Liquid D and K
by Douglas Laboratories · liquid · 1 fl. Oz.
- Off the market since May 2020 (NIH)
- UPC 3 10539 02751 6
- DSLD label 56108
- Serving 1 ml (1 dropper)
- 30 servings
Liquid D and K by Douglas Laboratories lists 4 ingredients, 4 with an amount per serving of 1 ml, such as 1,000 IU (25 mcg) of vitamin D3. Its current label entered the NIH Dietary Supplement Label Database on January 25, 2016.
What is in Liquid D and K?
Each row as the label prints it, per serving of 1 ml. 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 D3as Cholecalciferol | 1,000 IU (25 mcg) | 250% | Higher than 59% of 14,175 products listing vitamin D (median 15 mcg). |
| Vitamin Kas Vitamin K2Vitamin K (Form: as Vitamin K-2) | 1,545 mcg | 1,931% | |
| Vitamin K-2as Menaquinone-4Vitamin K-2 (Form: MK-4) Note: 1,000 mcg | 1 mg | 1,288%* | Higher than 98% of 4,607 products listing vitamin K (median 80 mcg). |
| Vitamin K1 | 500 mcg | ||
| Vitamin K-2as SoyVitamin K-2 (Form: from Soy) | 45 mcg |
* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.
Source: NIH ODS Dietary Supplement Label Database, label 56108 (entered January 25, 2016), 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:
- Its 1,545 mcg of vitamin K (3 rows of the label added together) is higher than 98% of the 4,607 vitamin K products that print an amount; 74 list more.
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?
6 products list the very same ingredients; the nearest amounts come first.
- Liquid D and KEvolved Natural Solutions · off the market same ingredients
- Synergy KPure Encapsulations same ingredients
- Liposomal K2 Orange FlavorVinco same ingredients
- D3 25 mcg (1,000 IU) K2 MK-7 450 mcg RaspberryNatural Grocers by Vitamin Cottage same ingredients
- PureHeart K2DPure Encapsulations same ingredients
- Vitamin D ComplexThorne FX · off the market same ingredients
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: As a dietary supplement, adults take 1 dropper (1 ml) daily or as directed by your healthcare professional.
- Warning: This product contains vitamin K, which interferes with the prescription drugs Coumadin and Warfarin. Do not take this if taking either of these drugs.
- Warnings
- KEEP OUT OF REACH OF CHILDREN
- Tamper resistant package, do not use if outer seal is missing.
- CAUTION: Accidental overdose of liquid vitamin D products can lead to serious adverse side effects in infants. THIS PRODUCT IS NOT INTENDED FOR INFANTS. The recommended daily dose of vitamin D for infants is 400 IU. This product delivers 1,000 IU of vitamin D per dose.
- Allergens and what it does not contain
- This product contains NO yeast, wheat, gluten, milk/dairy, sodium, sugar, starch, artificial preservatives, artificial flavoring, or genetically modified organisms (GMOs).
- Storage
- REFRIGERATE AFTER OPENING
- For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity).
Source: label statements in DSLD label 56108.
What else is on the label?
Other ingredients: Water, Medium Chain Triglycerides, Sunflower Oil, Cellulose, natural Vanilla flavor, Xanthan Gum, Potassium Sorbate, Stevia.
How many labels does Liquid D and K have?
4 labels are on file under this name since February 23, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 56108 (current) Entered January 25, 2016 · off the market May 18, 2020 · 1 fl. Oz. · UPC 3 10539 02751 6
- Label 30591 Entered February 26, 2014 · off the market December 15, 2015 · 1 fl. Oz. · UPC 3 10539 02751 6
- Label 9503 Entered June 25, 2012 · off the market July 31, 2013 · 1 fl. Oz. · UPC 3 10539 02751 6
- Label 5330 Entered February 23, 2012 · off the market January 20, 2012 · 1 fl. Oz. · UPC 3 10539 02751 6
DSLD also links this label to: Liquid D and K Natural Vanilla Flavor (image difference, same product), Liquid D and K Natural Vanilla Flavor (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 Douglas Laboratories (distributor), Pittsburgh, PA. All Douglas Laboratories products.