A COUPLE NOTES OF INTEREST ------------------------------------ *According to reasearchers, calorie restricted periods that provide less than 2ggrams of protien per lb of bodyweight daily during thyroid hormone administration usually resulted in weight loss consisting of 75% fat and 25% muscle in most cases. *The 5-deiodinase enzyme activity necessary for liver conversion of T-4 into T-3 requires adequate levels of zinc and selenium. During calorie restricted periods lasting more than 2-3 weeks T-4 conversion to the more active T-3 decreases dramatically greatly reducing fat-loss. Adequate zinc intake and absorption prevents the decline in 5-deiodinase that causes this negative by about 67% and adequate selenium levels prevents the decline by about 47%. Obviously both in sufficent amounts are best. *Thyroid hormones were commonly cycled with Insulin, AAS, GH, IGF-1, PGF-2, Ephedrine, Clenbuterol, and other drugs by athletes.