D5

by CHK Nutrition · tablet or pill · 240 tablets

  • On the market (NIH)
  • DSLD label 252890
  • Serving 4 tablets
  • 60 servings

D5 by CHK Nutrition lists 9 ingredients, 9 with an amount per serving of 4 tablets, such as 500 mg of vitamin C, 37.5 mg of vitamin B6, 340 mcg DFE of folate and 110 mg of calcium. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2021.

What is in D5?

Each row as the label prints it, per serving of 4 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).

D5: Supplement Facts rows against the market (DSLD label 252890, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid500 mg556%Vitamin C in D5 against 18,583 products500 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg500 mg

Higher than 81% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 1,000 mg.

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine Hydrochloride)37.5 mg2,206%Vitamin B6 in D5 against 15,277 products37.5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg37.5 mg

Higher than 85% of 15,277 products listing vitamin B6 (median 6 mg). Per day at the most servings: 75 mg.

Folate340 mcg DFE85%
Folic Acid200 mcg85%
Calciumas Calcium CitrateCalcium (Form: as Calcium Citrate)110 mg8%Calcium in D5 against 17,831 products110 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg110 mg

51% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 220 mg.

L-Lysineas L-Lysine HydrochlorideL-Lysine (Form: as L-Lysine Hydrochloride)250 mgLysine in D5 against 1,250 products250 mg per serving; the middle half of products list 148.25 mg to 996.25 mg, the median 500 mg.250 mg

63% of 1,250 products listing lysine give more (median 500 mg). Per day at the most servings: 500 mg.

5-Hydroxytryptophanas Griffonia simplicifolia Seed Extract5-Hydroxytryptophan (Form: from Griffonia simplicifolia seed extract PlantPart: seed Genus: Griffonia Species: simplicifolia)150 mg5-HTP in D5 against 676 products150 mg per serving; the middle half of products list 50 mg to 100 mg, the median 100 mg.150 mg

Higher than 84% of 676 products listing 5-HTP (median 100 mg). Per day at the most servings: 300 mg.

L-Tyrosine1,500 mgTyrosine in D5 against 1,680 products1,500 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.1,500 mg

Higher than 87% of 1,680 products listing tyrosine (median 500 mg). Per day at the most servings: 3,000 mg.

Mucuna pruriens extractas L-DopaMucuna pruriens extract (Form: standardized to 40% L-Dopa) PlantPart: seed Genus: Mucuna Species: pruriens300 mgCowhage in D5 against 417 products300 mg per serving; the middle half of products list 60 mg to 400 mg, the median 125 mg.300 mg

Higher than 69% of 417 products listing cowhage (median 125 mg). Per day at the most servings: 600 mg.

Source: NIH ODS Dietary Supplement Label Database, label 252890 (entered August 23, 2021), 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?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

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 D5'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
Directions: Take 4 tablets twice per day.
Warnings
Use only under the supervision of a licensed healthcare practitioner.
If you are pregnant or nursing consult your health care practitioner before use.
Keep away from children
Allergens and what it does not contain
GF Gluten-free
Storage
Keep away from direct sunlight

Source: label statements in DSLD label 252890.

What else is on the label?

Other ingredients: Stearic Acid, Cellulose, Dicalcium Phosphate, Croscarmellose Sodium, Magnesium Stearate, Silicon Dioxide, Hypromellose, Hydroxypropyl Cellulose, Polyethylene Glycol, micronized Wax.

How many labels does D5 have?

2 labels are on file under this name since February 23, 2018: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 252890 (current) Entered August 23, 2021 · on the market · 240 tablets
  2. Label 174189 Entered February 23, 2018 · off the market June 7, 2021 · 240 capsules

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

Who makes it?

The label names CHK Nutrition (distributor), Duluth, MN. All CHK Nutrition products.

Where next?