PlainVitamins

Ultra II Daily Sustained Release

by NaturesPlus · tablet or pill · 60 tablets

  • On the market (NIH)
  • UPC 0 97467 03041 1
  • DSLD label 320575
  • Serving 1 tablet
  • 60 servings

Ultra II Daily Sustained Release by NaturesPlus lists 26 ingredients, 26 with an amount per serving of 1 tablet, such as 7,500 mcg RAE of vitamin A, 100 mg of vitamin C, 25 mcg (1,000 IU) of vitamin D3 and 67 mg of vitamin E. Its current label entered the NIH Dietary Supplement Label Database on February 23, 2025.

What is in Ultra II Daily Sustained Release?

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 II Daily Sustained Release: Supplement Facts rows against the market (DSLD label 320575, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Beta-Carotene25,000 IU7,500 mcg RAE833%
Vitamin Cas Ascorbic Acid100 mg111%Vitamin C in Ultra II Daily Sustained Release against 18,583 products100 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg100 mg

50% of 18,583 products listing vitamin C give more (median 100 mg).

Vitamin D3as Cholecalciferol1000 IU25 mcg (1,000 IU)125%Vitamin D in Ultra II Daily Sustained Release against 14,175 products25 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg25 mcg

Higher than 59% of 14,175 products listing vitamin D (median 15 mcg).

Vitamin Eas D-Alpha-Tocopheryl Succinate100 IU67 mg447%
Thiamineas Thiamine Hydrochloride, Vitamin B1100 mg8,333%Thiamin in Ultra II Daily Sustained Release against 9,830 products100 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg100 mg

Higher than 94% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B2100 mg7,692%Riboflavin in Ultra II Daily Sustained Release against 9,824 products100 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg100 mg

Higher than 96% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacinamide100 mg NE625%Niacin in Ultra II Daily Sustained Release against 12,413 products100 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg100 mg

Higher than 88% of 12,413 products listing niacin (median 20 mg). 2.9 times the adult UL a day.

Vitamin B6as Pyridoxine Hydrochloride100 mg5,882%Vitamin B6 in Ultra II Daily Sustained Release against 15,277 products100 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg100 mg

Higher than 96% of 15,277 products listing vitamin B6 (median 6 mg).

Folateas Calcium L-5-Methyltetrahydrofolate667 mcg DFE167%
L-Methylfolate400 mcg
Vitamin B12as Methylcobalamin100 mcg4,167%Vitamin B12 in Ultra II Daily Sustained Release against 14,425 products100 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg100 mcg

Higher than 61% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin100 mcg333%Biotin in Ultra II Daily Sustained Release against 9,447 products100 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg100 mcg

61% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas Calcium Pantothenate100 mg2,000%Pantothenic Acid (Vitamin B5) in Ultra II Daily Sustained Release against 10,060 products100 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg100 mg

Higher than 86% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline Bitartrate42 mg8%Choline in Ultra II Daily Sustained Release against 4,738 products42 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg42 mg

Higher than 52% of 4,738 products listing choline (median 40 mg).

Calciumas Calcium Amino Acid Chelateamino acid chelate/complex40 mg3%Calcium in Ultra II Daily Sustained Release against 17,831 products40 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg40 mg

79% of 17,831 products listing calcium give more (median 115 mg).

Ironas Iron Amino Acid Chelateamino acid chelate/complex25 mg139%Iron in Ultra II Daily Sustained Release against 6,910 products25 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg25 mg

Higher than 87% of 6,910 products listing iron (median 5 mg).

Iodineas Kelp, Potassium Iodide150 mcg100%Iodine in Ultra II Daily Sustained Release against 6,382 products150 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg150 mcg

15% of 6,382 products listing iodine give more (median 150 mcg).

Magnesiumas Magnesium Amino Acid Chelateamino acid chelate/complex20 mg5%Magnesium in Ultra II Daily Sustained Release against 14,003 products20 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg20 mg

83% of 14,003 products listing magnesium give more (median 86 mg).

Zincas Zinc Amino Acid Chelateamino acid chelate/complex20 mg182%Zinc in Ultra II Daily Sustained Release against 13,186 products20 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg20 mg

Higher than 79% of 13,186 products listing zinc (median 11 mg).

