PlainVitamins

Cal-Mag Stress Formula

by NOW · tablet or pill · 100 tablets

  • On the market (NIH)
  • UPC 7 33739 01275 3
  • DSLD label 313649
  • Serving 2 tablets
  • 50 servings

Cal-Mag Stress Formula by NOW lists 15 ingredients, 15 with an amount per serving of 2 tablets, such as 360 mg of vitamin C, 10 mg of thiamine, 5 mg of riboflavin and 40 mg of niacin. Its current label entered the NIH Dietary Supplement Label Database on May 23, 2024.

What is in Cal-Mag Stress Formula?

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).

Cal-Mag Stress Formula: Supplement Facts rows against the market (DSLD label 313649, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate360 mg400%Vitamin C in Cal-Mag Stress Formula against 18,583 products360 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg360 mg

Higher than 79% of 18,583 products listing vitamin C (median 100 mg).

Thiamineas Thiamine Hydrochloride, Vitamin B110 mg833%Thiamin in Cal-Mag Stress Formula against 9,830 products10 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg10 mg

Higher than 59% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B25 mg385%Riboflavin in Cal-Mag Stress Formula against 9,824 products5 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg5 mg

Higher than 51% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacinamide, Vitamin B340 mg250%Niacin in Cal-Mag Stress Formula against 12,413 products40 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg40 mg

Higher than 71% of 12,413 products listing niacin (median 20 mg). 1.1 times the adult UL a day.

Vitamin B6as Pyridoxine Hydrochloride5 mg294%Vitamin B6 in Cal-Mag Stress Formula against 15,277 products5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg5 mg

51% of 15,277 products listing vitamin B6 give more (median 6 mg).

Folate1,360 mcg DFE340%
Folic Acid800 mcg
Vitamin B12as Cyanocobalamin20 mcg833%Vitamin B12 in Cal-Mag Stress Formula against 14,425 products20 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg20 mcg

59% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Biotin300 mcg1,000%Biotin in Cal-Mag Stress Formula against 9,447 products300 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg300 mcg

Higher than 53% of 9,447 products listing biotin (median 200 mcg).

Pantothenic Acidas Calcium Pantothenate, Vitamin B520 mg400%Pantothenic Acid (Vitamin B5) in Cal-Mag Stress Formula against 10,060 products20 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg20 mg

Higher than 55% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline Bitartrate20 mg4%Choline in Cal-Mag Stress Formula against 4,738 products20 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg20 mg

68% of 4,738 products listing choline give more (median 40 mg).

Calciumas Calcium Ascorbate, Calcium Carbonate, Calcium Citrate1,000 mg, elemental1 g77%Calcium in Cal-Mag Stress Formula against 17,831 products1,000 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg1,000 mg

Higher than 95% of 17,831 products listing calcium (median 115 mg).

Magnesiumas Magnesium Ascorbate, Magnesium Citrate, Magnesium Oxideelemental500 mg119%Magnesium in Cal-Mag Stress Formula against 14,003 products500 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg500 mg

Higher than 96% of 14,003 products listing magnesium (median 86 mg). 1.4 times the adult UL a day.

Inositol20 mgInositol in Cal-Mag Stress Formula against 4,042 products20 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.20 mg

64% of 4,042 products listing inositol give more (median 30 mg).

Paba10 mgPABA in Cal-Mag Stress Formula against 1,610 products10 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.10 mg

72% of 1,610 products listing PABA give more (median 25 mg).

Source: NIH ODS Dietary Supplement Label Database, label 313649 (entered May 23, 2024), 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:

  • At 1 serving a day, the most its directions give, the label lists 40 mg of niacin, 1.1 times the adult Tolerable Upper Intake Level.
  • Its 1,000 mg of calcium is higher than 95% of the 17,831 calcium products that print an amount; 314 list more.
  • At 1 serving a day, the most its directions give, the label lists 500 mg of magnesium, 1.4 times the adult Tolerable Upper Intake Level.

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?

2 products list the very same ingredients; the nearest amounts come first.

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 usage: Take 2 tablets daily with food. Can be taken in divided doses.
Warnings
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Caution: For adults only. Keep out of reach of children.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
This product contains biotin which may interfere with blood test results. Go to nowfoods.com/biotinlab for details.
Allergens and what it does not contain
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 313649.

What else is on the label?

Other ingredients: Hydroxypropyl Cellulose, Vegetarian Coating, Stearic Acid, Croscarmellose Sodium, Silicon Dioxide, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Crescent H (Halal) GMP Quality Assured; Triangle K (Kosher).

How many labels does Cal-Mag Stress Formula have?

One label is on file, entered on May 23, 2024.

  1. Label 313649 (current) Entered May 23, 2024 · on the market · 100 tablets · UPC 7 33739 01275 3

DSLD also links this label to: Cal-Mag with B-Complex & Vitamin C (image difference, same product), Cal-Mag With B-Complex & Vitamin C (image difference, same product), Cal-Mag With B-Complex & Vitamin C (image difference, same product), Cal-Mag With B-Complex & Vitamin C (image difference, same product), Cal-Mag (image difference, same product), Cal-Mag (image difference, same product).

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

Who makes it?

The label names NOW Foods (manufacturer), Bloomingdale, IL. All NOW products.

Where next?