ThyroTwin Ingredients & Drug Interactions
by Giant Sports
What is this page for?
First and foremost: checking ThyroTwin against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
ThyroTwin is a dietary supplement by Giant Sports with 2 active ingredients. Its ingredients are commonly taken for weight loss and fat burning, boosting metabolism, bodybuilding and cutting.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of ThyroTwin by Giant Sports
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
ThyroTwin contains 2 active ingredients, both diiodothyronine compounds: 3,5-Diiiodo-L-Thyronine and 3,3'-Diiodo-L-Thyronine. These are thyroid-active compounds designed to influence thyroid function and metabolism.
The product also contains inactive ingredients — gelatin, magnesium stearate, and rice flour — which serve as the capsule material and flow agents.
Does it work?
Not established
The evidence for both ingredients in ThyroTwin is insufficient to rate. We don't have reliable data showing whether they work for diabetes, cholesterol levels, muscle strength, or weight management.
If you're considering this product for one of those purposes, the science backing these claims isn't established in our records.
How safe is it?
Some data gaps
Both ingredients in this product are thyroid-active compounds with limited human safety data. The facts note possible effects on the heart and thyroid function, so caution is warranted — especially if you have a thyroid condition or heart concern.
During pregnancy, these compounds should be avoided; thyroid-active substances can affect both mother and baby, and safety is unknown. The same goes for breastfeeding — there isn't enough data to know whether these ingredients pass into breast milk or what effect they'd have on an infant.
Talk with your doctor or pharmacist if you're pregnant, planning pregnancy, or breastfeeding.
Meds to double-check
No known interactions
No interactions are documented in our data for the ingredients we could check. That said, because ThyroTwin contains thyroid-active compounds, talk with your doctor or pharmacist before taking it alongside any thyroid medication, heart medication, or drug that's affected by thyroid hormone levels — they can confirm it's safe to combine in your specific situation.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. No medication interactions are currently documented, and some safety-information gaps remain.
ThyroTwin is a thyroid-active supplement with two diiodothyronine ingredients, but the evidence that either works for its claimed purposes is insufficient. Because these compounds affect thyroid function and the safety data is limited, this is one to clear with your own doctor or pharmacist before taking — especially if you have a thyroid condition, take thyroid medication, or have heart concerns.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Oct 10, 2014.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about ThyroTwin, straight from the product label.
| Brand | Giant Sports |
|---|---|
| Barcode (UPC) | 0640052143357 |
| Net contents | 90 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Oct 10, 2014 |
| DSLD ID | 37844 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for ThyroTwin by Giant Sports, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| 3,5-Diiiodo-L-Thyronine | 175 mcg | -- |
| 3,3'-Diiodo-L-Thyronine | 25 mcg | -- |
Other ingredients: Gelatin, Magnesium Stearate, Rice Flour
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Storage
Store in a cool, dry place between 55 and 85 degrees Fahrenheit. Keep out of direct sunlight.
Seals/Symbols
GIANT SPORTS
General Statements
Fat Loss Modulator & Metabolic Accelerant
- Helps Maximize Daily Caloric Burn Even When You Are At Rest* - Helps Increase Energy Production Via Thyroidal Enzymes* - Promotes Razor-Sharp Cuts And A Lean, Athletic Physique*
Consult with your physician prior to use of this product.
FDA Statement of Identity
Dietary Supplement
Precautions
Warnings: This dietary supplement is intended to be used in healthy adults 18+ years of age.
Do not use this product is you are nursing, pregnant, may be pregnant or are trying to become pregnant.
Do not use this product if you have been diagnosed with infertility, hypothyroidism, hyperthyroidism, have thyroid disease of any sort or take medications for any thyroid disorder.
Do not use this product if you have been diagnosed with infertility, hypothyroidism, hyperthyroidism, have thyroid disease of any sort or take medications for any thyroid disorder.
Do not use this product if you have high blood pressure or have been diagnosed with hypertension. Consult with your physician prior to using this product if you have any psychiatric or neurological condition, any heart or cardiovascular condition, have been diagnosed with high cholesterol or dyslipidemia or have been diagnosed with kidney or liver disease. Discontinue immediately and seek immediate medical assistance if you experience dizziness, severe headache, or shortness of breath. Discontinue the use of this product 14 days prior to any surgery. Individual responses to dietary supplement may vary considerably.
Under no circumstances should more than 2 capsules be consumed in a 24 hour period. This product should be used in conjunction with a proper diet and exercise program. This product may contain ingredients banned by certain sports or professional organizations.
User assumes all liabilities, risks and consequences related to performance enhancing testing and use of this product.
Due to the exceptional potency of this product do not exceed 2 capsules per day under any circumstances. Do not use this product for more than 6 weeks continuously without a 4 week break in use.
ALLERGEN WARNING: Produced in a facility that contains milk, soy, wheat, egg, and nut ingredients.
KEEP OUT OF REACH OF CHILDREN.
Suggested/Recommended/Usage/Directions
Individual responses to dietary supplement may vary considerably. For this reason, some consumers may only need to use 1 capsule per day while others may need to consume 2 capsules per day to achieve desired results. Under no circumstances should more than 2 capsules be consumed in a 24 hour period. This product should be used in conjunction with a proper diet and exercise program.
DIRECTIONS: As a dietary supplement, start by orally ingesting 1 capsule once per day in the morning with 12-16 ounces of water on an empty stomach. If after 7 days the desired effect is not reached, you may increase dosage to 2 capsules once per day in the morning with 12-16 ounces of water on an empty stomach. Due to the exceptional potency of this product do not exceed 2 capsules per day under any circumstances. Do not use this product for more than 6 weeks continuously without a 4 week break in use.
Formula
This product may contain ingredients banned by certain sports or professional organizations.
FDA Disclaimer Statement
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat,cure, or prevent any disease.
General
REV# 090513-90TT
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
ThyroTwin by Giant Sports label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in ThyroTwin by Giant Sports
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
3,5-Diiiodo-L-Thyronine
No knowninteractions
Diiodothyronine (T2) is a thyroid hormone metabolite sold as a fat-loss and metabolism supplement, mostly in the bodybuilding world. Human evidence fo...
3,5-Diiiodo-L-Thyronine monograph & interactions3,3'-Diiodo-L-Thyronine
No knowninteractions
Diiodothyronine (T2) is a thyroid hormone metabolite sold as a fat-loss and metabolism supplement, mostly in the bodybuilding world. Human evidence fo...
3,3'-Diiodo-L-Thyronine monograph & interactionsOther (inactive) ingredients: Gelatin, Magnesium Stearate, Rice Flour. These complete the product’s ingredient list but are not active constituents.
ThyroTwin by Giant Sports Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in ThyroTwin. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for ThyroTwin, from the product label.
Giant Sports
See all Giant Sports products- Name
- GIANT SPORTS PRODUCTS, LLC
- Street Address
- 990 Cedar Bridge Avenue, Suite B7-280
- City
- Brick
- State
- NJ
- ZipCode
- 08723
ThyroTwin by Giant Sports: Common Questions
Does ThyroTwin by Giant Sports interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take ThyroTwin if I'm pregnant or breastfeeding?
Does ThyroTwin actually help with weight loss or metabolism?
Are there any side effects listed for ThyroTwin?
Should I be worried about taking this with thyroid medication?
What exactly are 3,5-Diiiodo-L-Thyronine and 3,3'-Diiodo-L-Thyronine?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if ThyroTwin is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind ThyroTwin’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
ThyroTwin's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 3 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC