Also Known As

T2, or 3,5-Diiodothyronine, is recognized by several scientific names that describe its chemical structure and function. These include:

  • 3,5-Diiodothyronine
  • 3,5-T2
  • 2-Amino-3-[4-(4-hydroxyphenoxy)-3,5-diiodophenyl]propanoic acid


T2 is classified within the class of iodothyronines, which are active thyroid hormones. It is characterized by having two iodine atoms at positions 3 and 5 of its inner ring. This specific configuration contributes to its biological activity and effects on metabolism.


T2 is primarily touted for its potential in aiding weight loss through its fat-burning capabilities. It is believed to stimulate the TR-beta receptor for thyroid hormones, which plays a critical role in metabolic regulation. As such, it finds use in dietary supplements aimed at boosting metabolism and reducing fat storage.


3,5-Diiodothyronine, or T2, is an active thyroid hormone known for its role in metabolic processes. By stimulating specific receptors for thyroid hormones, T2 can enhance metabolic rate and contribute to fat loss. Despite its promising benefits, its use is often limited to supplemental forms due to the lack of standard dosage guidelines. Key points about T2 include:

  • Functions as an active thyroid hormone with significant roles in metabolism
  • Touted for fat burning and metabolic boosting capabilities
  • Lacks a standardized dosage for supplementation

Common Dosage

Currently, there is no established common dosage for T2. Dosage guidelines for T2 supplements can vary widely, and it’s important to consult healthcare professionals for advice tailored to individual health needs and goals.


T2, or 3,5-Diiodothyronine, stands out for its potential benefits in enhancing metabolic rate and promoting fat loss. As an active thyroid hormone, it holds promise for those looking to improve their metabolic health through supplementation. Key takeaways include:

  • Acts by stimulating thyroid hormone receptors to enhance metabolism
  • Utilized in supplements for its potential fat-burning effects
  • Lacks an established dosage, necessitating consultation with healthcare providers

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