Seleniumas Amino Acid Complex10 mcg18%Selenium in Ultra II Daily Sustained Release against 7,658 products10 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg10 mcg

94% of 7,658 products listing selenium give more (median 55 mcg).

Manganeseas Manganese Amino Acid Chelateamino acid chelate/complex6.1 mg265%Manganese in Ultra II Daily Sustained Release against 7,016 products6.1 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg6.1 mg

Higher than 91% of 7,016 products listing manganese (median 2 mg).

Para-Aminobenzoic Acid100 mgPABA in Ultra II Daily Sustained Release against 1,610 products100 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.100 mg

Higher than 86% of 1,610 products listing PABA (median 25 mg).

Inositol100 mgInositol in Ultra II Daily Sustained Release against 4,042 products100 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.100 mg

Higher than 76% of 4,042 products listing inositol (median 30 mg).

Rutinas Sophora japonica25 mgRutin in Ultra II Daily Sustained Release against 1,232 products25 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.25 mg

37% of 1,232 products listing rutin give more (median 25 mg).

Bioflavonoid Complexas Citrus sinensis25 mgFlavonoid in Ultra II Daily Sustained Release against 2,343 products25 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.25 mg

66% of 2,343 products listing flavonoid give more (median 50 mg).

Betaine Hydrochloride25 mgBetaine Hydrochloride in Ultra II Daily Sustained Release against 914 products25 mg per serving; the middle half of products list 25 mg to 178 mg, the median 50 mg.25 mg

58% of 914 products listing betaine hydrochloride give more (median 50 mg).

Hesperidin Complexas Citrus sinensis5 mg

Source: NIH ODS Dietary Supplement Label Database, label 320575 (entered February 23, 2025), 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:

  • Its 100 mg of thiamin is higher than 94% of the 9,830 thiamin products that print an amount; 163 list more.
  • Its 100 mg of riboflavin is higher than 96% of the 9,824 riboflavin products that print an amount; 110 list more.
  • At 1 serving a day, the most its directions give, the label lists 100 mg of niacin, 2.9 times the adult Tolerable Upper Intake Level.
  • Its 100 mg of vitamin B6 is higher than 96% of the 15,277 vitamin B6 products that print an amount; 173 list more.
  • 94% of the 7,658 products that print an amount of selenium list more than its 10 mcg of selenium (median 55 mcg).
  • Its 6.1 mg of manganese is higher than 91% of the 7,016 manganese products that print an amount; 598 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?

The products whose ingredient lists overlap most with Ultra II Daily Sustained Release'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: One tablet daily.
Warnings
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a physician or poison control center immediately.

Source: label statements in DSLD label 320575.

What else is on the label?

Other ingredients: Potassium Gluconate, Stearic Acid, Ferrous Fumarate, Microcrystalline Cellulose, Dicalcium Phosphate, Zinc Sulfate, Manganese Gluconate, Calcium Carbonate, Hydroxypropyl Methylcellulose, Magnesium Oxide, Silica, Magnesium Stearate, Zinc Gluconate, Rose Hip, Potassium Amino Acid Complex, Papaya, isolated Soy Protein, Ferrous Gluconate, Bromelain, Parsley, Green Cabbage, Watercress, Acerola Cherry, Icelandic Kelp, Brown Rice, Date, Papaya, Chlorella, Spirulina, Black Currant, Garlic, Apple Pectin, Carrot, Sunflower Seed Oil, Broccoli, Spinach, Fig, Beet Greens, Lecithin, Pharmaceutical Glaze.

How many labels does Ultra II Daily Sustained Release have?

3 labels are on file under this name since December 14, 2023: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 320575 (current) Entered February 23, 2025 · on the market · 60 tablets · UPC 0 97467 03041 1
  2. Label 320528 Entered October 24, 2024 · on the market · 30 tablets · UPC 0 97467 03040 4
  3. Label 298775 Entered December 14, 2023 · on the market · 90 tablets · UPC 0 97467 03042 8

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

Who makes it?

The label names Natural Organics Laboratories, Inc. makers of Nature's Plus (manufacturer), Amityville, New York. All NaturesPlus products.

Where next?