PlainVitamins

Mega-Stress Sustained Release

by NaturesPlus · tablet or pill · 90 tablets

  • On the market (NIH)
  • UPC 0 97467 01261 5
  • DSLD label 304650
  • Serving 1 tablet
  • 90 servings

Mega-Stress Sustained Release by NaturesPlus lists 18 ingredients, 18 with an amount per serving of 1 tablet, such as 500 mg of vitamin C, 60 mg of thiamine, 60 mg of riboflavin and 125 mg NE of niacin. Its current label entered the NIH Dietary Supplement Label Database on April 23, 2024.

What is in Mega-Stress 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).

Mega-Stress Sustained Release: Supplement Facts rows against the market (DSLD label 304650, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid500 mg556%Vitamin C in Mega-Stress Sustained Release 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).

Thiamineas Thiamine Hydrochloride, Vitamin B160 mg5,000%Thiamin in Mega-Stress Sustained Release against 9,830 products60 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg60 mg

Higher than 91% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B260 mg4,615%Riboflavin in Mega-Stress Sustained Release against 9,824 products60 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg60 mg

Higher than 93% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacinamide125 mg NE781%Niacin in Mega-Stress Sustained Release against 12,413 products125 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg125 mg

Higher than 93% of 12,413 products listing niacin (median 20 mg). 3.6 times the adult UL a day.

Vitamin B6as Pyridoxine Hydrochloride100 mg5,882%Vitamin B6 in Mega-Stress 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 Methylcobalamin250 mcg10,417%Vitamin B12 in Mega-Stress Sustained Release against 14,425 products250 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg250 mcg

Higher than 77% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin75 mcg250%Biotin in Mega-Stress Sustained Release against 9,447 products75 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg75 mcg

68% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas Calcium Pantothenate200 mg4,000%Pantothenic Acid (Vitamin B5) in Mega-Stress Sustained Release against 10,060 products200 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg200 mg

Higher than 95% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline Bitartrate32 mg6%Choline in Mega-Stress Sustained Release against 4,738 products32 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg32 mg

52% of 4,738 products listing choline give more (median 40 mg).

Calciumas Calcium Amino Acid Chelatecomplex100 mg8%Calcium in Mega-Stress Sustained Release against 17,831 products100 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg100 mg

53% of 17,831 products listing calcium give more (median 115 mg).

Magnesiumas Magnesium Amino Acid Chelatecomplex50 mg12%Magnesium in Mega-Stress Sustained Release against 14,003 products50 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg50 mg

59% of 14,003 products listing magnesium give more (median 86 mg).

Zincas Zinc Amino Acid Chelatecomplex25 mg227%Zinc in Mega-Stress Sustained Release against 13,186 products25 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg25 mg

Higher than 85% of 13,186 products listing zinc (median 11 mg).

Inositol100 mgInositol in Mega-Stress 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).

Valerian50 mgValerian in Mega-Stress Sustained Release against 647 products50 mg per serving; the middle half of products list 80 mg to 450 mg, the median 200 mg.50 mg

82% of 647 products listing valerian give more (median 200 mg).

Para-Aminobenzoic Acid30 mgPABA in Mega-Stress Sustained Release against 1,610 products30 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.30 mg

Higher than 53% of 1,610 products listing PABA (median 25 mg).

Chamomileas Matricaria recutita25 mgGerman Chamomile in Mega-Stress Sustained Release against 197 products25 mg per serving; the middle half of products list 42 mg to 179 mg, the median 75 mg.25 mg

82% of 197 products listing german chamomile give more (median 75 mg).

Source: NIH ODS Dietary Supplement Label Database, label 304650 (entered April 23, 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:

  • Its 60 mg of thiamin is higher than 91% of the 9,830 thiamin products that print an amount; 822 list more.
  • Its 60 mg of riboflavin is higher than 93% of the 9,824 riboflavin products that print an amount; 614 list more.
  • At 1 serving a day, the most its directions give, the label lists 125 mg of niacin, 3.6 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.
  • Its 200 mg of pantothenic acid (vitamin B5) is higher than 95% of the 10,060 pantothenic acid (vitamin B5) products that print an amount; 406 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?

1 product lists the very same ingredients; the nearest amounts come first.

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
Keep out of reach of children.
Allergens and what it does not contain
Free from artificial colors and artificial preservatives. Free from the allergens milk, eggs, fish, crustacean shellfish, tree nuts, peanuts and wheat. Gluten free
Storage
Keep tightly closed in a cool, dry place.

Source: label statements in DSLD label 304650.

What else is on the label?

Other ingredients: Calcium Carbonate, Microcrystalline Cellulose, Dicalcium Phosphate, Stearic Acid, Magnesium Oxide, Zinc Sulfate, Magnesium Stearate, Hydroxypropyl Methylcellulose, Silica, Rose Hip, Soy Protein Isolate, Rice, Pharmaceutical Glaze.

How many labels does Mega-Stress Sustained Release have?

2 labels are on file under this name since April 23, 2024: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 304650 (current) Entered April 23, 2024 · on the market · 90 tablets · UPC 0 97467 01261 5
  2. Label 304649 Entered April 23, 2024 · on the market · 60 tablets · UPC 0 97467 01260 8

DSLD also links this label to: Mega-Stress Complex (image difference, same product), Mega-Stress Complex (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 Natural Organics Laboratories, Inc., makers of Nature's Plus (manufacturer), Amityville, New York. All NaturesPlus products.

Where next?