Nuthroid
by Cardiovascular Research · capsule · 60 capsules
- On the market (NIH)
- UPC 6 96859 13135 6
- DSLD label 283443
- Serving 2 capsules
- 30 servings
Nuthroid by Cardiovascular Research lists 5 ingredients, 2 with an amount per serving of 2 capsules, such as 65 mg of vitamin C and 30 mg of L-tyrosine; 3 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on March 22, 2023.
What is in Nuthroid?
Each row as the label prints it, per serving of 2 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin Cas Ascorbic Acid | 65 mg | 70% | 64% of 18,583 products listing vitamin C give more (median 100 mg). |
| Bovine Glandular Complex | 125 mg | ||
| ABgland Liveras Bovine | in the blend, no amount given | ||
| ABgland Bovine Thyroid | in the blend, no amount given | ||
| Abgland Spleenas Bovine | in the blend, no amount given | ||
| L-Tyrosine | 30 mg | 93% of 1,680 products listing tyrosine give more (median 500 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 283443 (entered March 22, 2023), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- 93% of the 1,680 products that print an amount of tyrosine list more than its 30 mg of L-tyrosine (filed by NIH under tyrosine) (median 500 mg).
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
The products whose ingredient lists overlap most with Nuthroid's, rare ingredients counting for more.
- Grassfed Beef ThyroidAncestral Supplements 2 shared, 52% alike
- Life BloodHeart & Soil 2 shared, 49% alike
- Blood VitalityAncestral Supplements 2 shared, 45% alike
- Xtra-Cell ImmunityDouglas Laboratories 2 shared, 39% alike
- B Cell FormulaEcological Formulas 3 shared, 37% alike
- Tri-40Progressive Professional from Progressive Laboratories 2 shared, 35% alike
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Directions Take two capsules daily, or as directed by a physician.
- Allergens and what it does not contain
- Contains no binders, soy, yeast, egg, or other common allergens.
- Gluten free, casein free
Source: label statements in DSLD label 283443.
What else is on the label?
Other ingredients: Microcrystalline Cellulose, Gelatin, Beef Tissue, Dicalcium Phosphate, Silicon Dioxide, Magnesium Stearate.
How many labels does Nuthroid have?
2 labels are on file under this name since June 25, 2013: other sizes, label designs and reformulations. The current one leads this page.
- Label 283443 (current) Entered March 22, 2023 · on the market · 60 capsules · UPC 6 96859 13135 6
- Label 22967 Entered June 25, 2013 · off the market June 20, 2022 · 60 capsules
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Cardiovascular Research, LTD. (distributor), Concord, CA. All Cardiovascular Research products.