πŸ“Š Dosage Chart Guide

Thyrovanz Conversion Chart – NDT Dosage, T3/T4 & Lab Reference Guide

By Editorial Team Β· 2025 Β· 10 min read

Important Note: This guide is for educational purposes only. Thyroid dosing β€” especially for NDT or prescription thyroid medications β€” must always be supervised by a licensed healthcare professional. Never self-adjust prescription doses based on a chart alone.

Understanding Thyroid Hormones: T3 & T4

The thyroid gland produces two primary hormones that regulate metabolism, energy, body temperature, heart rate, and dozens of other critical functions:

Thyrovanz supports the natural production AND conversion of these hormones. For the science behind this, see our Thyrovanz thyroid support article.

NDT Conversion Chart (Natural Desiccated Thyroid)

Natural Desiccated Thyroid (NDT) products β€” including those derived from bovine or porcine glands β€” contain both T4 and T3 in a natural ratio. Here is how standard NDT grain doses generally compare to synthetic hormone equivalents:

NDT Dose (Grains) Approx. T4 (mcg) Approx. T3 (mcg) Levothyroxine Equiv. Notes
ΒΌ grain (15 mg)~19 mcg~4.5 mcg~25 mcgVery low starting dose
Β½ grain (30 mg)~38 mcg~9 mcg~50 mcgCommon starting dose
1 grain (60 mg)~76 mcg~18 mcg~100 mcgStandard reference dose
1.5 grains (90 mg)~114 mcg~27 mcg~150 mcgMid-range
2 grains (120 mg)~152 mcg~36 mcg~200 mcgCommon maintenance
2.5 grains (150 mg)~190 mcg~45 mcg~250 mcgHigher maintenance
3 grains (180 mg)~228 mcg~54 mcg~300 mcgHigh range β€” physician supervision essential

⚠ These are general reference values. Actual ratios vary by brand and product. Always verify with your prescribing physician.

Thyroid Lab Reference Ranges

Understanding your thyroid blood test results is essential for anyone managing thyroid health. Below are the commonly referenced normal ranges, along with what deviations typically indicate:

TestOptimal RangeLow ResultHigh Result
TSH0.5 – 2.5 mIU/LMay indicate hyperthyroidMay indicate hypothyroid
Free T40.9 – 1.8 ng/dLLow thyroid outputPossible overproduction
Free T32.5 – 4.4 pg/mLPoor T4β†’T3 conversionPossible hyperthyroidism
Reverse T3<15 ng/dLNormalT3 receptor blocking likely
TPO Antibodies<35 IU/mLNormalAutoimmune thyroid condition

⚠ Lab ranges vary by laboratory and patient population. Always interpret results with your healthcare provider.

How Thyrovanz Supports These Levels Naturally

Rather than introducing external thyroid hormones, Thyrovanz provides the nutritional building blocks and cofactors that support your own thyroid's ability to produce and convert hormones optimally:

🧬 Supporting T4 Production

Iodine (from Kelp and Bladderwrack) and L-Tyrosine are the two primary raw materials for T4 synthesis. Zinc and Copper act as enzymatic cofactors in this process. Thyrovanz supplies all of these in one formula.

⚑ Enhancing T4 β†’ T3 Conversion

Selenium is the critical nutrient for activating deiodinase enzymes β€” the proteins responsible for removing one iodine atom from T4 to create active T3. Magnesium also plays a supporting role in this conversion pathway.

πŸ“‰ Reducing rT3 Accumulation

Chronic stress elevates cortisol, which shunts T4 conversion toward inactive rT3 rather than active T3. Ashwagandha in Thyrovanz helps regulate cortisol, keeping the T4-to-T3 conversion ratio healthy.

πŸ›‘οΈ Protecting Thyroid Cells

Selenium and Molybdenum act as antioxidants within the thyroid gland, protecting it from oxidative damage caused by the hydrogen peroxide generated during hormone synthesis.

When Should You Use a Supplement vs. Medication?

Thyrovanz is a dietary supplement β€” not a thyroid medication. It is appropriate for:

It is NOT a substitute for prescribed thyroid medication (such as Levothyroxine or Armour Thyroid) in cases of clinical hypothyroidism. Always work with your doctor if you have a diagnosed thyroid condition.

For more context, see our Thyrovanz review and the complete supplement buyer's guide.

Support Your Thyroid Naturally

12 research-backed ingredients. 60-Day Money-Back Guarantee. From just $49/bottle.

Order Thyrovanz Now β†’