PlainVitamins

Feverfew Extract

by Source Naturals · tablet or pill · 100 tablets

  • On the market (NIH)
  • UPC 0 21078 00209 3
  • DSLD label 211659
  • Serving 1 to 2 tablets; amounts per 2 tablets
  • 50 servings

Feverfew Extract by Source Naturals lists 5 ingredients, 5 with an amount per serving of 2 tablets, such as 20 mg of vitamin C, 72 mg of calcium, 140 mg of magnesium and 400 mg of feverfew leaf extract, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on December 22, 2019.

What is in Feverfew Extract?

Each row as the label prints it, per serving of 2 tablets. 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).

Feverfew Extract: Supplement Facts rows against the market (DSLD label 211659, January 2026 release)
IngredientAmount% DVAmong products listing it
Total Carbohydrates1 g1%Carbohydrate in Feverfew Extract against 21,979 products1 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.1 g

74% of 21,979 products listing carbohydrate give more (median 3 g).

Vitamin Cas Ascorbic Acid20 mg33%Vitamin C in Feverfew Extract against 18,583 products20 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg20 mg

90% of 18,583 products listing vitamin C give more (median 100 mg).

Calciumas Calcium CarbonateCalcium (Form: as Calcium Carbonate)72 mg7%Calcium in Feverfew Extract against 17,831 products72 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg72 mg

65% of 17,831 products listing calcium give more (median 115 mg).

Magnesiumas Magnesium OxideMagnesium (Form: as Magnesium Oxide)140 mg35%Magnesium in Feverfew Extract against 14,003 products140 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg140 mg

Higher than 69% of 14,003 products listing magnesium (median 86 mg).

Feverfew leaf extractas ParthenolidesFeverfew leaf extract (Form: standardized to 0.5% Parthenolides) PlantPart: leaf400 mgFeverfew in Feverfew Extract against 162 products500 mg per serving; the middle half of products list 50 mg to 380 mg, the median 200 mg.500 mg

Higher than 81% of 162 products listing feverfew (median 200 mg).

Feverfew100 mg

Source: NIH ODS Dietary Supplement Label Database, label 211659 (entered December 22, 2019), version 9.4.0. See the label on DSLD. 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:

  • 90% of the 18,583 products that print an amount of vitamin C list more than its 20 mg of vitamin C (median 100 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 Feverfew Extract's, rare ingredients counting for more.

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
Suggested Use: 1 or 2 tablets daily between meals.
Warnings
Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.

Source: label statements in DSLD label 211659.

What else is on the label?

Other ingredients: Sorbitol, Stearic Acid, modified Cellulose Gum, Silica.

How many labels does Feverfew Extract have?

2 labels are on file under this name since December 22, 2019: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 211659 (current) Entered December 22, 2019 · on the market · 100 tablets · UPC 0 21078 00209 3
  2. Label 211656 Entered December 22, 2019 · off the market September 20, 2019 · 50 tablets · UPC 0 21078 00208 6

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.

Where next?