Vitamin C, D3, Zinc & K2

by Herbs SRA · capsule · 120 vegetarian capsules

  • On the market (NIH)
  • DSLD label 316219
  • Serving 2 capsules ((650mg))
  • 60 servings

Vitamin C, D3, Zinc & K2 by Herbs SRA lists 4 ingredients, 4 with an amount per serving of 2 capsules, such as 565 mg of vitamin C, 50 mg of zinc, 9 mg of vitamin K2 and 125 mcg (5,000 IU) of vitamin D3. Its current label entered the NIH Dietary Supplement Label Database on August 22, 2024.

What is in Vitamin C, D3, Zinc & K2?

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).

Vitamin C, D3, Zinc & K2: Supplement Facts rows against the market (DSLD label 316219, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid565 mg575%Vitamin C in Vitamin C, D3, Zinc & K2 against 18,583 products565 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg565 mg

Higher than 89% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 1,130 mg.

Zincas Zinc Citrate50 mg333%Zinc in Vitamin C, D3, Zinc & K2 against 13,186 products50 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg50 mg

Higher than 97% of 13,186 products listing zinc (median 11 mg). Per day at the most servings: 100 mg. 2.5 times the adult UL a day.

Vitamin K2as Menaquinone-49 mg455%

This amount is far outside what other labels list for vitamin K, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD.

Vitamin D3as Cholecalciferol5000 IU125 mcg (5,000 IU)625%Vitamin D in Vitamin C, D3, Zinc & K2 against 14,175 products125 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg125 mcg

Higher than 92% of 14,175 products listing vitamin D (median 15 mcg). Per day at the most servings: 250 mcg. 2.5 times the adult UL a day.

Source: NIH ODS Dietary Supplement Label Database, label 316219 (entered August 22, 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 2 servings a day, the most its directions give, the label lists 100 mg of zinc, 2.5 times the adult Tolerable Upper Intake Level.
  • At 2 servings a day, the most its directions give, the label lists 250 mcg (10,000 IU) of vitamin D, 2.5 times the adult Tolerable Upper Intake Level.

The NIH database records 2 servings 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 Vitamin C, D3, Zinc & K2'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: As a dietary supplement, take two (2) capsules twice daily. For best results, take capsules in the morning and the afternoon with 8oz. of water.
Warnings
Caution: Do not exceed recommended dose. Do not use if safety seal is damaged or missing.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. Keep out of the reach of children.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 316219.

What else is on the label?

Other ingredients: Cellulose.

How many labels does Vitamin C, D3, Zinc & K2 have?

One label is on file, entered on August 22, 2024.

  1. Label 316219 (current) Entered August 22, 2024 · on the market · 120 vegetarian capsules

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

Who makes it?

The label names Herbs SRA (distributor), Houston, TX. All Herbs SRA products.

Where next?