PlainVitamins

Ultra-Cal Night

by Source Naturals · tablet or pill · 240 tablets

  • On the market (NIH)
  • UPC 0 21078 01854 4
  • DSLD label 296333
  • Serving 1 to 2 tablets; amounts per 1 tablet
  • 240 servings

Ultra-Cal Night by Source Naturals lists 15 ingredients, 15 with an amount per serving of 1 tablet, such as 72 mg of vitamin C, 50 IU (1.25 mcg) of vitamin D3, 250 mcg of vitamin K and 5 mg of vitamin B6, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on September 25, 2023.

What is in Ultra-Cal Night?

Each row as the label prints it, per serving of 1 tablet. 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).

Ultra-Cal Night: Supplement Facts rows against the market (DSLD label 296333, January 2026 release)
IngredientAmount% DVAmong products listing it
Total Carbohydrates1 g1%Carbohydrate in Ultra-Cal Night 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). Per day at the most servings: 3 g.

Vitamin Cas Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate72 mg120%Vitamin C in Ultra-Cal Night against 18,583 products72 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg72 mg

63% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 216 mg.

Vitamin D3as Cholecalciferol50 IU (1.25 mcg)13%Vitamin D in Ultra-Cal Night against 14,175 products1.25 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg1.25 mcg

97% of 14,175 products listing vitamin D give more (median 15 mcg). Per day at the most servings: 3.75 mcg.

Vitamin K250 mcg313%Vitamin K in Ultra-Cal Night against 4,607 products250 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg250 mcg

Higher than 94% of 4,607 products listing vitamin K (median 80 mcg). Per day at the most servings: 750 mcg.

Vitamin B6as Pyridoxine Hydrochloride5 mg250%Vitamin B6 in Ultra-Cal Night 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). Per day at the most servings: 15 mg.

Folateas Folic Acid50 mcg13%Folate in Ultra-Cal Night against 7,022 products50 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.50 mcg

94% of 7,022 products listing folate give more (median 400 mcg). Per day at the most servings: 150 mcg.

Calciumas Calcium Ascorbate, Calcium Carbonate, Calcium Citrate150 mg15%Calcium in Ultra-Cal Night against 17,831 products150 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg150 mg

Higher than 58% of 17,831 products listing calcium (median 115 mg). Per day at the most servings: 450 mg.

Magnesiumas Magnesium Ascorbate, Magnesium Citrate, Magnesium Fumarate150 mg38%Magnesium in Ultra-Cal Night against 14,003 products150 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg150 mg

Higher than 70% of 14,003 products listing magnesium (median 86 mg). Per day at the most servings: 450 mg. 1.3 times the adult UL a day.

Zincas Zinc Chelate2 mg13%Zinc in Ultra-Cal Night against 13,186 products2 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg2 mg

90% of 13,186 products listing zinc give more (median 11 mg). Per day at the most servings: 6 mg.

Copperas Copper Sebacate250 mcg13%Copper in Ultra-Cal Night against 6,468 products0.25 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg0.25 mg

85% of 6,468 products listing copper give more (median 1 mg). Per day at the most servings: 0.75 mg.

Manganeseas Manganese Ascorbate1.7 mg88%Manganese in Ultra-Cal Night against 7,016 products1.7 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg1.7 mg

63% of 7,016 products listing manganese give more (median 2 mg). Per day at the most servings: 5.1 mg.

SoyLifeas Soy Concentrate207 mgSoy in Ultra-Cal Night against 250 products207 mg per serving; the middle half of products list 60 mg to 426.25 mg, the median 125 mg.207 mg

Higher than 65% of 250 products listing soy (median 125 mg). Per day at the most servings: 621 mg.

Total Isoflavones6.4 mgIsoflavones in Ultra-Cal Night against 290 products6.4 mg per serving; the middle half of products list 25 mg to 80 mg, the median 50 mg.6.4 mg

92% of 290 products listing isoflavones give more (median 50 mg). Per day at the most servings: 19.2 mg.

L-Lysineas L-Lysine Hydrochloride15 mgLysine in Ultra-Cal Night against 1,250 products15 mg per serving; the middle half of products list 148.25 mg to 996.25 mg, the median 500 mg.15 mg

96% of 1,250 products listing lysine give more (median 500 mg). Per day at the most servings: 45 mg.

Silicaas Horsetail Extract2.5 mgSilicon in Ultra-Cal Night against 1,220 products2.5 mg per serving; the middle half of products list 2 mg to 10.5 mg, the median 4 mg.2.5 mg

60% of 1,220 products listing silicon give more (median 4 mg). Per day at the most servings: 7.5 mg.

Boronas Boron Amino Acid Chelate750 mcgBoron in Ultra-Cal Night against 3,339 products0.75 mg per serving; the middle half of products list 0.3 mg to 2 mg, the median 1 mg.UL 20 mg0.75 mg

62% of 3,339 products listing boron give more (median 1 mg). Per day at the most servings: 2.25 mg.

Source: NIH ODS Dietary Supplement Label Database, label 296333 (entered September 25, 2023), 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:

  • 97% of the 14,175 products that print an amount of vitamin D list more than its 1.25 mcg (50 IU) of vitamin D (median 15 mcg (600 IU)).
  • Its 250 mcg of vitamin K is higher than 94% of the 4,607 vitamin K products that print an amount; 282 list more.
  • 94% of the 7,022 products that print an amount of folate list more than its 50 mcg of folate (median 400 mcg).
  • At 3 servings a day, the most its directions give, the label lists 450 mg of magnesium, 1.3 times the adult Tolerable Upper Intake Level.
  • 90% of the 13,186 products that print an amount of zinc list more than its 2 mg of zinc (median 11 mg).
  • 92% of the 290 products that print an amount of isoflavones list more than its 6.4 mg of total isoflavones (filed by NIH under isoflavones) (median 50 mg).

The NIH database records 1 to 3 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 Ultra-Cal Night'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: To maximize calcium utilization, take 1 tablet at breakfast and dinner, and 2 tablets at bedtime.
Warnings
Contains wheat and soy.
Caution: If you are taking anticoagulant drugs, such as warfarin (Coumadin), or if you 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.
Allergens and what it does not contain
Contains: No yeast, dairy, egg, sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Source: label statements in DSLD label 296333.

What else is on the label?

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

How many labels does Ultra-Cal Night have?

5 labels are on file under this name since August 22, 2017: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 296333 (current) Entered September 25, 2023 · on the market · 240 tablets · UPC 0 21078 01854 4
  2. Label 78736 Entered September 21, 2017 · on the market · 240 tablets · UPC 0 21078 01064 7
  3. Label 78735 Entered September 21, 2017 · on the market · 120 tablets · UPC 0 21078 01063 0
  4. Label 78734 Entered September 21, 2017 · on the market · 60 tablets · UPC 0 21078 01062 3
  5. Label 75503 Entered August 22, 2017 · off the market August 31, 2017 · 240 tablets · UPC 0 21078 01064 7

DSLD also links this label to: Ultra-Cal Night With Vitamin K (package size difference, same product), Ultra-Cal Night With Vitamin K (image difference, same product), Ultra-Cal Night With Vitamin K (package size 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 Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.

Where next?